Engine Controls & Fuel - 2.0L - Diagnosis & Troubleshooting: Diagnosis Pontiac Solstice I

Diagnostic Instructions

1. Perform the «Diagnostic System Check - Vehicle»(ref-267923-S26873286382007101700000) prior to using this diagnostic procedure.
2. Review «Strategy Based Diagnosis»(ref-267923-S16575275542007101700000) for an overview of the diagnostic approach.
3. «Diagnostic Procedure Instructions»(ref-267923-S13300682012007101700000) provides an overview of each diagnostic category.

Symptoms Verification

Before using the Symptom tables, perform the following inspections

1. Ensure that the engine control module (ECM) and malfunction indicator lamp (MIL) are operating correctly.
2. Ensure that there are no diagnostic trouble codes (DTCs) that are stored.
3. Ensure that the scan tool data is within a normal operating range. Refer to «Scan Tool Data List»(ref-267965-S00815679512007101700000) .
4. Verify the customer concern.
5. Perform the Visual/Physical Inspection in this section. The visual/physical inspection is extremely important, and can lead to correcting a condition without additional testing. It may also help reveal the cause of an intermittent condition.

Symptoms Testing

Backfire, Cuts Out/Misses, Detonation/Spark Knock, Dieseling/Run-On, Hard Start, Hesitation/Sag/Stumble, Lack of Power/Sluggishness/Sponginess, Poor Fuel Economy, Rough, Unstable, or Incorrect Idle and Stalling, or Surges/Chuggles

1. Test the fuel system for the following: The fuel system for correct operation volume and pressure. Refer «Fuel System Diagnosis»(ref-267947-S29211521292007101700000) . The fuel injectors for proper operation. Refer to «DTC P0201, P0202, P0203, P0204, P0261, P0262, P0264, P0265, P0267, P0268, P0270, P0271, or P2146-P2157»(ref-267951-S39068576622007101700000) . The fuel quality condition. Refer to «Alcohol/Contaminants-in-Fuel Diagnosis»(ref-267947-S37521993092007101700000) .
2. Test ignition system for the following: Proper ignition system operation-Refer to «Electronic Ignition (EI) System Diagnosis»(ref-267947-S06601837602007101700000) . Spark plugs-Refer to «Spark Plug Inspection»(ref-267939-S15017049222007101700000) . Spark plugs for correct application-Refer to «Ignition System Specifications»(ref-267939-S12552827552007101700000) .
3. Inspect for the following conditions The proper operation of the transmission torque converter clutch (TCC). The scan tool should indicate an engine speed drop when the TCC is commanded ON. The proper operation of the A/C compressor. Items that can cause an engine to run lean or rich. The crankshaft position (CKP) sensor for proper operation The proper operation of the knock sensor (KS) system Inspect the exhaust system. Refer to «Symptoms - Engine Exhaust»(ref-267921-S02943183002007101700000) . Electromagnetic interference (EMI) on the reference circuit can cause a misfire condition. You can usually detect EMI with a scan tool by monitoring the engine speed parameter. A sudden increase in the engine speed parameter with little change in actual engine speed indicates that EMI is present. Inspect the high voltage components near the ignition control circuit if a condition exists. The crankcase ventilation valve for proper operation. The proper operation of the evaporative emission (EVAP) canister purge solenoid. The proper operation of the engine cooling system. Refer to «Symptoms - Engine Cooling»(ref-267956-S36621127132007101700000) .
4. Inspect the engine for the following mechanical failures: Refer to «Symptoms - Engine Mechanical»(ref-267961-S27470785442007101700000) . Excessive oil in the combustion chamber or leaking valve seals Oil Consumption Incorrect cylinder compression Sticking or leaking valves Worn camshaft lobes Incorrect valve timing Worn rocker arms Broken valve springs Excessive carbon buildup in the combustion chambers-Clean the chambers with top engine cleaner. Follow the instructions on the can. Incorrect engine parts
5. If the above conditions do not address the symptom, refer to the additional symptoms tests.

