P2122 INFINITI Accelerator Pedal Position Sensor Circuit Range/Performance

Possible causes – Faulty Accelerator Pedal Position Sensor– Accelerator Pedal Position Sensor harness is open or shorted– Accelerator Pedal Position Sensor circuit poor electrical connection Symptoms – Engine Light ON (or Service Engine Soon Warning Light)– No Accelerator Pedal respsonse P2122 INFINITI OBD Code Description The Accelerator Pedal Position (APP) sensor is installed on the…

P2123 INFINITI Accelerator Pedal Position Sensor Circuit Range/Performance

Possible causes – Faulty Accelerator Pedal Position Sensor– Accelerator Pedal Position Sensor harness is open or shorted– Accelerator Pedal Position Sensor circuit poor electrical connection Symptoms – Engine Light ON (or Service Engine Soon Warning Light)– No Accelerator Pedal respsonse P2123 INFINITI OBD Code Description The Accelerator Pedal Position (APP) sensor is installed on the…

P2138 INFINITI Accelerator Pedal Position Sensor Circuit Range/Performance

Possible causes – Faulty Accelerator Pedal Position Sensor– Accelerator Pedal Position Sensor harness is open or shorted– Accelerator Pedal Position Sensor circuit poor electrical connection– Faulty Electric Throttle Control Actuator Symptoms – Engine Light ON (or Service Engine Soon Warning Light)– No Accelerator Pedal respsonse P2138 INFINITI OBD Code Description The Accelerator Pedal Position (APP)…

P1274 INFINITI Air Fuel Ratio Sensor 1 Rich Shift Monitoring Bank 1

Possible causes – Faulty Air fuel ratio (A/F) sensor 1 Bank 1 – Faulty Air fuel ratio (A/F) sensor 1 heater Bank 1 – Fuel pressure– Faulty Fuel injector – Faulty Air Flow Meter Tech description If one or more sensors are replaced the Engine Control Module (ECM) Mixture Ratio Self-Learning clearing procedure must be…

P1284 INFINITI Air Fuel Ratio Sensor 1 Rich Shift Monitoring Bank 2

Possible causes – Faulty Air fuel ratio (A/F) sensor 1 Bank 1 – Faulty Air fuel ratio (A/F) sensor 1 heater Bank 1 – Fuel pressure– Faulty Fuel injector – Faulty Air Flow Meter Tech description If one or more sensors are replaced the Engine Control Module (ECM) Mixture Ratio Self-Learning clearing procedure must be…

P1273 INFINITI Air Fuel Ratio Sensor 1 Lean Shift Monitoring Bank 1

Possible causes – Faulty Air fuel ratio (A/F) sensor 1 Bank 1 – Faulty Air fuel ratio (A/F) sensor 1 heater Bank 1 – Fuel pressure– Faulty Fuel injector – Intake air leaks– Faulty Air Flow Meter Tech description If one or more sensors are replaced the Engine Control Module (ECM) Mixture Ratio Self-Learning clearing…

P0131 INFINITI Air Fuel Ratio Circuit Low Bank 1 Sensor 1

Possible causes – Faulty Air fuel ratio (A/F) sensor 1 bank 1– Air fuel ratio (A/F) sensor 1 bank 1 harness is open or shorted– Air fuel ratio (A/F) sensor 1 bank 1 circuit poor electrical connection– Inappropriate fuel pressure– Faulty fuel injectors– Intake air leaks may be faulty– Exhaust gas leaks Tech description Replacing…

P0132 INFINITI Air Fuel Ratio Circuit High Bank 1 Sensor 1

Possible causes – Faulty Air fuel ratio (A/F) sensor 1 bank 1– Air fuel ratio (A/F) sensor 1 bank 1 harness is open or shorted– Air fuel ratio (A/F) sensor 1 bank 1 circuit poor electrical connection– Inappropriate fuel pressure– Faulty fuel injectors– Intake air leaks may be faulty– Exhaust gas leaks Tech description Replacing…

P1447 INFINITI Evaporative Emission Control System Purge Flow Monitor

Possible causes – EVAP canister purge volume control solenoid valve stuck closed – EVAP control system pressure sensor and the circuit – Loose, disconnected or improper connection of rubber tube – Blocked rubber tube – Cracked EVAP canister – EVAP canister purge volume control solenoid valve circuit – Closed throttle position switch – Blocked purge…

P0441 INFINITI Evaporative Control System Incorrect Purge Flow

Possible causes - EVAP canister purge volume control solenoid valve stuck closed– EVAP control system pressure sensor and the circuit- Loose, disconnected or improper connection of rubber tube- Blocked rubber tube- Cracked EVAP canister- EVAP canister purge volume control solenoid valve circuit- Accelerator pedal position sensor- Blocked purge port- EVAP canister vent control valve Tech…