Dtcs p0153 to p0200 Chrysler Crossfire I final

Scheme 121

1. When Monitored : Start and drive vehicle greater than 32 km/h (20 MPH) and less than 89 km/h (55 MPH). Throttle open for a minimum 120 seconds. Coolant Temp greater than 70°C (158°F) Catalytic Converter Temperature greater than 600°C (1112°F).
2. Set Condition : The O2 sensor voltage switches only 11 times or less from lean to rich within 20 seconds during monitoring. Two Trip Fault.

For a complete Powertrain Control Module Circuit Diagram, refer to SCHEMATICS AND DIAGRAMS .

Scheme 122

Scheme 123

1. 1) PRE-DIAGNOSTIC CHECK OUT NOTE: Always perform diagnostics with a fully charged battery. NOTE: Check connectors - Clean/repair as necessary. Poor pin to terminal connections can set DTCs. NOTE: Check for applicable TSBs related to the problem. Turn the ignition on. With the scan tool, read PCM DTCs. Using the wiring diagram/schematic as a guide, inspect the wiring and connectors. Repair as necessary. Perform this procedure prior to symptom diagnosis. Continue Go to 2) .
2. 2) CHECK FOR CURRENT DTC NOTE: It is important to perform the diagnostics on the O2 Sensor that set the DTC. NOTE: Check for contaminates that may have damaged the O2 Sensor: contaminated fuel, unapproved silicone, oil and coolant. NOTE: If the PCM detects and stores a DTC, the PCM also stores the engine/vehicle operating conditions under which the DTC was set. Some of these conditions are displayed on the scan tool at the same time the DTC is displayed. NOTE: Before erasing stored DTCs, record these conditions. Attempting to duplicate these conditions may assist when checking for a DTC. Turn the ignition on. With the scan tool, erase PCM DTCs. NOTE: It maybe necessary to road test the vehicle for this DTC to set. With the scan tool, read PCM DTCs. Did this DTC set again? Yes Go to 3) . No Go to 6) .
3. 3) EXHAUST LEAK Start the engine. Inspect the exhaust system for leaks between the engine and the O2 Sensors. Are there any exhaust leaks? Yes Repair or replace the leaking exhaust parts as necessary. Refer to «REMOVAL»(/chrysler/crossfire/i-final-2008-2008/remont/exhaust/#exhaust-system__removal) . Perform «POWERTRAIN VERIFICATION TEST - VER 2»(/chrysler/crossfire/i-final-2008-2008/remont/testing-diagnostics/#dtcs-p1999-to-p2561-checking-fuel-delivery-hard-start-engine-cranks-but-does-not-start-powertrain-verification-tests__powertrain-verification-test-ver-2) . No Go to 4) .
4. 4) 2/1 O2 SENSOR SIGNAL CIRCUIT Turn the ignition off. Disconnect the 2/1 O2 Sensor harness connector. NOTE: Check connectors - Clean/repair as necessary. Turn the ignition on. Measure the voltage on the 2/1 O2 Sensor Signal circuit at the 2/1 O2 Sensor harness connector. Is the voltage approximately 0.47 volt? Yes Go to 5) . No Check the 2/1 O2 Sensor Signal circuit for damage, short to ground, open, or short to voltage. If OK, replace and program the Powertrain Control Module. Refer to «REMOVAL»(/chrysler/crossfire/i-final-2008-2008/remont/communication-devices/#electronic-control-modules-service-information) . Perform «POWERTRAIN VERIFICATION TEST - VER 2»(/chrysler/crossfire/i-final-2008-2008/remont/testing-diagnostics/#dtcs-p1999-to-p2561-checking-fuel-delivery-hard-start-engine-cranks-but-does-not-start-powertrain-verification-tests__powertrain-verification-test-ver-2) .
5. 5) SENSOR GROUND CIRCUIT With the ignition on. Measure the voltage on the Sensor Ground circuit at the 2/1 O2 Sensor harness connector. Is the voltage above 0.1 volt? Yes Check the Sensor Ground circuit for damage, short to ground, open, or short to voltage. If OK, replace and program the Powertrain Control Module. Refer to «REMOVAL»(/chrysler/crossfire/i-final-2008-2008/remont/communication-devices/#electronic-control-modules-service-information) . Perform «POWERTRAIN VERIFICATION TEST - VER 2»(/chrysler/crossfire/i-final-2008-2008/remont/testing-diagnostics/#dtcs-p1999-to-p2561-checking-fuel-delivery-hard-start-engine-cranks-but-does-not-start-powertrain-verification-tests__powertrain-verification-test-ver-2) . No Replace the Oxygen Sensor. Refer to «REMOVAL»(/chrysler/crossfire/i-final-2008-2008/remont/fuel-system/#fuel-system) . Perform «POWERTRAIN VERIFICATION TEST - VER 2»(/chrysler/crossfire/i-final-2008-2008/remont/testing-diagnostics/#dtcs-p1999-to-p2561-checking-fuel-delivery-hard-start-engine-cranks-but-does-not-start-powertrain-verification-tests__powertrain-verification-test-ver-2) .
6. 6) INTERMITTENT WIRING AND CONNECTORS The conditions necessary to set this DTC are not present at this time. NOTE: Check connectors - Clean/repair as necessary. Poor pin to terminal connections can set DTCs. Using the wiring diagram/schematic as a guide, inspect the wiring and connectors specific to this DTC. Wiggle the wires while checking for shorts and open circuits. NOTE: Check for any Technical Service Bulletins that may apply. Were there any problems found? Yes Repair as necessary. Perform «POWERTRAIN VERIFICATION TEST - VER 2»(/chrysler/crossfire/i-final-2008-2008/remont/testing-diagnostics/#dtcs-p1999-to-p2561-checking-fuel-delivery-hard-start-engine-cranks-but-does-not-start-powertrain-verification-tests__powertrain-verification-test-ver-2) . No The condition that caused this DTC to set is currently not present. Inspect the related wiring harness for a possible intermittent condition.

P0153-O2 SENSOR 2/1 SHORT DELAY TIME

1. When Monitored : Start and drive vehicle greater than 32 km/h (20 MPH) and less than 89 km/h (55 MPH). Throttle open for a minimum 120 seconds. Coolant Temp greater than 70°C (158°F) Catalytic Converter Temperature greater than 600°C (1112°F).
2. Set Condition : The O2 sensor voltage switches only 11 times or less from lean to rich within 20 seconds during monitoring. Two Trip Fault.

For a complete Powertrain Control Module Circuit Diagram, refer to SCHEMATICS AND DIAGRAMS .

Diagnostic Test

1. 1) PRE-DIAGNOSTIC CHECK OUT NOTE: Always perform diagnostics with a fully charged battery. NOTE: Check connectors - Clean/repair as necessary. Poor pin to terminal connections can set DTCs. NOTE: Check for applicable TSBs related to the problem. Turn the ignition on. With the scan tool, read PCM DTCs. Using the wiring diagram/schematic as a guide, inspect the wiring and connectors. Repair as necessary. Perform this procedure prior to symptom diagnosis. Continue Go to 2) .
2. 2) CHECK FOR CURRENT DTC NOTE: It is important to perform the diagnostics on the O2 Sensor that set the DTC. NOTE: Check for contaminates that may have damaged the O2 Sensor: contaminated fuel, unapproved silicone, oil and coolant. NOTE: If the PCM detects and stores a DTC, the PCM also stores the engine/vehicle operating conditions under which the DTC was set. Some of these conditions are displayed on the scan tool at the same time the DTC is displayed. NOTE: Before erasing stored DTCs, record these conditions. Attempting to duplicate these conditions may assist when checking for a DTC. Turn the ignition on. With the scan tool, erase PCM DTCs. NOTE: It maybe necessary to road test the vehicle for this DTC to set. With the scan tool, read PCM DTCs. Did this DTC set again? Yes Go to 3) . No Go to 6) .
3. 3) EXHAUST LEAK Start the engine. Inspect the exhaust system for leaks between the engine and the O2 Sensors. Are there any exhaust leaks? Yes Repair or replace the leaking exhaust parts as necessary. Refer to «REMOVAL»(/chrysler/crossfire/i-final-2008-2008/remont/exhaust/#exhaust-system__removal) . Perform «POWERTRAIN VERIFICATION TEST - VER 2»(/chrysler/crossfire/i-final-2008-2008/remont/testing-diagnostics/#dtcs-p1999-to-p2561-checking-fuel-delivery-hard-start-engine-cranks-but-does-not-start-powertrain-verification-tests__powertrain-verification-test-ver-2) . No Go to 4) .
4. 4) 2/1 O2 SENSOR SIGNAL CIRCUIT Turn the ignition off. Disconnect the 2/1 O2 Sensor harness connector. NOTE: Check connectors - Clean/repair as necessary. Turn the ignition on. Measure the voltage on the 2/1 O2 Sensor Signal circuit at the 2/1 O2 Sensor harness connector. Is the voltage approximately 0.47 volt? Yes Go to 5) . No Check the 2/1 O2 Sensor Signal circuit for damage, short to ground, open, or short to voltage. If OK, replace and program the Powertrain Control Module. Refer to «REMOVAL»(/chrysler/crossfire/i-final-2008-2008/remont/communication-devices/#electronic-control-modules-service-information) . Perform «POWERTRAIN VERIFICATION TEST - VER 2»(/chrysler/crossfire/i-final-2008-2008/remont/testing-diagnostics/#dtcs-p1999-to-p2561-checking-fuel-delivery-hard-start-engine-cranks-but-does-not-start-powertrain-verification-tests__powertrain-verification-test-ver-2) .
5. 5) SENSOR GROUND CIRCUIT With the ignition on. Measure the voltage on the Sensor Ground circuit at the 2/1 O2 Sensor harness connector. Is the voltage above 0.1 volt? Yes Check the Sensor Ground circuit for damage, short to ground, open, or short to voltage. If OK, replace and program the Powertrain Control Module. Refer to «REMOVAL»(/chrysler/crossfire/i-final-2008-2008/remont/communication-devices/#electronic-control-modules-service-information) . Perform «POWERTRAIN VERIFICATION TEST - VER 2»(/chrysler/crossfire/i-final-2008-2008/remont/testing-diagnostics/#dtcs-p1999-to-p2561-checking-fuel-delivery-hard-start-engine-cranks-but-does-not-start-powertrain-verification-tests__powertrain-verification-test-ver-2) . No Replace the Oxygen Sensor. Refer to «REMOVAL»(/chrysler/crossfire/i-final-2008-2008/remont/fuel-system/#fuel-system) . Perform «POWERTRAIN VERIFICATION TEST - VER 2»(/chrysler/crossfire/i-final-2008-2008/remont/testing-diagnostics/#dtcs-p1999-to-p2561-checking-fuel-delivery-hard-start-engine-cranks-but-does-not-start-powertrain-verification-tests__powertrain-verification-test-ver-2) .
6. 6) INTERMITTENT WIRING AND CONNECTORS The conditions necessary to set this DTC are not present at this time. NOTE: Check connectors - Clean/repair as necessary. Poor pin to terminal connections can set DTCs. Using the wiring diagram/schematic as a guide, inspect the wiring and connectors specific to this DTC. Wiggle the wires while checking for shorts and open circuits. NOTE: Check for any Technical Service Bulletins that may apply. Were there any problems found? Yes Repair as necessary. Perform «POWERTRAIN VERIFICATION TEST - VER 2»(/chrysler/crossfire/i-final-2008-2008/remont/testing-diagnostics/#dtcs-p1999-to-p2561-checking-fuel-delivery-hard-start-engine-cranks-but-does-not-start-powertrain-verification-tests__powertrain-verification-test-ver-2) . No The condition that caused this DTC to set is currently not present. Inspect the related wiring harness for a possible intermittent condition.