Additional Symptoms Tests

Hard Start

1. Verify that the engine coolant temperature (ECT) has not shifted in value. Refer to «Temperature Versus Resistance»(ref-267939-S23918566702007101700000) .
2. Verify the engine electrical system for correct operation. Refer to «Symptoms - Engine Electrical»(ref-267914-S12766446612007101700000) .
3. Verify that the driver is using the correct starting procedure as described in the owners manual.
4. Verify that there is adequate fuel.
5. Inspect for excessive crankshaft endplay that will cause the CKP sensor reluctor wheel to move out of alignment with the CKP sensor. Refer to «Crankshaft and Bearings Cleaning and Inspection»(ref-267961-S31814249452007101700000) .

Hesitation, Sag, Stumble

1. Inspect the mass air flow (MAF) sensor for obstruction, contamination, and damage. Refer to «Mass Airflow Sensor Replacement»(ref-267939-S19773267612007101700000) .
2. Test the generator. Refer to «Symptoms - Engine Electrical»(ref-267914-S12766446612007101700000) . Repair the charging system if the generator output voltage is less than 9 volts or more than 16 volts.
3. Inspect for excessive crankshaft endplay that will cause the CKP sensor reluctor wheel to move out of alignment with the CKP sensor. Refer to «Crankshaft and Bearings Cleaning and Inspection»(ref-267961-S31814249452007101700000) .

Poor Fuel Economy

1. Heavy loads being carried or towed
2. Acceleration rate too much or too often
3. Inspect the brake system for brake drag.
4. Inspect for incorrect operation of the speedometer.
5. Verify that the ECT has not shifted in value. Refer to «Temperature Versus Resistance»(ref-267939-S23918566702007101700000) .
6. Inspect the MAF sensor for obstruction, contamination, and damage. Refer to «Mass Airflow Sensor/Intake Air Temperature Sensor Replacement»(ref-267935-S27092115992007101700000) .
7. Inspect for foreign material accumulation in the throttle bore, and for carbon deposits on the throttle plate and shaft. Also inspect for throttle body tampering.

Detonaton/Spark Knock

1. Test for an engine overheating condition. Refer to «Symptoms - Engine Cooling»(ref-267956-S36621127132007101700000) .
2. Verify that the ECT has not shifted in value. Refer to «Temperature Versus Resistance»(ref-267939-S23918566702007101700000) .
3. If there are no engine mechanical faults, fill the fuel tank with a known high quality fuel that meets the vehicle minimum octane requirements.

Lack of Power, Hesitation, or Cut Out

1. Inspect the engine electrical system for correct operation. Refer to «Symptoms - Engine Electrical»(ref-267914-S12766446612007101700000) .
2. Verify that each injector harness is connected to the correct injector.
3. Inspect the MAF sensor for obstruction, contamination, and damage. Refer to «Mass Airflow Sensor Replacement»(ref-267939-S19773267612007101700000) .

Rough, Unstable, or Incorrect Idle and Stalling

1. Inspect the MAF sensor for obstruction, contamination, and damage. Refer to «Mass Airflow Sensor Replacement»(ref-267939-S19773267612007101700000) .
2. Inspect the engine mounts. Refer to «Engine Mount Inspection»(ref-267961-S30470003732007101700000) .
3. Inspect the intake and exhaust manifolds for casting flash.

Surges/Chuggles

1. Inspect the MAF sensor for obstruction, contamination, and damage. Refer to «Mass Airflow Sensor Replacement»(ref-267939-S19773267612007101700000) .
2. Test the heated oxygen sensors (HO2S). The HO2S should respond quickly to a change in throttle position. If the HO2S do not respond to different throttle positions, inspect for contamination from fuel, silicon, or the incorrect use of RTV sealant. The sensors may have a white powdery coating and result in a high, but false, signal voltage, which gives a rich exhaust indication. The ECM reduces the amount of fuel delivered to the engine, causing a driveability condition.
3. Verify that each injector harness is connected to the correct injector.

1. Perform the «Diagnostic System Check - Vehicle»(ref-267923-S26873286382007101700000) prior to using this diagnostic procedure.
2. Review «Strategy Based Diagnosis»(ref-267923-S16575275542007101700000) for an overview of the diagnostic approach.
3. «Diagnostic Procedure Instructions»(ref-267923-S13300682012007101700000) provides an overview of each diagnostic category.

