Tag: VOLKSWAGEN

Possible causes – Intake manifold runner control mechanical problems – Intake manifold runner control actuator malfunction – Intake manifold runner control open or short circuit – Intake manifold runner control poor electrical condition Symptoms – Engine Light ON (or Service Engine Soon Warning Light) P2004 VOLKSWAGEN OBD Code Description The Engine Control Module (ECM) detects…

Possible causes – Intake manifold runner control mechanical problems – Intake manifold runner control actuator malfunction – Intake manifold runner control open or short circuit – Intake manifold runner control poor electrical condition Symptoms – Engine Light ON (or Service Engine Soon Warning Light) P2008 VOLKSWAGEN OBD Code Description The Engine Control Module (ECM) detects…

Possible causes – Leaking fuel injector or pressure regulator– High fuel pressure condition– Faulty Oxygen (O2) Sensor– Faulty Mass Air Flow (MAF) sensor Symptoms – Engine Light ON (or Service Engine Soon Warning Light)

Possible causes – Leaking or stuck open thermostat– Low engine coolant level– Insufficient warm up time– Faulty engine coolant temperature sensor– Engine coolant temperature sensor harness is open or shorted– Engine coolant temperature sensor circuit poor electrical connection Tech description If cooling system is not leaking and the fluid level is OK, replacing the thermostat…

Possible causes – HO2S Bank 1 and 2 Sensor 1 harness is open or shorted– HO2S Bank 1 and 2 Sensor 1 circuit connectors (wrong connection)– Faulty Engine Control Module (ECM) Symptoms – Engine Light ON (or Service Engine Soon Warning Light) P0040 VOLKSWAGEN OBD Code Description The heated oxygen sensor (HO2S) monitor determines if…

Possible causes – HO2S Bank 1 and 2 Sensor 2 harness is open or shorted– HO2S Bank 1 and 2 Sensor 2 circuit connectors (wrong connection)– Faulty Engine Control Module (ECM) Symptoms – Engine Light ON (or Service Engine Soon Warning Light) P0041 VOLKSWAGEN OBD Code Description The heated oxygen sensor (HO2S) monitor determines if…

Possible causes – Injector Circuit Cylinder 5 harness is open or shorted– Faulty Injector Circuit Cylinder 5 Symptoms – Engine Light ON (or Service Engine Soon Warning Light)

Possible causes – Intake air leak– Faulty O2 Sensor– Faulty Mass Air Flow (MAF) Sensor– O2 Sensor harness is open or shorted– O2 Sensor circuit poor electrical connection Tech description 2002 Volkswagen Passat User Submitted Video Symptoms – Engine Light ON (or Service Engine Soon Warning Light)

Possible causes – Intake air leak– Faulty O2 Sensor– Faulty Mass Air Flow (MAF) Sensor– O2 Sensor harness is open or shorted– O2 Sensor circuit poor electrical connection Tech description 2002 Volkswagen Passat User Submitted Video Symptoms – Engine Light ON (or Service Engine Soon Warning Light)

Possible causes – Intake air leaks– Faulty front heated oxygen sensor– Ignition misfiring – Faulty fuel injectors – Exhaust gas leaks– Incorrect fuel pressure– Lack of fuel– Faulty Mass Air Flow (MAF) sensor– Incorrect Positive Crankcase Ventilation (PCV) hose connection Tech description If the P0174 is combined with the P0171 code, it’s very likely that…