P0153-O2 SENSOR 2/1 SHORT PERFORMANCE

1. When Monitored : Start and drive vehicle greater than 32 km/h (20 MPH) and less than 89 km/h (55 MPH). Throttle open for a minimum 120 seconds. Coolant Temp greater than 70°C (158°F) Catalytic Converter Temperature greater than 600°C (1112°F).
2. Set Condition : The O2 sensor voltage switches only 11 times or less from lean to rich within 20 seconds during monitoring. Two Trip Fault.

For a complete Powertrain Control Module Circuit Diagram, refer to SCHEMATICS AND DIAGRAMS .

1. 1) PRE-DIAGNOSTIC CHECK OUT NOTE: Always perform diagnostics with a fully charged battery. NOTE: Check connectors - Clean/repair as necessary. Poor pin to terminal connections can set DTCs. NOTE: Check for applicable TSBs related to the problem. Turn the ignition on. With the scan tool, read PCM DTCs. Using the wiring diagram/schematic as a guide, inspect the wiring and connectors. Repair as necessary. Perform this procedure prior to symptom diagnosis. Continue Go to 2) .
2. 2) CHECK FOR CURRENT DTC NOTE: It is important to perform the diagnostics on the O2 Sensor that set the DTC. NOTE: Check for contaminates that may have damaged the O2 Sensor: contaminated fuel, unapproved silicone, oil and coolant. NOTE: If the PCM detects and stores a DTC, the PCM also stores the engine/vehicle operating conditions under which the DTC was set. Some of these conditions are displayed on the scan tool at the same time the DTC is displayed. NOTE: Before erasing stored DTCs, record these conditions. Attempting to duplicate these conditions may assist when checking for a DTC. Turn the ignition on. With the scan tool, erase PCM DTCs. NOTE: It maybe necessary to road test the vehicle for this DTC to set. With the scan tool, read PCM DTCs. Did this DTC set again? Yes Go to 3) . No Go to 6) .
3. 3) EXHAUST LEAK Start the engine. Inspect the exhaust system for leaks between the engine and the O2 Sensors. Are there any exhaust leaks? Yes Repair or replace the leaking exhaust parts as necessary. Refer to «REMOVAL»(/chrysler/crossfire/i-final-2008-2008/remont/exhaust/#exhaust-system__removal) . Perform «POWERTRAIN VERIFICATION TEST - VER 2»(/chrysler/crossfire/i-final-2008-2008/remont/testing-diagnostics/#dtcs-p1999-to-p2561-checking-fuel-delivery-hard-start-engine-cranks-but-does-not-start-powertrain-verification-tests__powertrain-verification-test-ver-2) . No Go to 4) .
4. 4) 2/1 O2 SENSOR SIGNAL CIRCUIT Turn the ignition off. Disconnect the 2/1 O2 Sensor harness connector. NOTE: Check connectors - Clean/repair as necessary. Turn the ignition on. Measure the voltage on the 2/1 O2 Sensor Signal circuit at the 2/1 O2 Sensor harness connector. Is the voltage approximately 0.47 volt? Yes Go to 5) . No Check the 2/1 O2 Sensor Signal circuit for damage, short to ground, open, or short to voltage. If OK, replace and program the Powertrain Control Module. Refer to «REMOVAL»(/chrysler/crossfire/i-final-2008-2008/remont/communication-devices/#electronic-control-modules-service-information) . Perform «POWERTRAIN VERIFICATION TEST - VER 2»(/chrysler/crossfire/i-final-2008-2008/remont/testing-diagnostics/#dtcs-p1999-to-p2561-checking-fuel-delivery-hard-start-engine-cranks-but-does-not-start-powertrain-verification-tests__powertrain-verification-test-ver-2) .
5. 5) SENSOR GROUND CIRCUIT With the ignition on. Measure the voltage on the Sensor Ground circuit at the 2/1 O2 Sensor harness connector. Is the voltage above 0.1 volt? Yes Check the Sensor Ground circuit for damage, short to ground, open, or short to voltage. If OK, replace and program the Powertrain Control Module. Refer to «REMOVAL»(/chrysler/crossfire/i-final-2008-2008/remont/communication-devices/#electronic-control-modules-service-information) . Perform «POWERTRAIN VERIFICATION TEST - VER 2»(/chrysler/crossfire/i-final-2008-2008/remont/testing-diagnostics/#dtcs-p1999-to-p2561-checking-fuel-delivery-hard-start-engine-cranks-but-does-not-start-powertrain-verification-tests__powertrain-verification-test-ver-2) . No Replace the Oxygen Sensor. Refer to «REMOVAL»(/chrysler/crossfire/i-final-2008-2008/remont/fuel-system/#fuel-system) . Perform «POWERTRAIN VERIFICATION TEST - VER 2»(/chrysler/crossfire/i-final-2008-2008/remont/testing-diagnostics/#dtcs-p1999-to-p2561-checking-fuel-delivery-hard-start-engine-cranks-but-does-not-start-powertrain-verification-tests__powertrain-verification-test-ver-2) .
6. 6) INTERMITTENT WIRING AND CONNECTORS The conditions necessary to set this DTC are not present at this time. NOTE: Check connectors - Clean/repair as necessary. Poor pin to terminal connections can set DTCs. Using the wiring diagram/schematic as a guide, inspect the wiring and connectors specific to this DTC. Wiggle the wires while checking for shorts and open circuits. NOTE: Check for any Technical Service Bulletins that may apply. Were there any problems found? Yes Repair as necessary. Perform «POWERTRAIN VERIFICATION TEST - VER 2»(/chrysler/crossfire/i-final-2008-2008/remont/testing-diagnostics/#dtcs-p1999-to-p2561-checking-fuel-delivery-hard-start-engine-cranks-but-does-not-start-powertrain-verification-tests__powertrain-verification-test-ver-2) . No The condition that caused this DTC to set is currently not present. Inspect the related wiring harness for a possible intermittent condition.

P0154-O2 SENSOR 2/1 CIRCUIT OPEN

1. When Monitored : With the engine running between 1000 and 2000 RPM, engine load between 15% to 50%, closed loop mode, the three way catalytic converter temperature is greater than 380°C (716°F), and the O2 sensor heater must be ON for at least 220 seconds to enable the signal inactive portion of the test.
2. Set Condition : O2 Sensor voltage is less than 0.15 volt for approximately 5 seconds. Signal stays at center: The O2 Sensor voltage stays between 0.4 and 0.6 volt for more than approximately 15 seconds after the O2 Sensor heater has been ON for at least 220 seconds.

For a complete Powertrain Control Module Circuit Diagram, refer to SCHEMATICS AND DIAGRAMS .

1. 1) CHECK FOR CURRENT DTC Turn the ignition on. With the scan tool, read PCM DTCs. Is this DTC present? Yes For complete diagnosis of this DTC, refer to «P0131-O2 SENSOR 1/1 CIRCUIT LOW»(/chrysler/crossfire/i-final-2008-2008/remont/testing-diagnostics/#dtcs-p0033-to-p0132) . No Go to 2) .
2. 2) INTERMITTENT WIRING AND CONNECTORS The conditions necessary to set this DTC are not present at this time. NOTE: Check connectors - Clean/repair as necessary. Poor pin to terminal connections can set DTCs. Using the wiring diagram/schematic as a guide, inspect the wiring and connectors specific to this DTC. Wiggle the wires while checking for shorts and open circuits. NOTE: Check for any Technical Service Bulletins that may apply. Were there any problems found? Yes Repair as necessary. Perform «POWERTRAIN VERIFICATION TEST - VER 2»(/chrysler/crossfire/i-final-2008-2008/remont/testing-diagnostics/#dtcs-p1999-to-p2561-checking-fuel-delivery-hard-start-engine-cranks-but-does-not-start-powertrain-verification-tests__powertrain-verification-test-ver-2) . No The condition that caused this DTC to set is currently not present. Inspect the related wiring harness for a possible intermittent condition.

Scheme 124

1. When Monitored : Engine Running and Heater duty cycle greater than 0%.
2. Set Condition : O2 Heater Temperature does not reach 575°C (959°F) within 90 seconds during monitoring conditions. Two Trip Fault.

For a complete Powertrain Control Module Circuit Diagram, refer to SCHEMATICS AND DIAGRAMS .

1. 1) CHECK FOR CURRENT DTC Turn the ignition on. With the scan tool, read PCM DTCs. Is this DTC present? Yes For complete diagnosis of this DTC, refer to «P0135-O2 SENSOR 1/1 HEATER CIRCUIT HIGH»(/chrysler/crossfire/i-final-2008-2008/remont/testing-diagnostics/#dtcs-p0133-to-p0153) . No Go to 2) .
2. 2) INTERMITTENT WIRING AND CONNECTORS The conditions necessary to set this DTC are not present at this time. NOTE: Check connectors - Clean/repair as necessary. Poor pin to terminal connections can set DTCs. Using the wiring diagram/schematic as a guide, inspect the wiring and connectors specific to this DTC. Wiggle the wires while checking for shorts and open circuits. NOTE: Check for any Technical Service Bulletins that may apply. Were there any problems found? Yes Repair as necessary. Perform «POWERTRAIN VERIFICATION TEST - VER 2»(/chrysler/crossfire/i-final-2008-2008/remont/testing-diagnostics/#dtcs-p1999-to-p2561-checking-fuel-delivery-hard-start-engine-cranks-but-does-not-start-powertrain-verification-tests__powertrain-verification-test-ver-2) . No The condition that caused this DTC to set is currently not present. Inspect the related wiring harness for a possible intermittent condition.

P0155-O2 SENSOR 2/1 HEATER CIRCUIT LOW

1. When Monitored : Engine Running and Heater duty cycle greater than 0%
2. Set Condition : The PCM detects the O2 Heater voltage is out of acceptable range. Below 0.0926 volt.

For a complete Powertrain Control Module Circuit Diagram, refer to SCHEMATICS AND DIAGRAMS .

1. 1) CHECK FOR CURRENT DTC Turn the ignition on. With the scan tool, read PCM DTCs. Is this DTC present? Yes For complete diagnosis of this DTC, refer to «P0135-O2 SENSOR 1/1 HEATER CIRCUIT LOW»(/chrysler/crossfire/i-final-2008-2008/remont/testing-diagnostics/#dtcs-p0133-to-p0153__p0135-o2-sensor-11-heater-circuit-low) . No Go to 2) .
2. 2) INTERMITTENT WIRING AND CONNECTORS The conditions necessary to set this DTC are not present at this time. NOTE: Check connectors - Clean/repair as necessary. Poor pin to terminal connections can set DTCs. Using the wiring diagram/schematic as a guide, inspect the wiring and connectors specific to this DTC. Wiggle the wires while checking for shorts and open circuits. NOTE: Check for any Technical Service Bulletins that may apply. Were there any problems found? Yes Repair as necessary. Perform «POWERTRAIN VERIFICATION TEST - VER 2»(/chrysler/crossfire/i-final-2008-2008/remont/testing-diagnostics/#dtcs-p1999-to-p2561-checking-fuel-delivery-hard-start-engine-cranks-but-does-not-start-powertrain-verification-tests__powertrain-verification-test-ver-2) . No The condition that caused this DTC to set is currently not present. Inspect the related wiring harness for a possible intermittent condition.

P0155-O2 SENSOR 2/1 HEATER CIRCUIT OPEN

1. When Monitored : Engine Running and Heater duty cycle greater than 0%.
2. Set Condition : O2 Heater Temperature does not reach 575°C (959°F) within 90 seconds during monitoring conditions. Two Trip Fault.

For a complete Powertrain Control Module Circuit Diagram, refer to SCHEMATICS AND DIAGRAMS .