Circuit/System Testing

1. Ignition OFF, disconnect the harness connector at the instrument panel cluster (IPC).
2. Ignition ON, verify that a test lamp illuminates between the ignition circuit and ground. If the test lamp does not illuminate, test the ignition circuit for a short to ground or an open/high resistance. If the circuit tests normal and the ignition circuit fuse is open, replace the IPC.
3. Connect a test lamp between the control circuit and the ignition circuit.
4. Command the MIL ON and OFF with a scan tool. The test lamp should turn ON and OFF when changing between the commanded states. If the test lamp is always ON, test the control circuit for a short to ground. If the circuit tests normal, replace the ECM. If the test lamp is always OFF, test the control circuit for a short to voltage or an open/high resistance. If the circuit tests normal, replace the ECM.
5. If all the circuits test normal, replace the IPC.

1. Perform the «Diagnostic System Check - Vehicle»(ref-267923-S26873286382007101700000) prior to using this diagnostic procedure.
2. Review «Strategy Based Diagnosis»(ref-267923-S16575275542007101700000) for an overview of the diagnostic approach.
3. «Diagnostic Procedure Instructions»(ref-267923-S13300682012007101700000) provides an overview of each diagnostic category.

Conditions for Running the Test

The following conditions must be met in order to enable the Service Bay Test

1. The battery voltage is between 11-18 volts.
2. The engine coolant temperature (ECT) is less than 70°C (158°F) at start-up.
3. The EVAP I/M system status indicator is set to NO.
4. The fuel level is 15-85 percent capacity and cannot be refueled during the tests.
5. There are no DTCs displayed.
6. The vehicle must be driven for the time and distance specified on the scan tool.
7. The ambient air temperature is between 0-40°C (32-104°F)
8. The ignition must remain OFF during the engine OFF portion of the test, and the vehicle must remain at rest.

Test Procedure

1. Install a scan tool.
2. Select the Service Bay Test with the scan tool.
3. Follow the instructions on the scan tool. If the test aborts, correct the condition for running the test and then retest. If the test fails, repair the vehicle for the condition indicated by the failure message on the scan tool.
4. Verify that the EVAP I/M system status is set to YES.

1. Perform the «Diagnostic System Check - Vehicle»(ref-267923-S26873286382007101700000) prior to using this diagnostic procedure.
2. Review «Strategy Based Diagnosis»(ref-267923-S16575275542007101700000) for an overview of the diagnostic approach.
3. «Diagnostic Procedure Instructions»(ref-267923-S13300682012007101700000) provides an overview of each diagnostic category.

Diagnostic Aids

Inspect for any of the following conditions

1. Insufficient fuel can cause a no start condition. Thoroughly inspect the fuel delivery system for sufficient fuel volume to the fuel injectors. Inspect the fuel supply components for partial blockage or restrictions.
2. Fuel injectors with partially blocked and restricted nozzles, or a malfunctioning solenoid, can cause a no start condition. Refer to «DTC P0201, P0202, P0203, P0204, P0261, P0262, P0264, P0265, P0267, P0268, P0270, P0271, or P2146-P2157»(ref-267951-S39068576622007101700000) .
3. There may be fuel spray at the fuel injectors and the indicated fuel pressure may be correct, yet there may not be enough fuel to start the engine. If the fuel injectors and the injector circuit are OK, and fuel spray is detected, the fuel injector ON time may be inadequate. If the engine control module (ECM) receives incorrect inputs from the various information sensors, the fuel delivered by the fuel injectors may be inadequate to start the engine. Check all the engine data parameters with a scan tool and compare the values indicated with the expected values or the values from a known good vehicle.
4. Check the crankshaft position (CKP) sensor engine reference signal with a scan tool. Observe the Engine Speed parameter while cranking the engine. The scan tool should indicate a steady 200-300 RPM while cranking. If erratic values, such as sudden spikes in the engine speed are displayed, the engine reference signal is not stable enough for the engine to start and run properly.
5. Inspect the engine for good secure electrical grounds.
6. If the engine almost starts and then stalls, check for an open in the ground circuits of the CKP sensor and the camshaft position (CMP) sensor.
7. Water or foreign material in the fuel can cause a no start or engine will not stay running condition. During freezing weather water can freeze inside the fuel system. The engine may start after 30 minutes in a heated repair shop. The malfunction may not recur until parked overnight in freezing temperatures. Extreme weather conditions can cause contaminated fuel to prevent the vehicle from starting.
8. A vehicle that starts and runs after being brought to the repair shop for a no start condition, may have an ignition system that is susceptible to moisture. Spray water on the ignition system components and the wiring in order to check for an engine starting or will not stay running concern.

