Tag: CHEVROLET

Possible causes – Accelerator Pedal Position Sensor 1-2 harness is open or shorted – Accelerator Pedal Position Sensor 1-2)circuit poor electrcila connection – Faulty Accelerator Pedal Position Sensor 1-2 Symptoms – Engine Light ON (or Service Engine Soon Warning Light) – Possible poor acceleration P1271 CHEVROLET OBD Code Description

Possible causes – Air leak between the MAF sensor and throttle body– Dirty Throttle body or Mass Air Flow (MAF) sensor– Throttle Position (TP) sensor not seated properly– Faulty Throttle Position (TP) sensor– Faulty Mass Air Flow (MAF) sensor When is the obd code mean? If the PCM detects that the difference between the actual…

Possible causes – Battery charge– Faulty Generator– Generator harness is open or shorted– Generator circuit poor electrical connection– Engine Control Module (ECM) controlled generator– Faulty ECM Tech description The ECM is detecting a high turn-on voltage at times. Possible causes could be the alternator or the ECM. When is the obd code mean? The Engine…

Possible causes – Battery charge– Faulty Generator– Generator harness is open or shorted– Generator circuit poor electrical connection– Engine Control Module (ECM) controlled generator– Faulty ECM When is the obd code mean? The Engine Control Module (ECM) has fault detection circuitry which monitors the state of the generator turn on signal circuit. If the fault…