1. 1) CHECK FOR CURRENT DTC Turn the ignition on. With the scan tool, read PCM DTCs. Is this DTC present? Yes For complete diagnosis of this DTC, refer to «P0135-O2 SENSOR 1/1 HEATER CIRCUIT HIGH»(/chrysler/crossfire/i-final-2008-2008/remont/testing-diagnostics/#dtcs-p0133-to-p0153) . No Go to 2) .
2. 2) INTERMITTENT WIRING AND CONNECTORS The conditions necessary to set this DTC are not present at this time. NOTE: Check connectors - Clean/repair as necessary. Poor pin to terminal connections can set DTCs. Using the wiring diagram/schematic as a guide, inspect the wiring and connectors specific to this DTC. Wiggle the wires while checking for shorts and open circuits. NOTE: Check for any Technical Service Bulletins that may apply. Were there any problems found? Yes Repair as necessary. Perform «POWERTRAIN VERIFICATION TEST - VER 2»(/chrysler/crossfire/i-final-2008-2008/remont/testing-diagnostics/#dtcs-p1999-to-p2561-checking-fuel-delivery-hard-start-engine-cranks-but-does-not-start-powertrain-verification-tests__powertrain-verification-test-ver-2) . No The condition that caused this DTC to set is currently not present. Inspect the related wiring harness for a possible intermittent condition.

P0155-O2 SENSOR 2/1 HEATER PERFORMANCE

1. When Monitored : Engine Running and Heater duty cycle greater than 0%.
2. Set Condition : O2 Heater Temperature does not reach 575°C (959°F) within 90 seconds during monitoring conditions. Two Trip Fault.

For a complete Powertrain Control Module Circuit Diagram, refer to SCHEMATICS AND DIAGRAMS .

1. 1) CHECK FOR CURRENT DTC Turn the ignition on. With the scan tool, read PCM DTCs. Is this DTC present? Yes For complete diagnosis of this DTC, refer to «P0135-O2 SENSOR 1/1 HEATER PERFORMANCE»(/chrysler/crossfire/i-final-2008-2008/remont/testing-diagnostics/#dtcs-p0133-to-p0153__p0135-o2-sensor-11-heater-performance) . No Go to 2) .
2. 2) INTERMITTENT WIRING AND CONNECTORS The conditions necessary to set this DTC are not present at this time. NOTE: Check connectors - Clean/repair as necessary. Poor pin to terminal connections can set DTCs. Using the wiring diagram/schematic as a guide, inspect the wiring and connectors specific to this DTC. Wiggle the wires while checking for shorts and open circuits. NOTE: Check for any Technical Service Bulletins that may apply. Were there any problems found? Yes Repair as necessary. Perform «POWERTRAIN VERIFICATION TEST - VER 2»(/chrysler/crossfire/i-final-2008-2008/remont/testing-diagnostics/#dtcs-p1999-to-p2561-checking-fuel-delivery-hard-start-engine-cranks-but-does-not-start-powertrain-verification-tests__powertrain-verification-test-ver-2) . No The condition that caused this DTC to set is currently not present. Inspect the related wiring harness for a possible intermittent condition.

P0161-O2 SENSOR 2/2 HEATER CIRCUIT HIGH

1. When Monitored : Engine Running and Heater duty cycle greater than 0%.
2. Set Condition : O2 Heater Temperature does not reach 575°C (959°F) within 90 seconds during monitoring conditions. Two Trip Fault.

For a complete Powertrain Control Module Circuit Diagram, refer to SCHEMATICS AND DIAGRAMS .

1. 1) CHECK FOR CURRENT DTC Turn the ignition on. With the scan tool, read PCM DTCs. Is this DTC present? Yes For complete diagnosis of this DTC, refer to «P0135-O2 SENSOR 1/1 HEATER CIRCUIT HIGH»(/chrysler/crossfire/i-final-2008-2008/remont/testing-diagnostics/#dtcs-p0133-to-p0153) . No Go to 2) .
2. 2) INTERMITTENT WIRING AND CONNECTORS The conditions necessary to set this DTC are not present at this time. NOTE: Check connectors - Clean/repair as necessary. Poor pin to terminal connections can set DTCs. Using the wiring diagram/schematic as a guide, inspect the wiring and connectors specific to this DTC. Wiggle the wires while checking for shorts and open circuits. NOTE: Check for any Technical Service Bulletins that may apply. Were there any problems found? Yes Repair as necessary. Perform «POWERTRAIN VERIFICATION TEST - VER 2»(/chrysler/crossfire/i-final-2008-2008/remont/testing-diagnostics/#dtcs-p1999-to-p2561-checking-fuel-delivery-hard-start-engine-cranks-but-does-not-start-powertrain-verification-tests__powertrain-verification-test-ver-2) . No The condition that caused this DTC to set is currently not present. Inspect the related wiring harness for a possible intermittent condition.

P0161-O2 SENSOR 2/2 HEATER CIRCUIT LOW

1. When Monitored : Engine Running and Heater duty cycle greater than 0%
2. Set Condition : The PCM detects the O2 Heater voltage is out of acceptable range. Below 0.0926 volt.

For a complete Powertrain Control Module Circuit Diagram, refer to SCHEMATICS AND DIAGRAMS .

1. 1) CHECK FOR CURRENT DTC Turn the ignition on. With the scan tool, read PCM DTCs. Is this DTC present? Yes For complete diagnosis of this DTC, refer to «P0135-O2 SENSOR 1/1 HEATER CIRCUIT LOW»(/chrysler/crossfire/i-final-2008-2008/remont/testing-diagnostics/#dtcs-p0133-to-p0153__p0135-o2-sensor-11-heater-circuit-low) . No Go to 2) .
2. 2) INTERMITTENT WIRING AND CONNECTORS The conditions necessary to set this DTC are not present at this time. NOTE: Check connectors - Clean/repair as necessary. Poor pin to terminal connections can set DTCs. Using the wiring diagram/schematic as a guide, inspect the wiring and connectors specific to this DTC. Wiggle the wires while checking for shorts and open circuits. NOTE: Check for any Technical Service Bulletins that may apply. Were there any problems found? Yes Repair as necessary. Perform «POWERTRAIN VERIFICATION TEST - VER 2»(/chrysler/crossfire/i-final-2008-2008/remont/testing-diagnostics/#dtcs-p1999-to-p2561-checking-fuel-delivery-hard-start-engine-cranks-but-does-not-start-powertrain-verification-tests__powertrain-verification-test-ver-2) . No The condition that caused this DTC to set is currently not present. Inspect the related wiring harness for a possible intermittent condition.

P0161-O2 SENSOR 2/2 HEATER CIRCUIT OPEN

1. When Monitored : Engine Running and Heater duty cycle greater than 0%.
2. Set Condition : O2 Heater Temperature does not reach 575°C (959°F) within 90 second during monitoring conditions. Two Trip Fault.

For a complete Powertrain Control Module Circuit Diagram, refer to SCHEMATICS AND DIAGRAMS .

1. 1) CHECK FOR CURRENT DTC Turn the ignition on. With the scan tool, read PCM DTCs. Is this DTC present? Yes For complete diagnosis of this DTC, refer to «P0135-O2 SENSOR 1/1 HEATER CIRCUIT HIGH»(/chrysler/crossfire/i-final-2008-2008/remont/testing-diagnostics/#dtcs-p0133-to-p0153) . No Go to 2) .
2. 2) INTERMITTENT WIRING AND CONNECTORS The conditions necessary to set this DTC are not present at this time. NOTE: Check connectors - Clean/repair as necessary. Poor pin to terminal connections can set DTCs. Using the wiring diagram/schematic as a guide, inspect the wiring and connectors specific to this DTC. Wiggle the wires while checking for shorts and open circuits. NOTE: Check for any Technical Service Bulletins that may apply. Were there any problems found? Yes Repair as necessary. Perform «POWERTRAIN VERIFICATION TEST - VER 2»(/chrysler/crossfire/i-final-2008-2008/remont/testing-diagnostics/#dtcs-p1999-to-p2561-checking-fuel-delivery-hard-start-engine-cranks-but-does-not-start-powertrain-verification-tests__powertrain-verification-test-ver-2) . No The condition that caused this DTC to set is currently not present. Inspect the related wiring harness for a possible intermittent condition.

P0161-O2 SENSOR 2/2 HEATER PERFORMANCE

1. When Monitored : Engine Running and Heater duty cycle greater than 0%.
2. Set Condition : O2 Heater Temperature does not reach 575°C (959°F) within 90 seconds during monitoring conditions. Two Trip Fault.

For a complete Powertrain Control Module Circuit Diagram, refer to SCHEMATICS AND DIAGRAMS .

1. 1) CHECK FOR CURRENT DTC Turn the ignition on. With the scan tool, read PCM DTCs. Is this DTC present? Yes For complete diagnosis of this DTC, refer to «P0135-O2 SENSOR 1/1 HEATER PERFORMANCE»(/chrysler/crossfire/i-final-2008-2008/remont/testing-diagnostics/#dtcs-p0133-to-p0153__p0135-o2-sensor-11-heater-performance) . No Go to 2) .
2. 2) INTERMITTENT WIRING AND CONNECTORS The conditions necessary to set this DTC are not present at this time. NOTE: Check connectors - Clean/repair as necessary. Poor pin to terminal connections can set DTCs. Using the wiring diagram/schematic as a guide, inspect the wiring and connectors specific to this DTC. Wiggle the wires while checking for shorts and open circuits. NOTE: Check for any Technical Service Bulletins that may apply. Were there any problems found? Yes Repair as necessary. Perform «POWERTRAIN VERIFICATION TEST - VER 2»(/chrysler/crossfire/i-final-2008-2008/remont/testing-diagnostics/#dtcs-p1999-to-p2561-checking-fuel-delivery-hard-start-engine-cranks-but-does-not-start-powertrain-verification-tests__powertrain-verification-test-ver-2) . No The condition that caused this DTC to set is currently not present. Inspect the related wiring harness for a possible intermittent condition.

Scheme 125

Scheme 126

1. When Monitored : With the engine running in closed loop mode, the ambient/battery temperature above -7°C (20°F), altitude below 2590m (8500 ft). and fuel level greater than 15%.
2. Set Condition : If the PCM multiplies short term compensation by long term adaptive and a certain percentage is exceeded for two trips, the MIL illuminates and a trouble code is stored.

For a complete Powertrain Control Module Circuit Diagram, refer to SCHEMATICS AND DIAGRAMS .

1. 1) CHECK FOR CURRENT DTC Turn the ignition on. With the scan tool, read PCM DTCs. Is this DTC present? Yes For complete diagnosis of this DTC, refer to «P0171-FUEL SYSTEM 1/1 RICH CONTROL OVER LIMIT (AT LOAD)»(/chrysler/crossfire/i-final-2008-2008/remont/testing-diagnostics/#dtcs-p0153-to-p0200__p0171-fuel-system-11-rich-control-over) . No Go to 2) .
2. 2) INTERMITTENT WIRING AND CONNECTORS The conditions necessary to set this DTC are not present at this time. NOTE: Check connectors - Clean/repair as necessary. Poor pin to terminal connections can set DTCs. Using the wiring diagram/schematic as a guide, inspect the wiring and connectors specific to this DTC. Wiggle the wires while checking for shorts and open circuits. NOTE: Check for any Technical Service Bulletins that may apply. Were there any problems found? Yes Repair as necessary. Perform «POWERTRAIN VERIFICATION TEST - VER 2»(/chrysler/crossfire/i-final-2008-2008/remont/testing-diagnostics/#dtcs-p1999-to-p2561-checking-fuel-delivery-hard-start-engine-cranks-but-does-not-start-powertrain-verification-tests__powertrain-verification-test-ver-2) . No The condition that caused this DTC to set is currently not present. Inspect the related wiring harness for a possible intermittent condition.