1. Perform the «Diagnostic System Check - Vehicle»(ref-267923-S26873286382007101700000) prior to using this diagnostic procedure.
2. Review «Strategy Based Diagnosis»(ref-267923-S16575275542007101700000) for an overview of the diagnostic approach.
3. «Diagnostic Procedure Instructions»(ref-267923-S13300682012007101700000) provides an overview of each diagnostic category.

Diagnostic Fault Information

Fuel Pump Electrical Circuit Diagnosis

The following conditions may cause the fuel pump fuse to open

1. The fuse is faulty.
2. There is an intermittent short to ground in the supply voltage circuit of the fuel pump.
3. The fuel pump has an intermittent internal condition.

1. Ignition OFF, disconnect the fuel pump relay.
2. Test for less than 5 ohms of resistance between the ground circuit and ground. If greater than the specified range, test the ground circuit for an open/high resistance.
3. Connect a test lamp between the fuel pump relay control circuit and the ground circuit. Command the fuel pump relay ON and OFF with a scan tool. The test lamp should turn ON and OFF when changing between the commanded states. If the test lamp is always ON, test the control circuit for a short to voltage. If the circuit tests normal, replace the ECM. If the test lamp is always OFF, test the control circuit for a short to ground or an open/high resistance. If the circuit tests normal, replace the ECM.
4. Inspect the fuel pump fuse. If the fuel pump fuse is open, test for the following conditions: A short to ground in the relay switch B+ circuit A short to ground in the supply voltage circuit of the fuel pump If the above circuits test normal, replace the fuel pump module.
5. Verify that a test light illuminates between the B+ circuit and ground. If the test lamp does not illuminate, test the B+ circuit for an open/high resistance.
6. Connect a 15A fused jumper wire between the B+ circuit and the supply voltage circuit of the fuel pump. Verify the fuel pump is activated. If the fuel pump does not activate, test for the following conditions: An open/high resistance in the supply voltage circuit of the fuel pump An open/high resistance in the ground circuit of the fuel pump If the above circuits test normal, replace the fuel pump module.
7. If all circuits test normal, test or replace the fuel pump relay.

Component Testing

1. Measure for 70-110 ohms of resistance between terminals 85 and 86 of the fuel pump relay. If the resistance is not within the specified range, replace the fuel pump relay.
2. Measure for infinite resistance between the following terminals of the fuel pump relay: 30 and 86 30 and 87 30 and 85 85 and 87 If continuity is detected, replace the fuel pump relay.
3. Connect a 15A fused jumper wire from the positive terminal of the battery to relay terminal 85. Connect a jumper wire from the negative terminal of the battery to relay terminal 86. Measure for less than 2 ohms between terminals 30 and 87 of the relay. If the resistance measures more than 2 ohms, replace the fuel pump relay.

1. Perform the «Diagnostic System Check - Vehicle»(ref-267923-S26873286382007101700000) prior to using this diagnostic procedure.
2. Review «Strategy Based Diagnosis»(ref-267923-S16575275542007101700000) for an overview of the diagnostic approach.
3. «Diagnostic Procedure Instructions»(ref-267923-S13300682012007101700000) provides an overview of each diagnostic category.

