DTC P0171: 1/1 Fuel System Lean Or DTC P0174: 2/2 Fuel System Lean: Notes

NOTE: All fuel system lean DTCs listed are diagnosed using the same test. For component location, see COMPONENT LOCATIONS . For connector identification, see CONNECTOR IDENTIFICATION . For circuit identification and wiring diagram, see WIRING DIAGRAMS . In testing procedures, Alpha/Numeric character in parenthesis i.e. (K4) designates circuit. 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.