P0171-FUEL SYSTEM 1/1 RICH CONTROL OVER LIMIT (AT LOAD)

1. When Monitored : With the engine running in closed loop mode, the ambient/battery temperature above -7°C (20°F), altitude below 2590m (8500 ft). and fuel level greater than 15%.
2. Set Condition : If the PCM multiplies short term compensation by long term adaptive and a certain percentage is exceeded for two trips, the MIL illuminates and a trouble code is stored.

For a complete Powertrain Control Module Circuit Diagram, refer to SCHEMATICS AND DIAGRAMS .

Scheme 127

Scheme 128

1. 1) PRE-DIAGNOSTIC CHECK OUT NOTE: Always perform diagnostics with a fully charged battery. NOTE: Check connectors - Clean/repair as necessary. Poor pin to terminal connections can set DTCs. NOTE: Check for applicable TSBs related to the problem. Turn the ignition on. With the scan tool, read PCM DTCs. Using the wiring diagram/schematic as a guide, inspect the wiring and connectors. Repair as necessary. Perform this procedure prior to symptom diagnosis. Continue Go to 2) .
2. 2) CHECK FOR CURRENT DTC NOTE: Check for contaminates that may have damaged the O2 Sensor: contaminated fuel, unapproved silicone, oil and coolant. NOTE: If the PCM detects and stores a DTC, the PCM also stores the engine/vehicle operating conditions under which the DTC was set. Some of these conditions are displayed on the scan tool at the same time the DTC is displayed. NOTE: Before erasing stored DTCs, record these conditions. Attempting to duplicate these conditions may assist when checking for a DTC. Turn the ignition on. With the scan tool, erase PCM DTCs. NOTE: It maybe necessary to road test the vehicle for this DTC to set. With the scan tool, read PCM DTCs. Did this DTC set again? Yes Go to 3) . No Go to 12) .
3. 3) CHECKING FUEL PRESSURE WARNING: THE FUEL SYSTEM IS UNDER A CONSTANT PRESSURE (EVEN WITH THE ENGINE OFF). BEFORE TESTING OR SERVICING ANY FUEL SYSTEM HOSE, FITTING OR LINE, THE FUEL SYSTEM PRESSURE MUST BE RELEASED. Turn the ignition off. Install a fuel pressure gauge. Turn the ignition on. With the scan tool, actuate the Fuel Pump and observe the fuel pressure gauge. NOTE: Fuel pressure specification is 3.7 to 4.2 bar (54 to 61 psi). Turn the ignition off. CAUTION: Stop All Actuations. Choose a conclusion that best matches your fuel pressure reading. Within Specification Go to 4) . Above Specification Replace the fuel filter/pressure regulator. Refer to «REMOVAL»(/chrysler/crossfire/i-final-2008-2008/remont/fuel-system/#fuel-system) . Perform «POWERTRAIN VERIFICATION TEST - VER 2»(/chrysler/crossfire/i-final-2008-2008/remont/testing-diagnostics/#dtcs-p1999-to-p2561-checking-fuel-delivery-hard-start-engine-cranks-but-does-not-start-powertrain-verification-tests__powertrain-verification-test-ver-2) .
4. 4) O2 SENSOR OPERATION Start the engine. Allow the engine to reach normal operating temperature. With the scan tool, read the O2 Sensor voltage. Is the voltage switching between 0.4 and 0.6 volt? Yes Go to 5) . No Go to 9) .
5. 5) EVAP PURGE SOLENOID OPERATION Turn the ignition off. Disconnect the hoses at the EVAP Purge Solenoid. NOTE: Check connectors - Clean/repair as necessary. Using a hand vacuum pump, apply 339 mbar (10 in. Hg) of vacuum to the EVAP Purge Solenoid vacuum source port on the component side. Did the EVAP Purge Solenoid hold vacuum? Yes Go to 6) . No Replace the EVAP Purge Solenoid. Refer to «REMOVAL»(/chrysler/crossfire/i-final-2008-2008/remont/emission-applications/#emissions-control-system) . Perform «POWERTRAIN VERIFICATION TEST - VER 2»(/chrysler/crossfire/i-final-2008-2008/remont/testing-diagnostics/#dtcs-p1999-to-p2561-checking-fuel-delivery-hard-start-engine-cranks-but-does-not-start-powertrain-verification-tests__powertrain-verification-test-ver-2) .
6. 6) MAP SENSOR OPERATION With the ignition off. Connect a Vacuum Gauge to a Manifold Vacuum source. Start the engine. Allow the engine to idle. NOTE: If engine will not idle, maintain a constant RPM above idle. With the scan tool in Sensors, read the MAP Sensor vacuum value. Is the scan tool reading within 33.9 mbar (1 in. Hg) of the Vacuum Gauge reading? Yes Go to 7) . No Replace the Manifold Absolute Pressure Sensor. Refer to «REMOVAL»(/chrysler/crossfire/i-final-2008-2008/remont/fuel-system/#fuel-system) . Perform «POWERTRAIN VERIFICATION TEST - VER 2»(/chrysler/crossfire/i-final-2008-2008/remont/testing-diagnostics/#dtcs-p1999-to-p2561-checking-fuel-delivery-hard-start-engine-cranks-but-does-not-start-powertrain-verification-tests__powertrain-verification-test-ver-2) .
7. 7) ECT SENSOR OPERATION NOTE: For this test to be valid, the thermostat must be operating correctly. NOTE: This test works best if performed on a cold engine (cold soak). Turn the ignition off until the engine is cold. Turn the ignition on. With the scan tool, read the Engine Coolant Temperature Sensor value. If the engine was allowed to sit overnight (cold soak), the temperature value should be a sensible value that is somewhere close to the ambient temperature. NOTE: If engine coolant temperature is above 82°C (180°F), allow the engine to cool until 65°C (150°F) is reached. Start the Engine. During engine warm-up, monitor the Engine Coolant Temperature value. The temperature value change should be a smooth transition from start up to normal operating temperature 82°C (180°F). The value should reach at least 82°C (180°F). Did the Engine Coolant Temperature value increase with a smooth transition and did it reach at least 82°C (180°F)? Yes Go to 8) . No Replace the Engine Coolant Temperature Sensor. Refer to «REMOVAL»(/chrysler/crossfire/i-final-2008-2008/remont/accessory-drive-belts/#engine-cooling-system-automatic-transmission-cooling-system) . Perform «POWERTRAIN VERIFICATION TEST - VER 2»(/chrysler/crossfire/i-final-2008-2008/remont/testing-diagnostics/#dtcs-p1999-to-p2561-checking-fuel-delivery-hard-start-engine-cranks-but-does-not-start-powertrain-verification-tests__powertrain-verification-test-ver-2) .
8. 8) ENGINE MECHANICAL PROBLEM Turn the ignition off. Check for any of the following conditions/mechanical problems. AIR INDUCTION SYSTEM - must be free from restrictions. ENGINE VACUUM - must be at least 440 mbar (13 in. Hg) in neutral. ENGINE VALVE TIMING - must be within specifications. ENGINE COMPRESSION - must be within specifications. ENGINE EXHAUST SYSTEM - must be free of any restrictions or leaks. TORQUE CONVERTER STALL SPEED - must be within specifications. POWER BRAKE BOOSTER - must not have any internal vacuum leaks. FUEL - must be free of contamination. FUEL INJECTOR - must not be plugged or restricted; harness connectors must be connected to the correct injectors. Are there any engine mechanical problems? Yes Repair as necessary. Perform «POWERTRAIN VERIFICATION TEST - VER 2»(/chrysler/crossfire/i-final-2008-2008/remont/testing-diagnostics/#dtcs-p1999-to-p2561-checking-fuel-delivery-hard-start-engine-cranks-but-does-not-start-powertrain-verification-tests__powertrain-verification-test-ver-2) . No Go to 12) .
9. 9) O2 SENSOR Turn the ignition off. Disconnect the O2 Sensor harness connector. NOTE: Check connectors - Clean/repair as necessary. Turn the ignition on. With the scan tool, monitor the O2 Sensor voltage. The O2 Sensor voltage should read 0.47 volt on the scan tool with the connector disconnected. Connect a jumper wire between the O2 Sensor Signal circuit and the Sensor Ground circuit in the O2 Sensor harness connector. NOTE: The voltage should drop from 0.47 volt down to 0.0 volt with the jumper wire connected. Did the O2 Sensor voltage drop from 0.47 volt to 0.0 volt? Yes Replace the Oxygen Sensor. Refer to «REMOVAL»(/chrysler/crossfire/i-final-2008-2008/remont/fuel-system/#fuel-system) . Perform «POWERTRAIN VERIFICATION TEST - VER 2»(/chrysler/crossfire/i-final-2008-2008/remont/testing-diagnostics/#dtcs-p1999-to-p2561-checking-fuel-delivery-hard-start-engine-cranks-but-does-not-start-powertrain-verification-tests__powertrain-verification-test-ver-2) . No Go to 10) .
10. 10) O2 SIGNAL CIRCUIT With the ignition on. Measure the voltage of the O2 Sensor Signal circuit at the O2 Sensor harness connector. Is the voltage above 0.47 volt? Yes Check the O2 Signal circuit for damage, short to ground, open, or short to voltage. Inspect the O2 Sensor harness connector and the PCM harness connector. If OK, replace the Powertrain Control Module. Refer to «REMOVAL»(/chrysler/crossfire/i-final-2008-2008/remont/communication-devices/#electronic-control-modules-service-information) . Perform «POWERTRAIN VERIFICATION TEST - VER 2»(/chrysler/crossfire/i-final-2008-2008/remont/testing-diagnostics/#dtcs-p1999-to-p2561-checking-fuel-delivery-hard-start-engine-cranks-but-does-not-start-powertrain-verification-tests__powertrain-verification-test-ver-2) . No Go to 11) .
11. 11) O2 SENSOR GROUND CIRCUIT With the ignition on. Measure the voltage of the O2 Sensor Ground circuit at the O2 Sensor harness connector. Is the voltage below 0.1 volt? Yes Before continuing, check the PCM harness connector terminals for corrosion, damage, or terminal push out. Repair as necessary. Replace and program the Powertrain Control Module. Refer to «REMOVAL»(/chrysler/crossfire/i-final-2008-2008/remont/communication-devices/#electronic-control-modules-service-information) . Perform «POWERTRAIN VERIFICATION TEST - VER 2»(/chrysler/crossfire/i-final-2008-2008/remont/testing-diagnostics/#dtcs-p1999-to-p2561-checking-fuel-delivery-hard-start-engine-cranks-but-does-not-start-powertrain-verification-tests__powertrain-verification-test-ver-2) . No Check the O2 Sensor Ground circuit for damage, short to ground, open, or short to voltage. Inspect the O2 Sensor harness connector and the PCM harness connector. If OK, replace and program the Powertrain Control Module. Refer to «REMOVAL»(/chrysler/crossfire/i-final-2008-2008/remont/communication-devices/#electronic-control-modules-service-information) . Perform «POWERTRAIN VERIFICATION TEST - VER 2»(/chrysler/crossfire/i-final-2008-2008/remont/testing-diagnostics/#dtcs-p1999-to-p2561-checking-fuel-delivery-hard-start-engine-cranks-but-does-not-start-powertrain-verification-tests__powertrain-verification-test-ver-2) .
12. 12) INTERMITTENT WIRING AND CONNECTORS The condition that caused this DTC to set is currently not present. Inspect the related wiring harness for a possible intermittent condition. NOTE: Check connectors - Clean/repair as necessary. Poor pin to terminal connections can set DTCs. Using the wiring diagram/schematic as a guide, inspect the wiring and connectors specific to this DTC. Wiggle the wires while checking for shorts and open circuits. NOTE: Check for any Technical Service Bulletins that may apply. Were there any problems found? Yes Repair as necessary. Perform «POWERTRAIN VERIFICATION TEST - VER 2»(/chrysler/crossfire/i-final-2008-2008/remont/testing-diagnostics/#dtcs-p1999-to-p2561-checking-fuel-delivery-hard-start-engine-cranks-but-does-not-start-powertrain-verification-tests__powertrain-verification-test-ver-2) . No The condition that caused this DTC to set is currently not present. Inspect the related wiring harness for a possible intermittent condition.