1. Ignition ON, engine OFF, command the fuel pump relay ON with a scan tool and observe the fuel pressure gage while the fuel pump is operating. Verify the fuel pressure is between 345-414 kPa (50-60 psi). If the fuel pressure is greater than the specified range, replace the fuel pump module. If the fuel pressure is less than the specified range, test, inspect, and repair the items listed below. If all items test normal, replace the fuel pump module. Restricted fuel feed pipe Restricted or plugged strainer Inspect the harness connectors and the ground circuits of the fuel pump for poor connections.
2. Verify that the fuel pressure does not decrease more than 34 kPa (5 psi) in 1 minute. If the fuel pressure decreases more than the specified value, perform the following procedure: Ignition OFF, relieve the fuel pressure. Refer to «Fuel Pressure Relief»(ref-267939-S23308772952007101700000) . Disconnect the chassis fuel feed hose from the engine compartment fuel pipe. Refer to «Metal Collar Quick Connect Fitting Service»(ref-267939-S17344391252007101700000) . Install the J 37287 between the chassis fuel hose and the engine compartment fuel pipe. See «Special Tools»(ref-267939-S24871442622007101700000) . Open the valve on the J 37287 . See «Special Tools»(ref-267939-S24871442622007101700000) . Ignition ON, command the fuel pump relay ON with a scan tool and bleed the air from the CH-48027 . See «Special Tools»(ref-267939-S24871442622007101700000) . Command the fuel pump relay ON with a scan tool. Close the valve on the J 37287 . See «Special Tools»(ref-267939-S24871442622007101700000) . Monitor the fuel pressure for 1 minute. If the fuel pressure does not decrease more than 34 kPa (5 psi) within the specified time, replace the fuel pump module.
3. Relieve the fuel pressure to 69 kPa (10 psi). Verify that the fuel pressure does not decrease more than 14 kPa (2 psi) in 5 minutes. If the fuel pressure decreases more than the specified value, replace the fuel pump module.
4. Operate the vehicle within the conditions of the customer's concern while monitoring the fuel pressure with the CH-48027 . See «Special Tools»(ref-267939-S24871442622007101700000) . The fuel pressure should not drop off during acceleration, cruise, or hard cornering. If the fuel pressure drops off, test, inspect, and repair the items listed below. If all items test normal, replace the fuel pump module. Restricted fuel feed pipe Restricted or plugged strainer Inspect the harness connectors and the ground circuits of the fuel pump for poor connections.
5. If the fuel system tests normal, refer to «Symptoms - Engine Controls»(ref-267947-S16767043092007101700000) .

1. Perform the «Diagnostic System Check - Vehicle»(ref-267923-S26873286382007101700000) prior to using this diagnostic procedure.
2. Review «Strategy Based Diagnosis»(ref-267923-S16575275542007101700000) for an overview of the diagnostic approach.
3. «Diagnostic Procedure Instructions»(ref-267923-S13300682012007101700000) provides an overview of each diagnostic category.

1. Operate the vehicle under the condition of the customer concern. Under high temperature conditions fuel vapors may increase to the point of EVAP canister vapor saturation. Fuel vapors would then be released into the atmosphere. Once the engine is running and the EVAP purge is enabled, all fuel vapor release would be eliminated.
2. Movement of the EVAP pipes or the fuel pipes may help find an intermittent condition.
3. If the fuel level is low, a liquid fuel leak may not be evident.

System Testing

1. Remove the fuel pump module access cover.
2. Ignition OFF, install the J 41413-200 (J 41413-100) and the GE-41415-50 . See «Special Tools»(ref-267939-S24871442622007101700000) . Test for a fuel leak while the system is under pressure referring to the J 41413-210 Operation Manual.
3. Using the J 41413-200 (J 41413-100) and the J 41413-210 Operation Manual, introduce smoke into the evaporative emission (EVAP) system. See «Special Tools»(ref-267939-S24871442622007101700000) . Inspect for leaks in any of the following locations: The fuel tank, the fill limiter vent valve, the pressure relief valve, and the grade vent valve The fuel pump module housing, the fuel pump module seal, the fuel pipe, and the EVAP pipes The fuel tank pressure (FTP) sensor seal The fuel fill pipe and hose

Alcohol in Fuel Testing with Special Tool

1. Test the fuel composition using J 44175 and Instruction Manual. See «Special Tools»(ref-267939-S24871442622007101700000) .
2. If water appears in the fuel sample, clean the fuel system.
3. Subtract 50 from the reading on the DMM in order to obtain the percentage of alcohol in the fuel sample.
4. If the fuel sample contains more than 15 percent ethanol, add fresh, regular gasoline to the vehicle's fuel tank.
5. Test the fuel composition.
6. If testing shows the ethanol percentage is still more than 15 percent, replace the fuel in the vehicle.

