DTC P0171: 1/1 Fuel System Lean: Notes
NOTE:
For circuit identification and wiring diagram, see WIRING DIAGRAMS article. If Powertrain Control Module (PCM) is replaced, PCM must be reprogrammed. See PROGRAMMING
. After each repair procedure has been completed, reconnect all components. Perform POWERTRAIN VERIFICATION TEST VER-5
under VERIFICATION TESTS to ensure system is functioning properly.
NOTE:
DTC P0171 indicates 1/1 fuel system lean. 1/1 refers to upstream Heated Oxygen Sensor (HO2S). 1/1 HO2S is located on exhaust manifold.