Scheme 129

1. When Monitored : With the engine running in closed loop mode, the ambient/battery temperature above -7°C (20°F), altitude below 2590m (8500 ft). and fuel level greater than 15%.
2. Set Condition : If the PCM multiplies short term compensation by long term adaptive and a certain percentage is exceeded for two trips, the MIL illuminates and a trouble code is stored.

For a complete Powertrain Control Module Circuit Diagram, refer to SCHEMATICS AND DIAGRAMS .

1. 1) CHECK FOR CURRENT DTC Turn the ignition on. With the scan tool, read PCM DTCs. Is this DTC present? Yes For complete diagnosis of this DTC, refer to «P0172-FUEL SYSTEM 1/1 LEAN CONTROL BELOW LIMIT (AT LOAD)»(/chrysler/crossfire/i-final-2008-2008/remont/testing-diagnostics/#dtcs-p0153-to-p0200__p0172-fuel-system-11-lean-control-below) . No Go to 2) .
2. 2) INTERMITTENT WIRING AND CONNECTORS The conditions necessary to set this DTC are not present at this time. NOTE: Check connectors - Clean/repair as necessary. Poor pin to terminal connections can set DTCs. Using the wiring diagram/schematic as a guide, inspect the wiring and connectors specific to this DTC. Wiggle the wires while checking for shorts and open circuits. NOTE: Check for any Technical Service Bulletins that may apply. Were there any problems found? Yes Repair as necessary. Perform «POWERTRAIN VERIFICATION TEST - VER 2»(/chrysler/crossfire/i-final-2008-2008/remont/testing-diagnostics/#dtcs-p1999-to-p2561-checking-fuel-delivery-hard-start-engine-cranks-but-does-not-start-powertrain-verification-tests__powertrain-verification-test-ver-2) . No The condition that caused this DTC to set is currently not present. Inspect the related wiring harness for a possible intermittent condition.

P0172-FUEL SYSTEM 1/1 LEAN CONTROL BELOW LIMIT (AT IDLE)

1. When Monitored : With the engine running in closed loop mode, the ambient/battery temperature above -7°C (20°F), altitude below 2590m (8500 ft). and fuel level greater than 15%.
2. Set Condition : If the PCM multiplies short term compensation by long term adaptive and a certain percentage is exceeded for two trips, the MIL illuminates and a trouble code is stored.

For a complete Powertrain Control Module Circuit Diagram, refer to SCHEMATICS AND DIAGRAMS .

1. 1) CHECK FOR CURRENT DTC Turn the ignition on. With the scan tool, read PCM DTCs. Is this DTC present? Yes For complete diagnosis of this DTC, refer to «P0172-FUEL SYSTEM 1/1 LEAN CONTROL BELOW LIMIT (AT LOAD)»(/chrysler/crossfire/i-final-2008-2008/remont/testing-diagnostics/#dtcs-p0153-to-p0200__p0172-fuel-system-11-lean-control-below) . No Go to 2) .
2. 2) INTERMITTENT WIRING AND CONNECTORS The conditions necessary to set this DTC are not present at this time. NOTE: Check connectors - Clean/repair as necessary. Poor pin to terminal connections can set DTCs. Using the wiring diagram/schematic as a guide, inspect the wiring and connectors specific to this DTC. Wiggle the wires while checking for shorts and open circuits. NOTE: Check for any Technical Service Bulletins that may apply. Were there any problems found? Yes Repair as necessary. Perform «POWERTRAIN VERIFICATION TEST - VER 2»(/chrysler/crossfire/i-final-2008-2008/remont/testing-diagnostics/#dtcs-p1999-to-p2561-checking-fuel-delivery-hard-start-engine-cranks-but-does-not-start-powertrain-verification-tests__powertrain-verification-test-ver-2) . No The condition that caused this DTC to set is currently not present. Inspect the related wiring harness for a possible intermittent condition.

P0172-FUEL SYSTEM 1/1 LEAN CONTROL BELOW LIMIT (AT LOAD)

1. When Monitored : With the engine running in closed loop mode, the ambient/battery temperature above -7°C (20°F), altitude below 2590m (8500 ft). and fuel level greater than 15%.
2. Set Condition : If the PCM multiplies short term compensation by long term adaptive and a certain percentage is exceeded for two trips, the MIL illuminates and a trouble code is stored.

For a complete Powertrain Control Module Circuit Diagram, refer to SCHEMATICS AND DIAGRAMS .

1. 1) PRE-DIAGNOSTIC CHECK OUT NOTE: Always perform diagnostics with a fully charged battery. NOTE: Check connectors - Clean/repair as necessary. Poor pin to terminal connections can set DTCs. NOTE: Check for applicable TSBs related to the problem. Turn the ignition on. With the scan tool, read PCM DTCs. Using the wiring diagram/schematic as a guide, inspect the wiring and connectors. Repair as necessary. Perform this procedure prior to symptom diagnosis. Continue Go to 2) .
2. 2) CHECK FOR CURRENT DTC NOTE: Check for contaminates that may have damaged the O2 Sensor: contaminated fuel, unapproved silicone, oil and coolant. NOTE: Diagnose any Misfire, Throttle Body, or Accelerator Pedal Position Sensor DTC(s) first, if set along with the fuel system DTC. NOTE: If the PCM detects and stores a DTC, the PCM also stores the engine/vehicle operating conditions under which the DTC was set. Some of these conditions are displayed on the scan tool at the same time the DTC is displayed. NOTE: Before erasing stored DTCs, record these conditions. Attempting to duplicate these conditions may assist when checking for a DTC. Turn the ignition on. With the scan tool, erase PCM DTCs. NOTE: It maybe necessary to road test the vehicle for this DTC to set. With the scan tool, read PCM DTCs. Did this DTC set again? Yes Go to 3) . No Go to 13) .
3. 3) CHECKING FUEL PRESSURE WARNING: THE FUEL SYSTEM IS UNDER A CONSTANT PRESSURE (EVEN WITH THE ENGINE OFF). BEFORE TESTING OR SERVICING ANY FUEL SYSTEM HOSE, FITTING OR LINE, THE FUEL SYSTEM PRESSURE MUST BE RELEASED. Turn the ignition off. Install a fuel pressure gauge. Turn the ignition on. With the scan tool, actuate the Fuel Pump and observe the fuel pressure gauge. NOTE: Fuel pressure specification is 3.7 to 4.2 bar (54 to 61 psi). Turn the ignition off. CAUTION: Stop All Actuations. Choose a conclusion that best matches your fuel pressure reading. Within Specification Go to 4) . Below Specification Go to 12) .
4. 4) O2 SENSOR OPERATION Start the engine. Allow the engine to reach normal operating temperature. With the scan tool, read the O2 Sensor voltage. Is the voltage switching between 0.4 and 0.6 volt? Yes Go to 5) . No Go to 9) .
5. 5) O2 SENSOR HEATER OPERATION Turn the ignition off. NOTE: Allow the O2 Sensor to cool down before continuing the test. Raising the hood may help in reducing under hood temperatures. Connect a jumper wire between ground and the Oxygen Sensor Heater Control circuit at the PCM harness connector leaving the harness connector connected to the PCM. Turn the ignition on. With the scan tool, monitor O2 Sensor voltage for at least 2 minutes. CAUTION: Remove the jumper wire after this Step is complete. Does the voltage stay above 0.47 volt? Yes Replace the Oxygen Sensor. Refer to «REMOVAL»(/chrysler/crossfire/i-final-2008-2008/remont/fuel-system/#fuel-system) . Perform «POWERTRAIN VERIFICATION TEST - VER 2»(/chrysler/crossfire/i-final-2008-2008/remont/testing-diagnostics/#dtcs-p1999-to-p2561-checking-fuel-delivery-hard-start-engine-cranks-but-does-not-start-powertrain-verification-tests__powertrain-verification-test-ver-2) . No Go to 6) .
6. 6) MAP SENSOR OPERATION Connect a Vacuum Gauge to a Manifold Vacuum source. Start the engine. Allow the engine to idle. NOTE: If engine will not idle, maintain a constant RPM above idle. With the scan tool in Sensors, read the MAP Sensor vacuum value. Is the scan tool reading within 33.9 mbar (1 in. Hg) of the Vacuum Gauge reading? Yes Go to 7) . No Replace the Manifold Absolute Pressure Sensor. Refer to «REMOVAL»(/chrysler/crossfire/i-final-2008-2008/remont/fuel-system/#fuel-system) . Perform «POWERTRAIN VERIFICATION TEST - VER 2»(/chrysler/crossfire/i-final-2008-2008/remont/testing-diagnostics/#dtcs-p1999-to-p2561-checking-fuel-delivery-hard-start-engine-cranks-but-does-not-start-powertrain-verification-tests__powertrain-verification-test-ver-2) .
7. 7) ECT SENSOR OPERATION NOTE: For this test to be valid, the thermostat must be operating correctly. NOTE: This test works best if performed on a cold engine (cold soak) Turn the ignition on. With the scan tool, read the Engine Coolant Temperature (ECT) Sensor value. If the engine was allowed to sit overnight (cold soak), the temperature value should be a sensible value that is somewhere close to the ambient temperature. NOTE: If engine coolant temperature is above 82°C (180°F), allow the engine to cool until 65°C (150°F) is reached. Start the Engine. During engine warm-up, monitor the ECT Sensor value. The temperature value change should be a smooth transition from start up to normal operating temperature 82°C (180°F). The value should reach at least 82°C (180°F). Did the Engine Coolant Temperature value increase with a smooth transition and did it reach at least 82°C (180°F)? Yes Go to 8) . No Replace the Engine Coolant Temperature Sensor. Refer to «REMOVAL»(/chrysler/crossfire/i-final-2008-2008/remont/accessory-drive-belts/#engine-cooling-system-automatic-transmission-cooling-system) . Perform «POWERTRAIN VERIFICATION TEST - VER 2»(/chrysler/crossfire/i-final-2008-2008/remont/testing-diagnostics/#dtcs-p1999-to-p2561-checking-fuel-delivery-hard-start-engine-cranks-but-does-not-start-powertrain-verification-tests__powertrain-verification-test-ver-2) .
8. 8) ENGINE MECHANICAL PROBLEM Check for any of the following conditions/mechanical problems. AIR INDUCTION SYSTEM - must be free from leaks. ENGINE VACUUM - must be at least 440 mbar (13 in. Hg) in neutral ENGINE VALVE TIMING - must be within specifications ENGINE COMPRESSION - must be within specifications ENGINE EXHAUST SYSTEM - must be free of any restrictions or leaks. ENGINE CRANKCASE VENT SYSTEM - must flow freely TORQUE CONVERTER STALL SPEED - must be within specifications POWER BRAKE BOOSTER - must not have any internal vacuum leaks. FUEL - must be free of contamination FUEL INJECTOR - must not be plugged or restricted; harness connectors must be connected to the correct injectors. Are there any engine mechanical problems? Yes Repair as necessary. Perform «POWERTRAIN VERIFICATION TEST - VER 2»(/chrysler/crossfire/i-final-2008-2008/remont/testing-diagnostics/#dtcs-p1999-to-p2561-checking-fuel-delivery-hard-start-engine-cranks-but-does-not-start-powertrain-verification-tests__powertrain-verification-test-ver-2) . No Go to 13) .
9. 9) O2 SENSOR Turn the ignition off. Disconnect the O2 Sensor harness connector. NOTE: Check connectors - Clean/repair as necessary. Turn the ignition on. With the scan tool, monitor the O2 Sensor voltage. NOTE: The O2 Sensor voltage should read 0.47 volt on the scan tool with the harness connector disconnected. Connect a jumper wire between the O2 Sensor Signal circuit and the Sensor Ground circuit at the O2 Sensor harness connector. NOTE: The voltage should drop from 0.47 volt down to 0.0 volt with the jumper wire connected. Did the O2 Sensor voltage drop from 0.47 volt to 0.0 volt? Yes Replace the Oxygen Sensor. Refer to «REMOVAL»(/chrysler/crossfire/i-final-2008-2008/remont/fuel-system/#fuel-system) . Perform «POWERTRAIN VERIFICATION TEST - VER 2»(/chrysler/crossfire/i-final-2008-2008/remont/testing-diagnostics/#dtcs-p1999-to-p2561-checking-fuel-delivery-hard-start-engine-cranks-but-does-not-start-powertrain-verification-tests__powertrain-verification-test-ver-2) . No Go to 10) .
10. 10) O2 SENSOR SIGNAL CIRCUIT With the ignition on. With the scan tool, monitor the O2 Sensor voltage. Is the voltage below 0.45 volt? Yes Go to 11) . No Check the O2 Sensor Signal circuit for a short to ground, open, or short to voltage. Inspect the O2 Sensor harness connector and the PCM harness connector. If OK, replace and program the Powertrain Control Module in accordance with the Service Information. Refer to «REMOVAL»(/chrysler/crossfire/i-final-2008-2008/remont/communication-devices/#electronic-control-modules-service-information) . Perform «POWERTRAIN VERIFICATION TEST - VER 2»(/chrysler/crossfire/i-final-2008-2008/remont/testing-diagnostics/#dtcs-p1999-to-p2561-checking-fuel-delivery-hard-start-engine-cranks-but-does-not-start-powertrain-verification-tests__powertrain-verification-test-ver-2) .
11. 11) SENSOR GROUND CIRCUIT With the ignition on. Measure the voltage of the Sensor Ground circuit at the O2 Sensor harness connector. Is the voltage below 0.1 volt? Yes Check the fuel system for contaminates. Also, check the exhaust system for any leaks. Refer to «INSPECTION»(/chrysler/crossfire/i-final-2008-2008/remont/exhaust/#exhaust-system__inspection) . Perform «POWERTRAIN VERIFICATION TEST - VER 2»(/chrysler/crossfire/i-final-2008-2008/remont/testing-diagnostics/#dtcs-p1999-to-p2561-checking-fuel-delivery-hard-start-engine-cranks-but-does-not-start-powertrain-verification-tests__powertrain-verification-test-ver-2) . No Check the Sensor Ground circuit for a short to ground, open, or short to voltage. Inspect the O2 Sensor harness connector and the PCM harness connector. If OK, replace and program the Powertrain Control Module in accordance with the Service Information. Refer to «REMOVAL»(/chrysler/crossfire/i-final-2008-2008/remont/communication-devices/#electronic-control-modules-service-information) . Perform «POWERTRAIN VERIFICATION TEST - VER 2»(/chrysler/crossfire/i-final-2008-2008/remont/testing-diagnostics/#dtcs-p1999-to-p2561-checking-fuel-delivery-hard-start-engine-cranks-but-does-not-start-powertrain-verification-tests__powertrain-verification-test-ver-2) .
12. 12) FUEL PUMP INLET STRAINER WARNING: THE FUEL SYSTEM IS UNDER A CONSTANT PRESSURE (EVEN WITH THE ENGINE OFF). BEFORE TESTING OR SERVICING ANY FUEL SYSTEM HOSE, FITTING OR LINE, THE FUEL SYSTEM PRESSURE MUST BE RELEASED With the ignition off. Remove and inspect the Fuel Pump Inlet Strainer. Is the Fuel Pump Inlet Strainer plugged? Yes Replace the Fuel Pump Inlet Strainer. Refer to «REMOVAL»(/chrysler/crossfire/i-final-2008-2008/remont/fuel-system/#fuel-system) . Perform «POWERTRAIN VERIFICATION TEST - VER 2»(/chrysler/crossfire/i-final-2008-2008/remont/testing-diagnostics/#dtcs-p1999-to-p2561-checking-fuel-delivery-hard-start-engine-cranks-but-does-not-start-powertrain-verification-tests__powertrain-verification-test-ver-2) . No Replace the Fuel Pump. Refer to «REMOVAL»(/chrysler/crossfire/i-final-2008-2008/remont/fuel-system/#fuel-system) . Perform «POWERTRAIN VERIFICATION TEST - VER 2»(/chrysler/crossfire/i-final-2008-2008/remont/testing-diagnostics/#dtcs-p1999-to-p2561-checking-fuel-delivery-hard-start-engine-cranks-but-does-not-start-powertrain-verification-tests__powertrain-verification-test-ver-2) .
13. 13) INTERMITTENT WIRING AND CONNECTORS The conditions necessary to set this DTC are not present at this time. NOTE: Check connectors - Clean/repair as necessary. Poor pin to terminal connections can set DTCs. Using the wiring diagram/schematic as a guide, inspect the wiring and connectors specific to this DTC. Wiggle the wires while checking for shorts and open circuits. NOTE: Check for any Technical Service Bulletins that may apply. Were there any problems found? Yes Repair as necessary. Perform «POWERTRAIN VERIFICATION TEST - VER 2»(/chrysler/crossfire/i-final-2008-2008/remont/testing-diagnostics/#dtcs-p1999-to-p2561-checking-fuel-delivery-hard-start-engine-cranks-but-does-not-start-powertrain-verification-tests__powertrain-verification-test-ver-2) . No The condition that caused this DTC to set is currently not present. Inspect the related wiring harness for a possible intermittent condition.

