DTC P0175-B: 2/1 FUEL SYSTEM RICH Chrysler LHS II

Note. For connector terminal ID, see CONNECTOR IDENTIFICATION . For wiring diagram, see WIRING DIAGRAMS article.

Inspect all O2S wiring and connectors. Repair wiring and connectors as necessary. Perform TEST VER-5A: ROAD TEST FOR OBD-II TROUBLE CODES . If wiring and connectors are okay, perform following tests in order until problem is found

1. Coolant Temperature Sensor (CTS). Perform «TEST NTC-6A: CHECKING COOLANT SENSOR CALIBRATION»(ref-576-S26822009912000030800000) .
2. Throttle Position (TP) sensor. Perform «TEST NTC-7A: CHECKING THROTTLE POSITION SENSOR CALIBRATION»(ref-576-S11007913622000030800000) .
3. Manifold Absolute Pressure (MAP) sensor. Perform «TEST NTC-8A: CHECKING MAP SENSOR CALIBRATION»(ref-576-S00862455302000030800000) .
4. Engine mechanical systems. Perform «TEST NTC-13A: CHECKING ENGINE MECHANICAL SYSTEMS»(ref-576-S12119991752000030800000) .
5. Evaporative emission system. Perform «TEST NTC-17A: CHECKING EVAPORATIVE EMISSIONS SYSTEMS»(ref-576-S08130678612000030800000) .
6. Exhaust Gas Recirculation (EGR) system. Perform «TEST NTC-18A: CHECKING EGR SYSTEM»(ref-576-S38852971652000030800000) .
7. Intake Air Temperature (IAT) sensor. Perform «TEST NTC-19A: CHECKING INTAKE AIR TEMPERATURE SENSOR»(ref-576-S39496676942000030800000)