Alcohol in Fuel Testing without Special Tool

1. Using a 100 ml (3.38 oz) specified cylinder with 1 ml (0.034 oz) graduation marks, fill the cylinder with fuel to the 90 ml (3.04 oz) mark.
2. Add 10 ml (0.34 oz) of water in order to bring the total fluid volume to 100 ml (3.38 oz) and install a stopper.
3. Shake the cylinder vigorously for 10-15 seconds.
4. Carefully loosen the stopper in order to release the pressure.
5. Re-install the stopper and shake the cylinder vigorously again for 10-15 seconds.
6. Put the cylinder on a level surface for approximately 5 minutes in order to allow adequate liquid separation. If alcohol is present in the fuel, the volume of the lower layer, which would now contain both alcohol and water, will be more than 10 ml (0.34 oz). For example, if the volume of the lower layer is increased to 15 ml (0.51 oz), this indicates at least 5 percent alcohol in the fuel. The actual amount of alcohol may be somewhat more because this procedure does not extract all of the alcohol from the fuel.

Particulate Contaminants in Fuel Testing Procedure

1. Using an approved fuel container, draw approximately 0.5 liter (0.53 qt) of fuel.
2. Place the container on a level surface for approximately 5 minutes in order to allow settling of the particulate contamination. Particulate contamination will show up in various shapes and colors. Sand will typically be identified by a white or light brown crystals. Rubber will appear as black and irregular particles.
3. Observe the fuel sample. If any physical contaminants or water are present, clean the fuel system.

1. Perform the «Diagnostic System Check - Vehicle»(ref-267923-S26873286382007101700000) prior to using this diagnostic procedure.
2. Review «Strategy Based Diagnosis»(ref-267923-S16575275542007101700000) for an overview of the diagnostic approach.
3. «Diagnostic Procedure Instructions»(ref-267923-S13300682012007101700000) provides an overview of each diagnostic category.

1. Depending on the location in the spliced ignition voltage circuit, a slight resistance can cause a misfire or a crank/no start concern. To pinpoint this condition perform a voltage drop test on the circuit.
2. Extended engine cranking time, may foul the spark plugs with excessive fuel and cause a crank/no start condition.
3. The ECM will set a misfire DTC for a high resistance or an open on the ignition control (IC) circuits.

1. Ignition OFF, disconnect the ignition coil/module harness connector at the affected ignition coil/modules.
2. Ignition OFF, test for less than 5 ohms of resistance between the ground circuit terminal 1 and ground. If greater than the specified value, test the ground circuit for an open/high resistance.
3. Ignition OFF, test for less than 5 ohms of resistance between the low reference circuit terminal 2 and ground. If greater than the specified value, test the low reference circuit for an open/high resistance. If the circuit tests normal, replace the ECM.
4. Ignition ON, verify that a test lamp illuminates between the ignition circuit terminal 4 and ground. If the test lamp does not illuminate, test the ignition circuit for a short to ground or an open/high resistance.
5. Ignition OFF, disconnect the ECM.
6. Ignition OFF, test for less than 5 ohms of resistance between the ignition control (IC) circuit terminal 3 and the ECM. If greater than the specified value, test the circuit for an open/high resistance.
7. Ignition OFF, connect the ECM.
8. Exchange the affected ignition coil/module with the ignition coil/module of a good cylinder.
9. Start the engine, observe the scan tool Misfire Current Cylinder parameters. If the misfire transfers with the suspect ignition coil/module, replace as needed. If the misfire does not transfer with the suspect ignition coil/module, refer to the Component Testing procedures below, and replace the spark plug if necessary. If the misfire does not transfer with the suspect ignition coil/module, and the Component Testing procedures do not isolate a fault, replace the ECM.

1. Use the Spark Plug Inspection procedure to verify the integrity of the spark plugs. Refer to «Spark Plug Inspection»(ref-267935-S22978523102007101700000) .
2. Use the J 26792 Spark Tester to verify the output of each ignition coil/module. See «Special Tools»(ref-267939-S24871442622007101700000) .