P0172-FUEL SYSTEM 1/1 OVERCORRECTION OF FUEL MIXTURE (AT IDLE)

1. When Monitored : With the engine running in closed loop mode, the ambient/battery temperature above -7°C (20°F), altitude below 2590m (8500 ft). and fuel level greater than 15%.
2. Set Condition : If the PCM multiplies short term compensation by long term adaptive and a certain percentage is exceeded for two trips, the MIL illuminates and a trouble code is stored.

For a complete Powertrain Control Module Circuit Diagram, refer to SCHEMATICS AND DIAGRAMS .

1. 1) CHECK FOR CURRENT DTC Turn the ignition on. With the scan tool, read PCM DTCs. Is this DTC present? Yes For complete diagnosis of this DTC, refer to «P0171-FUEL SYSTEM 1/1 RICH CONTROL OVER LIMIT (AT LOAD)»(/chrysler/crossfire/i-final-2008-2008/remont/testing-diagnostics/#dtcs-p0153-to-p0200__p0171-fuel-system-11-rich-control-over) . No Go to 2) .
2. 2) INTERMITTENT WIRING AND CONNECTORS The conditions necessary to set this DTC are not present at this time. NOTE: Check connectors - Clean/repair as necessary. Poor pin to terminal connections can set DTCs. Using the wiring diagram/schematic as a guide, inspect the wiring and connectors specific to this DTC. Wiggle the wires while checking for shorts and open circuits. NOTE: Check for any Technical Service Bulletins that may apply. Were there any problems found? Yes Repair as necessary. Perform «POWERTRAIN VERIFICATION TEST - VER 2»(/chrysler/crossfire/i-final-2008-2008/remont/testing-diagnostics/#dtcs-p1999-to-p2561-checking-fuel-delivery-hard-start-engine-cranks-but-does-not-start-powertrain-verification-tests__powertrain-verification-test-ver-2) . No The condition that caused this DTC to set is currently not present. Inspect the related wiring harness for a possible intermittent condition.

Scheme 130

1. When Monitored : With the engine running in closed loop mode, the ambient/battery temperature above -7°C (20°F), altitude below 2590m (8500 ft). and fuel level greater than 15%.
2. Set Condition : If the PCM multiplies short term compensation by long term adaptive and a certain percentage is exceeded for two trips, the MIL illuminates and a trouble code is stored.

For a complete Powertrain Control Module Circuit Diagram, refer to SCHEMATICS AND DIAGRAMS .

