DTC P0171-B: 1/1 FUEL SYSTEM LEAN 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. Manifold Absolute Pressure (MAP) sensor. Perform «TEST NTC-8A: CHECKING MAP SENSOR CALIBRATION»(ref-576-S00862455302000030800000) .
3. Engine mechanical systems. Perform «TEST NTC-13A: CHECKING ENGINE MECHANICAL SYSTEMS»(ref-576-S12119991752000030800000) .
4. Intake Air Temperature (IAT) sensor. Perform «TEST NTC-19A: CHECKING INTAKE AIR TEMPERATURE SENSOR»(ref-576-S39496676942000030800000) .