P0207 GMC Injector 7 Control Circuit

Possible causes – Faulty fuel injector 7– Fuel Injector 7 harness is open or shorted– Fuel injector 7 circuit poor electrical connection When is the obd code mean? If an electrical malfunction occurs in the fuel injector circuit for engine cylinder #7, the ignition feed driver signals the Powertrain Control Module (PCM) to set the…

P0208 GMC Injector 8 Control Circuit

Possible causes – Faulty fuel injector 8– Fuel Injector 8 harness is open or shorted– Fuel injector 8 circuit poor electrical connection When is the obd code mean? If an electrical malfunction occurs in the fuel injector circuit for engine cylinder #8, the ignition feed driver signals the Powertrain Control Module (PCM) to set the…

P0200 GMC Injector Circuit Malfunction

Possible causes – Faulty fuel injector– Fuel Injector harness is open or shorted– Fuel injector circuit poor electrical connection When is the obd code mean? If the Powertrain Control Module (PCM) detects an incorrect voltage for the commanded state of the driver, a fuel injector control code will set. Symptoms – Engine Light ON (or…

P0656 GMC Fuel Level Output Circuit Malfunction

Possible causes – Faulty Fuel Level Gauge– Fuel Level Gauge harness is open or shorted– Fuel Level Gauge circuit poor electrical connection– Faulty Powertrain Control Module (PCM) When is the obd code mean? If the fault detection circuit senses a voltage other than what the PCM expects, the fault line status changes causing the P0656…

P0462 GMC Fuel Level Sensor Circuit Low Input

Possible causes – Faulty fuel level sensor– Fuel level sensor harness is open or shorted– Fuel level sensor circuit poor electrical connection Tech description Low fuel level can trigger this code. Before replacing any parts try filling up the fuel tank and erasing the engine code. If the problem persist it may be necessary to…

P0463 GMC Fuel Level Sensor Circuit High Input

Possible causes – Faulty fuel level sensor– Fuel level sensor harness is open or shorted– Fuel level sensor circuit poor electrical connection When is the obd code mean? An excessively high voltage is sent from the sensor is sent to Engine Control Module (ECM). Symptoms – Engine Light ON (or Service Engine Soon Warning Light)–…

P0461 GMC Fuel Level Sensor Circuit Range/Performance

Possible causes – Faulty fuel level sensor– Fuel level sensor harness is open or shorted– Fuel level sensor circuit poor electrical connection When is the obd code mean? The output signal of the fuel level sensor does not change within the specified range even though the vehicle has been driven a long distance. Symptoms –…

P0090 GMC Fuel Pressure Regulator Control Circuit

Possible causes – Faulty fuel pressure sensor– Fuel pressure sensor harness is open or shorted– Fuel pressure sensor electrical circuit poor connection– Faulty Engine Control Module (ECM) When is the obd code mean? If the current is outside of the expected range, DTC P0090 will set. Symptoms – Engine Light ON (or Service Engine Soon…

P0089 GMC Fuel Pressure 1 Control Performance

Possible causes – Faulty fuel pressure sensor– Fuel pressure sensor harness is open or shorted– Fuel pressure sensor electrical circuit poor connection– Faulty Engine Control Module (ECM) When is the obd code mean? If the fuel rail pressure sensor indicates a pressure more than 20 MPa greater than desired, diagnostic trouble code (DTC) P0089 will…

P0230 GMC Fuel Pump Relay Control Circuit

Possible causes – Faulty Fuel Pump Relay– Fuel Pump Relay harness is open or shorted– Fuel Pump Relay circuit poor electrical connection– Faulty Powertrain Control Module (PCM) When is the obd code mean? The P0230 code will be set when the Powertrain Control Module (PCM) detects the fuel pump control circuit is shorted to ground….