1. 1) PRE-DIAGNOSTIC CHECK OUT NOTE: Always perform diagnostics with a fully charged battery. NOTE: Check connectors - Clean/repair as necessary. Poor pin to terminal connections can set DTCs. NOTE: Check for applicable TSBs related to the problem. Turn the ignition on. With the scan tool, read PCM DTCs. Using the wiring diagram/schematic as a guide, inspect the wiring and connectors. Repair as necessary. Perform this procedure prior to symptom diagnosis. Continue Go to 2) .
2. 2) CHECK FOR CURRENT DTC NOTE: Check for contaminates that may have damaged the O2 Sensor: contaminated fuel, unapproved silicone, oil and coolant. NOTE: Diagnose any Misfire, Throttle Body, or Accelerator Pedal Position Sensor DTC(s) first, if set along with the fuel system DTC. NOTE: If the PCM detects and stores a DTC, the PCM also stores the engine/vehicle operating conditions under which the DTC was set. Some of these conditions are displayed on the scan tool at the same time the DTC is displayed. NOTE: Before erasing stored DTCs, record these conditions. Attempting to duplicate these conditions may assist when checking for a DTC. Turn the ignition on. With the scan tool, erase PCM DTCs. NOTE: It maybe necessary to road test the vehicle for this DTC to set. With the scan tool, read PCM DTCs. Did this DTC set again? Yes Go to 3) . No Go to 13) .
3. 3) CHECKING FUEL PRESSURE WARNING: THE FUEL SYSTEM IS UNDER A CONSTANT PRESSURE (EVEN WITH THE ENGINE OFF). BEFORE TESTING OR SERVICING ANY FUEL SYSTEM HOSE, FITTING OR LINE, THE FUEL SYSTEM PRESSURE MUST BE RELEASED. Turn the ignition off. Install a fuel pressure gauge. Turn the ignition on. With the scan tool, actuate the Fuel Pump and observe the fuel pressure gauge. NOTE: Fuel pressure specification is 3.7 to 4.2 bar (54 to 61 psi). Turn the ignition off. CAUTION: Stop All Actuations. Choose a conclusion that best matches your fuel pressure reading. Within Specification Go to 4) . Below Specification Go to 12) .
4. 4) O2 SENSOR OPERATION NOTE: If one of the O2 Sensors Signal or Ground circuits are shorted to ground or voltage, all the other O2 Sensor voltage readings will be affected. NOTE: After the repairs have been made, verify proper O2 Sensor operation. If all the O2 Sensor voltage readings have not returned to normal, follow the diagnostic procedure for the remaining O2 Sensors. Start the engine. Allow the engine to reach normal operating temperature. With the scan tool, read the O2 Sensor voltage. Is the voltage switching between 0.4 and 0.6 volt? Yes Go to 5) . No Go to 9) .
5. 5) O2 SENSOR HEATER OPERATION Turn the ignition off. NOTE: Allow the O2 Sensor to cool down before continuing the test. Raising the hood may help in reducing under hood temperatures. Connect a jumper wire between ground and the Oxygen Sensor Heater Control circuit at the PCM harness connector leaving the harness connector connected to the PCM. Turn the ignition on. With the scan tool, monitor O2 Sensor voltage for at least 2 minutes. CAUTION: Remove the jumper wire after this Step is complete. Does the voltage stay above 0.6 volt? Yes Replace the Oxygen Sensor. Refer to «REMOVAL»(/chrysler/crossfire/i-final-2008-2008/remont/fuel-system/#fuel-system) . Perform «POWERTRAIN VERIFICATION TEST - VER 2»(/chrysler/crossfire/i-final-2008-2008/remont/testing-diagnostics/#dtcs-p1999-to-p2561-checking-fuel-delivery-hard-start-engine-cranks-but-does-not-start-powertrain-verification-tests__powertrain-verification-test-ver-2) . No Go to 6) .
6. 6) MAP SENSOR OPERATION Turn the ignition off. Connect a Vacuum Gauge to a Manifold Vacuum source. Start the engine. Allow the engine to idle. NOTE: If engine will not idle, maintain a constant RPM above idle. With the scan tool, read the MAP Sensor vacuum value. Is the scan tool reading within 33.9 mbar (1 in. Hg) of the Vacuum Gauge reading? Yes Go to 7) . No Replace the Manifold Absolute Pressure Sensor. Refer to «REMOVAL»(/chrysler/crossfire/i-final-2008-2008/remont/fuel-system/#fuel-system) . Perform «POWERTRAIN VERIFICATION TEST - VER 2»(/chrysler/crossfire/i-final-2008-2008/remont/testing-diagnostics/#dtcs-p1999-to-p2561-checking-fuel-delivery-hard-start-engine-cranks-but-does-not-start-powertrain-verification-tests__powertrain-verification-test-ver-2) .
7. 7) ECT SENSOR OPERATION NOTE: For this test to be valid, the thermostat must be operating correctly. NOTE: This test works best if performed on a cold engine (cold soak) Turn the engine off. Turn the ignition on. With the scan tool, read the Engine Coolant Temperature (ECT) Sensor value. If the engine was allowed to sit overnight (cold soak), the temperature value should be a sensible value that is somewhere close to the ambient temperature. NOTE: If engine coolant temperature is above 82°C (180°F), allow the engine to cool until 65°C (150°F) is reached. Start the engine. During engine warm-up, monitor the ECT Sensor value. The temperature value change should be a smooth transition from start up to normal operating temperature 82°C (180°F). The value should reach at least 82°C (180°F). Did the ECT value increase with a smooth transition and did it reach at least 82°C (180°F)? Yes Go to 8) . No Replace the Engine Coolant Temperature Sensor. Refer to «REMOVAL»(/chrysler/crossfire/i-final-2008-2008/remont/accessory-drive-belts/#engine-cooling-system-automatic-transmission-cooling-system) . Perform «POWERTRAIN VERIFICATION TEST - VER 2»(/chrysler/crossfire/i-final-2008-2008/remont/testing-diagnostics/#dtcs-p1999-to-p2561-checking-fuel-delivery-hard-start-engine-cranks-but-does-not-start-powertrain-verification-tests__powertrain-verification-test-ver-2) .
8. 8) ENGINE MECHANICAL PROBLEM Turn the ignition off. Check for any of the following conditions/mechanical problems. AIR INDUCTION SYSTEM - must be free from leaks. ENGINE VACUUM - must be at least 440 mbar (13 in. Hg) in neutral ENGINE VALVE TIMING - must be within specifications ENGINE COMPRESSION - must be within specifications ENGINE EXHAUST SYSTEM - must be free of any restrictions or leaks. ENGINE PCV SYSTEM - must flow freely TORQUE CONVERTER STALL SPEED - must be within specifications POWER BRAKE BOOSTER - must not have any internal vacuum leaks FUEL - must be free of contamination FUEL INJECTOR - must not have a plugged or restricted injector; or control wire not connected to correct injector Are there any engine mechanical problems? Yes Repair as necessary. Perform «POWERTRAIN VERIFICATION TEST - VER 2»(/chrysler/crossfire/i-final-2008-2008/remont/testing-diagnostics/#dtcs-p1999-to-p2561-checking-fuel-delivery-hard-start-engine-cranks-but-does-not-start-powertrain-verification-tests__powertrain-verification-test-ver-2) . No Go to 13) .
9. 9) O2 SENSOR Turn the ignition off. Disconnect the O2 Sensor harness connector. NOTE: Check connectors - Clean/repair as necessary. Turn the ignition on. With the scan tool, monitor the O2 Sensor voltage. The O2 Sensor voltage should read 0.47 volt on the scan tool with the harness connector disconnected. Connect a jumper wire between the O2 Sensor Signal circuit and the Sensor Ground circuit at the O2 Sensor harness connector. NOTE: The voltage should drop from 0.47 volt down to 0.0 volt with the jumper wire connected. Did the O2 Sensor voltage drop from 0.47 volt to 0.0 volt? Yes Replace the Oxygen Sensor. Refer to «REMOVAL»(/chrysler/crossfire/i-final-2008-2008/remont/fuel-system/#fuel-system) . Perform «POWERTRAIN VERIFICATION TEST - VER 2»(/chrysler/crossfire/i-final-2008-2008/remont/testing-diagnostics/#dtcs-p1999-to-p2561-checking-fuel-delivery-hard-start-engine-cranks-but-does-not-start-powertrain-verification-tests__powertrain-verification-test-ver-2) . No Go to 10) .
10. 10) O2 SENSOR SIGNAL CIRCUIT With the ignition on. With the scan tool, monitor the O2 Sensor voltage. Is the voltage below 0.45 volt? Yes Go to 11) . No Check the O2 Signal circuit for a short to ground, open, or short to voltage. Inspect the O2 Sensor connector and the PCM harness connector. If OK, replace and program the Powertrain Control Module. Refer to «REMOVAL»(/chrysler/crossfire/i-final-2008-2008/remont/communication-devices/#electronic-control-modules-service-information) . Perform «POWERTRAIN VERIFICATION TEST - VER 2»(/chrysler/crossfire/i-final-2008-2008/remont/testing-diagnostics/#dtcs-p1999-to-p2561-checking-fuel-delivery-hard-start-engine-cranks-but-does-not-start-powertrain-verification-tests__powertrain-verification-test-ver-2) .
11. 11) SENSOR GROUND CIRCUIT With the ignition on. Measure the voltage of the Sensor Ground circuit at the O2 Sensor harness connector. Is the voltage below 0.1 volt? Yes Check the fuel system for contaminates. Also, check the exhaust system for any leaks. Refer to «INSPECTION»(/chrysler/crossfire/i-final-2008-2008/remont/exhaust/#exhaust-system__inspection) . Perform «POWERTRAIN VERIFICATION TEST - VER 2»(/chrysler/crossfire/i-final-2008-2008/remont/testing-diagnostics/#dtcs-p1999-to-p2561-checking-fuel-delivery-hard-start-engine-cranks-but-does-not-start-powertrain-verification-tests__powertrain-verification-test-ver-2) . No Check the Sensor Ground circuit for a short to ground, open, or short to voltage. Inspect the O2 Sensor connector and the PCM harness connector. If OK, replace and program the Powertrain Control Module. Refer to «REMOVAL»(/chrysler/crossfire/i-final-2008-2008/remont/communication-devices/#electronic-control-modules-service-information) . Perform «POWERTRAIN VERIFICATION TEST - VER 2»(/chrysler/crossfire/i-final-2008-2008/remont/testing-diagnostics/#dtcs-p1999-to-p2561-checking-fuel-delivery-hard-start-engine-cranks-but-does-not-start-powertrain-verification-tests__powertrain-verification-test-ver-2) .
12. 12) FUEL PUMP INLET STRAINER WARNING: THE FUEL SYSTEM IS UNDER A CONSTANT PRESSURE (EVEN WITH THE ENGINE OFF). BEFORE TESTING OR SERVICING ANY FUEL SYSTEM HOSE, FITTING OR LINE, THE FUEL SYSTEM PRESSURE MUST BE RELEASED With the ignition off. Remove and inspect the Fuel Pump Inlet Strainer. Is the Fuel Pump Inlet Strainer plugged? Yes Replace the Fuel Pump Inlet Strainer. Refer to «REMOVAL»(/chrysler/crossfire/i-final-2008-2008/remont/fuel-system/#fuel-system) . Perform «POWERTRAIN VERIFICATION TEST - VER 2»(/chrysler/crossfire/i-final-2008-2008/remont/testing-diagnostics/#dtcs-p1999-to-p2561-checking-fuel-delivery-hard-start-engine-cranks-but-does-not-start-powertrain-verification-tests__powertrain-verification-test-ver-2) . No Replace the Fuel Pump. Refer to «REMOVAL»(/chrysler/crossfire/i-final-2008-2008/remont/fuel-system/#fuel-system) . Perform «POWERTRAIN VERIFICATION TEST - VER 2»(/chrysler/crossfire/i-final-2008-2008/remont/testing-diagnostics/#dtcs-p1999-to-p2561-checking-fuel-delivery-hard-start-engine-cranks-but-does-not-start-powertrain-verification-tests__powertrain-verification-test-ver-2) .
13. 13) INTERMITTENT WIRING AND CONNECTORS The conditions necessary to set this DTC are not present at this time. NOTE: Check connectors - Clean/repair as necessary. Poor pin to terminal connections can set DTCs. Using the wiring diagram/schematic as a guide, inspect the wiring and connectors specific to this DTC. Wiggle the wires while checking for shorts and open circuits. NOTE: Check for any Technical Service Bulletins that may apply. Were there any problems found? Yes Repair as necessary. Perform «POWERTRAIN VERIFICATION TEST - VER 2»(/chrysler/crossfire/i-final-2008-2008/remont/testing-diagnostics/#dtcs-p1999-to-p2561-checking-fuel-delivery-hard-start-engine-cranks-but-does-not-start-powertrain-verification-tests__powertrain-verification-test-ver-2) . No The condition that caused this DTC to set is currently not present. Inspect the related wiring harness for a possible intermittent condition.

P0174-FUEL SYSTEM 2/1 LEAN CONTROL BELOW LIMIT (AT LOAD)

1. When Monitored : With the engine running in closed loop mode, the ambient/battery temperature above -7°C (20°F), altitude below 2590m (8500 ft). and fuel level greater than 15%.
2. Set Condition : If the PCM multiplies short term compensation by long term adaptive and a certain percentage is exceeded for two trips, the MIL illuminates and a trouble code is stored.

For a complete Powertrain Control Module Circuit Diagram, refer to SCHEMATICS AND DIAGRAMS .

1. 1) CHECK FOR CURRENT DTC Turn the ignition on. With the scan tool, read PCM DTCs. Is this DTC present? Yes For complete diagnosis of this DTC, refer to «P0172-FUEL SYSTEM 1/1 LEAN CONTROL BELOW LIMIT (AT LOAD)»(/chrysler/crossfire/i-final-2008-2008/remont/testing-diagnostics/#dtcs-p0153-to-p0200__p0172-fuel-system-11-lean-control-below) . No Go to 2) .
2. 2) INTERMITTENT WIRING AND CONNECTORS The conditions necessary to set this DTC are not present at this time. NOTE: Check connectors - Clean/repair as necessary. Poor pin to terminal connections can set DTCs. Using the wiring diagram/schematic as a guide, inspect the wiring and connectors specific to this DTC. Wiggle the wires while checking for shorts and open circuits. NOTE: Check for any Technical Service Bulletins that may apply. Were there any problems found? Yes Repair as necessary. Perform «POWERTRAIN VERIFICATION TEST - VER 2»(/chrysler/crossfire/i-final-2008-2008/remont/testing-diagnostics/#dtcs-p1999-to-p2561-checking-fuel-delivery-hard-start-engine-cranks-but-does-not-start-powertrain-verification-tests__powertrain-verification-test-ver-2) . No The condition that caused this DTC to set is currently not present. Inspect the related wiring harness for a possible intermittent condition.

P0174-FUEL SYSTEM 2/1 RICH CONTROL OVER LIMIT (AT IDLE)

1. When Monitored : With the engine running in closed loop mode, the ambient/battery temperature above -7°C (20°F), altitude below 2590m (8500 ft). and fuel level greater than 15%.
2. Set Condition : If the PCM multiplies short term compensation by long term adaptive and a certain percentage is exceeded for two trips, the MIL illuminates and a trouble code is stored.