1. Perform the «Diagnostic System Check - Vehicle»(ref-267923-S26873286382007101700000) prior to using this diagnostic procedure.
2. Review «Strategy Based Diagnosis»(ref-267923-S16575275542007101700000) for an overview of the diagnostic approach.
3. «Diagnostic Procedure Instructions»(ref-267923-S13300682012007101700000) provides an overview of each diagnostic category.

1. Observe the Engine DTC information with a scan tool. If a DTC is set that would prevent the I/M System Status tests from completing, diagnose that DTC before continuing. Refer to «Inspection/Maintenance (I/M) System DTC Table»(ref-267947-S35694011712007101700000) .
2. Review applicable service bulletins for software updates that would prevent the I/M System Status tests from completing. If a control module re-program or other repair is required, perform the «Inspection/Maintenance (I/M) Complete System Set Procedure»(ref-267947-S23955105702007101700000) .
3. Observe the I/M System Status indicators. If any I/M System Status indicators report NO, perform the «Inspection/Maintenance (I/M) Complete System Set Procedure»(ref-267947-S23955105702007101700000) .

1. Perform the «Diagnostic System Check - Vehicle»(ref-267923-S26873286382007101700000) prior to using this diagnostic procedure.
2. Review «Strategy Based Diagnosis»(ref-267923-S16575275542007101700000) for an overview of the diagnostic approach.
3. «Diagnostic Procedure Instructions»(ref-267923-S13300682012007101700000) provides an overview of each diagnostic category.

Inspection/Maintenance (I/M) System Set Procedure

1. Ensure that the vehicle meets the conditions for a cold start listed above. If the evaporative emission (EVAP) I/M System Status indicator displays NO, perform the EVAP Service bay test if applicable. If the EVAP Service Bay Test is NOT available, it may take up to 6 drive cycles, with up to 17 hours between drive cycles, for the EVAP I/M System Status indicator to transition to YES. If the O2S Heater System Status indicator displays NO, ensure that the ignition has been turned OFF for at least 10 hours.
2. Turn OFF all accessories; HVAC system, other electrical loads, including aftermarket/add-on equipment, etc.
3. Set the vehicle parking brake and ensure the vehicle is in park for automatic transmission or neutral for manual transmission.
4. Turn the ignition ON with the engine OFF for 1 minute.
5. Start and idle the engine for 2 minutes and until 65°C (149°F) is achieved.
6. Run the engine for 8 minutes within the following conditions: MAF parameter between 4-30 g/s Engine speed steady between 1,000-3,000 RPM
7. Apply and hold brake pedal, and shift to Drive for automatic, or apply clutch pedal for manual and operate the vehicle within the following conditions for 2 minutes: Mass air flow (MAF) signal between 15-30 g/s RPM steady between 1,200-1,500 RPM
8. Release the accelerator pedal and allow the engine to idle for 2 minutes.
9. Release the parking brake and drive vehicle at 24 km/h (15 mph) or slower for 2 minutes.
10. Continue to drive the vehicle for at least 5.5 miles between 45 km/h-112 km/h (28-70 mph) with the vehicle reaching at least 80 km/h (50 mph).
11. Safely stop the vehicle, apply the parking brake and shift to Park for automatic, or Neutral and release clutch pedal for manual.
12. Turn OFF the ignition and exit the vehicle. Do NOT disturb the vehicle for 45 minutes.
13. Observe the I/M System Status with a scan tool. All of the I/M System Status indicators should display YES. If the EVAP I/M System Status indicator displays NO turn OFF the ignition for 17 hours, ensure that the vehicle meets the conditions for a cold start, and repeat steps 10-13 six more times, or until the EVAP I/M System Status indicator transitions to YES. If the indicator continues to display NO, refer to the «Inspection/Maintenance (I/M) System DTC Table»(ref-267947-S35694011712007101700000) to identify the DTCs that did not run. If any of the I/M System Status indicators display NO, refer to the «Inspection/Maintenance (I/M) System DTC Table»(ref-267947-S35694011712007101700000) for the indicator which did not display YES. The I/M System DTC Table identifies the DTCs associated with each I/M System Status Indicator.

Inspection/Maintenance (I/M) System DTC Table

Inspection/Maintenance (I/M) System DTC Table