Possible causes – Faulty front heated oxygen sensor– Ignition misfiring– Faulty fuel injectors– Exhaust gas leaks– Incorrect fuel pressure– Faulty Mass Air Flow (MAF) sensor When is the code detected? – Fuel injection system does not operate properly.– The amount

Possible causes – Faulty Fuel Level Sensor– Fuel Level Sensor harness is open or shorted– Fuel Level Sensor circuit poor electrical connection – Faulty combination meter When is the code detected? Even though the vehicle is parked, a signal being

Possible causes – Faulty fuel level sensor– Fuel level sensor harness is open or shorted– Fuel level sensor circuit poor electrical connection Tech notes Low fuel level can trigger this code. Before replacing any parts try filling up the fuel

Possible causes – Faulty fuel level sensor– Fuel level sensor harness is open or shorted– Fuel level sensor circuit poor electrical connection When is the code detected? An excessively high voltage is sent from the sensor is sent to Engine

Possible causes – Faulty fuel level sensor– Fuel level sensor harness is open or shorted– Fuel level sensor circuit poor electrical connection When is the code detected? An intermittent low voltage is sent from the sensor is sent to Engine

Possible causes – Faulty fuel level sensor– Fuel level sensor harness is open or shorted– Fuel level sensor circuit poor electrical connection When is the code detected? The output signal of the fuel level sensor does not change within the

Possible causes – Faulty Fuel Temperature Sensor– Fuel Temperature Sensor harness is open or shorted– Fuel Temperature Sensor circuit poor electrical connection When is the code detected? An excessively high voltage from the sensor is sent to ECM. Symptoms –

Possible causes – Faulty Fuel Temperature Sensor– Fuel Temperature Sensor harness is open or shorted– Fuel Temperature Sensor circuit poor electrical connection When is the code detected? An excessively low voltage from the sensor is sent to ECM. Symptoms –

Possible causes – Faulty Fuel Temperature Sensor– Fuel Temperature Sensor harness is open or shorted– Fuel Temperature Sensor circuit poor electrical connection When is the code detected? Rationally incorrect voltage from the sensor is sent to ECM, compared with the

Possible causes – Faulty Heated Oxygen Sensor (H2OS) Bank 1 Sensor 1– Heated Oxygen Sensor (H2OS) Bank 1 Sensor 1 circuit fuse– Heated Oxygen Sensor (H2OS) Bank 1 Sensor 1 circuit open shorted to ground– Heated Oxygen Sensor (H2OS) Bank

Possible causes – Faulty Heated Oxygen Sensor (H2OS) Bank 1 Sensor 1– Heated Oxygen Sensor (H2OS) Bank 1 Sensor 1 harness is open shorted to ground– Heated Oxygen Sensor (H2OS) Bank 1 Sensor 1 circuit poor electrical connection– Heated Oxygen

Possible causes – Faulty Heated Oxygen Sensor (H2OS) Bank 1 Sensor 1– Heated Oxygen Sensor (H2OS) Bank 1 Sensor 1 harness is open shorted to ground– Heated Oxygen Sensor (H2OS) Bank 1 Sensor 1 circuit poor electrical connection– Heated Oxygen

Possible causes – Faulty Heated Oxygen Sensor (H2OS) Bank 1 Sensor 2– Heated Oxygen Sensor (H2OS) Bank 1 Sensor 2 circuit fuse– Heated Oxygen Sensor (H2OS) Bank 1 Sensor 2 circuit open shorted to ground– Heated Oxygen Sensor (H2OS) Bank

Possible causes – Faulty Heated Oxygen Sensor (H2OS) Bank 1 Sensor 2– Heated Oxygen Sensor (H2OS) Bank 1 Sensor 2 fuse– Heated Oxygen Sensor (H2OS) Bank 1 Sensor 2 harness is open or shorted– Heated Oxygen Sensor (H2OS) Bank 1

Possible causes – Faulty Heated Oxygen Sensor (H2OS) Bank 1 Sensor 2– Heated Oxygen Sensor (H2OS) Bank 1 Sensor 2 fuse– Heated Oxygen Sensor (H2OS) Bank 1 Sensor 2 harness is open or shorted– Heated Oxygen Sensor (H2OS) Bank 1

Possible causes – Faulty Heated Oxygen Sensor (H2OS) Bank 1 Sensor 3– Heated Oxygen Sensor (H2OS) Bank 1 Sensor 3 harness is open shorted– Heated Oxygen Sensor (H2OS) Bank 1 Sensor 3 circuit poor electrical connection– Heated Oxygen Sensor (H2OS)

Possible causes – Faulty Heated Oxygen Sensor (H2OS) Bank 1 Sensor 3– Heated Oxygen Sensor (H2OS) Bank 1 Sensor 3 harness is open shorted– Heated Oxygen Sensor (H2OS) Bank 1 Sensor 3 circuit poor electrical connection– Heated Oxygen Sensor (H2OS)

Possible causes – Faulty Heated Oxygen Sensor (H2OS) Bank 2 Sensor 1– Heated Oxygen Sensor (H2OS) Bank 2 Sensor 1 circuit fuse– Heated Oxygen Sensor (H2OS) Bank 2 Sensor 1 harness is open shorted to ground– Heated Oxygen Sensor (H2OS)

Possible causes – Faulty Heated Oxygen Sensor (H2OS) Bank 2 Sensor 1– Heated Oxygen Sensor (H2OS) Bank 2 Sensor 1 harness is open shorted– Heated Oxygen Sensor (H2OS) Bank 2 Sensor 1 circuit poor electrical connection– Heated Oxygen Sensor (H2OS)

Possible causes – Faulty Heated Oxygen Sensor (H2OS) Bank 2 Sensor 2– Heated Oxygen Sensor (H2OS) Bank 2 Sensor 2 harness is open shorted– Heated Oxygen Sensor (H2OS) Bank 2 Sensor 2 circuit poor electrical connection– Heated Oxygen Sensor (H2OS)