For a complete Powertrain Control Module Circuit Diagram, refer to SCHEMATICS AND DIAGRAMS .

1. 1) CHECK FOR CURRENT DTC Turn the ignition on. With the scan tool, read PCM DTCs. Is this DTC present? Yes For complete diagnosis of this DTC, refer to «P0171-FUEL SYSTEM 1/1 RICH CONTROL OVER LIMIT (AT LOAD)»(/chrysler/crossfire/i-final-2008-2008/remont/testing-diagnostics/#dtcs-p0153-to-p0200__p0171-fuel-system-11-rich-control-over) . No Go to 2) .
2. 2) INTERMITTENT WIRING AND CONNECTORS The conditions necessary to set this DTC are not present at this time. NOTE: Check connectors - Clean/repair as necessary. Poor pin to terminal connections can set DTCs. Using the wiring diagram/schematic as a guide, inspect the wiring and connectors specific to this DTC. Wiggle the wires while checking for shorts and open circuits. NOTE: Check for any Technical Service Bulletins that may apply. Were there any problems found? Yes Repair as necessary. Perform «POWERTRAIN VERIFICATION TEST - VER 2»(/chrysler/crossfire/i-final-2008-2008/remont/testing-diagnostics/#dtcs-p1999-to-p2561-checking-fuel-delivery-hard-start-engine-cranks-but-does-not-start-powertrain-verification-tests__powertrain-verification-test-ver-2) . No The condition that caused this DTC to set is currently not present. Inspect the related wiring harness for a possible intermittent condition.

P0174-FUEL SYSTEM 2/1 RICH CONTROL OVER LIMIT (AT LOAD)

1. When Monitored : With the engine running in closed loop mode, the ambient/battery temperature above -7°C (20°F), altitude below 2590m (8500 ft). and fuel level greater than 15%.
2. Set Condition : If the PCM multiplies short term compensation by long term adaptive and a certain percentage is exceeded for two trips, the MIL illuminates and a trouble code is stored.

For a complete Powertrain Control Module Circuit Diagram, refer to SCHEMATICS AND DIAGRAMS .

1. 1) CHECK FOR CURRENT DTC Turn the ignition on. With the scan tool, read PCM DTCs. Is this DTC present? Yes For complete diagnosis of this DTC, refer to «P0171-FUEL SYSTEM 1/1 RICH CONTROL OVER LIMIT (AT LOAD)»(/chrysler/crossfire/i-final-2008-2008/remont/testing-diagnostics/#dtcs-p0153-to-p0200__p0171-fuel-system-11-rich-control-over) . No Go to 2) .
2. 2) INTERMITTENT WIRING AND CONNECTORS The conditions necessary to set this DTC are not present at this time. NOTE: Check connectors - Clean/repair as necessary. Poor pin to terminal connections can set DTCs. Using the wiring diagram/schematic as a guide, inspect the wiring and connectors specific to this DTC. Wiggle the wires while checking for shorts and open circuits. NOTE: Check for any Technical Service Bulletins that may apply. Were there any problems found? Yes Repair as necessary. Perform «POWERTRAIN VERIFICATION TEST - VER 2»(/chrysler/crossfire/i-final-2008-2008/remont/testing-diagnostics/#dtcs-p1999-to-p2561-checking-fuel-delivery-hard-start-engine-cranks-but-does-not-start-powertrain-verification-tests__powertrain-verification-test-ver-2) . No The condition that caused this DTC to set is currently not present. Inspect the related wiring harness for a possible intermittent condition.

P0174-FUEL SYSTEM 2/1 UNDERCORRECTION OF FUEL MIXTURE (OFF IDLE)

1. When Monitored : With the engine running in closed loop mode, the ambient/battery temperature above -7°C (20°F), altitude below 2590m (8500 ft). and fuel level greater than 15%.
2. Set Condition : If the PCM multiplies short term compensation by long term adaptive and a certain percentage is exceeded for two trips, the MIL illuminates and a trouble code is stored.

For a complete Powertrain Control Module Circuit Diagram, refer to SCHEMATICS AND DIAGRAMS .

1. 1) CHECK FOR CURRENT DTC Turn the ignition on. With the scan tool, read PCM DTCs. Is this DTC present? Yes For complete diagnosis of this DTC, refer to «P0172-FUEL SYSTEM 1/1 LEAN CONTROL BELOW LIMIT (AT LOAD)»(/chrysler/crossfire/i-final-2008-2008/remont/testing-diagnostics/#dtcs-p0153-to-p0200__p0172-fuel-system-11-lean-control-below) . No Go to 2) .
2. 2) INTERMITTENT WIRING AND CONNECTORS The conditions necessary to set this DTC are not present at this time. NOTE: Check connectors - Clean/repair as necessary. Poor pin to terminal connections can set DTCs. Using the wiring diagram/schematic as a guide, inspect the wiring and connectors specific to this DTC. Wiggle the wires while checking for shorts and open circuits. NOTE: Check for any Technical Service Bulletins that may apply. Were there any problems found? Yes Repair as necessary. Perform «POWERTRAIN VERIFICATION TEST - VER 2»(/chrysler/crossfire/i-final-2008-2008/remont/testing-diagnostics/#dtcs-p1999-to-p2561-checking-fuel-delivery-hard-start-engine-cranks-but-does-not-start-powertrain-verification-tests__powertrain-verification-test-ver-2) . No The condition that caused this DTC to set is currently not present. Inspect the related wiring harness for a possible intermittent condition.

P0175-FUEL SYSTEM 2/1 LEAN CONTROL BELOW LIMIT (AT IDLE)

1. When Monitored : With the engine running in closed loop mode, the ambient/battery temperature above -7°C (20°F), altitude below 2590m (8500 ft). and fuel level greater than 15%.
2. Set Condition : If the PCM multiplies short term compensation by long term adaptive and a certain percentage is exceeded for two trips, the MIL illuminates and a trouble code is stored.

For a complete Powertrain Control Module Circuit Diagram, refer to SCHEMATICS AND DIAGRAMS .

1. 1) CHECK FOR CURRENT DTC Turn the ignition on. With the scan tool, read PCM DTCs. Is this DTC present? Yes For complete diagnosis of this DTC, refer to «P0172-FUEL SYSTEM 1/1 LEAN CONTROL BELOW LIMIT (AT LOAD)»(/chrysler/crossfire/i-final-2008-2008/remont/testing-diagnostics/#dtcs-p0153-to-p0200__p0172-fuel-system-11-lean-control-below) . No Go to 2) .
2. 2) INTERMITTENT WIRING AND CONNECTORS The conditions necessary to set this DTC are not present at this time. NOTE: Check connectors - Clean/repair as necessary. Poor pin to terminal connections can set DTCs. Using the wiring diagram/schematic as a guide, inspect the wiring and connectors specific to this DTC. Wiggle the wires while checking for shorts and open circuits. NOTE: Check for any Technical Service Bulletins that may apply. Were there any problems found? Yes Repair as necessary. Perform «POWERTRAIN VERIFICATION TEST - VER 2»(/chrysler/crossfire/i-final-2008-2008/remont/testing-diagnostics/#dtcs-p1999-to-p2561-checking-fuel-delivery-hard-start-engine-cranks-but-does-not-start-powertrain-verification-tests__powertrain-verification-test-ver-2) . No The condition that caused this DTC to set is currently not present. Inspect the related wiring harness for a possible intermittent condition.

P0175-FUEL SYSTEM 2/1 OVERCORRECTION OF FUEL MIXTURE (OFF IDLE)

1. When Monitored : With the engine running in closed loop mode, the ambient/battery temperature above -7°C (20°F), altitude below 2590m (8500 ft). and fuel level greater than 15%.
2. Set Condition : If the PCM multiplies short term compensation by long term adaptive and a certain percentage is exceeded for two trips, the MIL illuminates and a trouble code is stored.

For a complete Powertrain Control Module Circuit Diagram, refer to SCHEMATICS AND DIAGRAMS .

1. 1) CHECK FOR CURRENT DTC Turn the ignition on. With the scan tool, read PCM DTCs. Is this DTC present? Yes For complete diagnosis of this DTC, refer to «P0171-FUEL SYSTEM 1/1 RICH CONTROL OVER LIMIT (AT LOAD)»(/chrysler/crossfire/i-final-2008-2008/remont/testing-diagnostics/#dtcs-p0153-to-p0200__p0171-fuel-system-11-rich-control-over) . No Go to 2) .
2. 2) INTERMITTENT WIRING AND CONNECTORS The conditions necessary to set this DTC are not present at this time. NOTE: Check connectors - Clean/repair as necessary. Poor pin to terminal connections can set DTCs. Using the wiring diagram/schematic as a guide, inspect the wiring and connectors specific to this DTC. Wiggle the wires while checking for shorts and open circuits. NOTE: Check for any Technical Service Bulletins that may apply. Were there any problems found? Yes Repair as necessary. Perform «POWERTRAIN VERIFICATION TEST - VER 2»(/chrysler/crossfire/i-final-2008-2008/remont/testing-diagnostics/#dtcs-p1999-to-p2561-checking-fuel-delivery-hard-start-engine-cranks-but-does-not-start-powertrain-verification-tests__powertrain-verification-test-ver-2) . No The condition that caused this DTC to set is currently not present. Inspect the related wiring harness for a possible intermittent condition.

Scheme 131

1. When Monitored : With battery voltage greater than 10 volts. Engine Control Relay energized. Engine speed less than 3000 RPM.
2. Set Condition : No inductive spike is detected after injector turn off. One Trip Fault.

For a complete Powertrain Control Module Circuit Diagram, refer to SCHEMATICS AND DIAGRAMS .

1. 1) CHECK FOR CURRENT DTC Turn the ignition on. With the scan tool, read PCM DTCs. Is this DTC present? Yes For complete diagnosis of this DTC, refer to «P0201-FUEL INJECTOR #1 CIRCUIT»(/chrysler/crossfire/i-final-2008-2008/remont/testing-diagnostics/#dtcs-p0201-to-p0335) No Go to 2) .
2. 2) INTERMITTENT WIRING AND CONNECTORS The conditions necessary to set this DTC are not present at this time. NOTE: Check connectors - Clean/repair as necessary. Poor pin to terminal connections can set DTCs. Using the wiring diagram/schematic as a guide, inspect the wiring and connectors specific to this DTC. Wiggle the wires while checking for shorts and open circuits. NOTE: Check for any Technical Service Bulletins that may apply. Were there any problems found? Yes Repair as necessary. Perform «POWERTRAIN VERIFICATION TEST - VER 2»(/chrysler/crossfire/i-final-2008-2008/remont/testing-diagnostics/#dtcs-p1999-to-p2561-checking-fuel-delivery-hard-start-engine-cranks-but-does-not-start-powertrain-verification-tests__powertrain-verification-test-ver-2) . No The condition that caused this DTC to set is currently not present. Inspect the related wiring harness for a possible intermittent condition.

See also:
• SCHEMATICS AND DIAGRAMS
• REMOVAL
• POWERTRAIN VERIFICATION TEST - VER 2
• REMOVAL
• REMOVAL
• P0131-O2 SENSOR 1/1 CIRCUIT LOW
• P0135-O2 SENSOR 1/1 HEATER CIRCUIT HIGH
• P0135-O2 SENSOR 1/1 HEATER CIRCUIT LOW
• P0135-O2 SENSOR 1/1 HEATER PERFORMANCE
• REMOVAL
• REMOVAL
• INSPECTION
• P0201-FUEL INJECTOR #1 CIRCUIT
• P0171-FUEL SYSTEM 1/1 RICH CONTROL OVER LIMIT (AT LOAD)
• P0172-FUEL SYSTEM 1/1 LEAN CONTROL BELOW LIMIT (AT LOAD)