Tag: VOLKSWAGEN

Possible causes – Three way catalyst converter Bank 1– Exhaust tube– Intake air leaks– Fuel injectors may be faulty– Fuel injector leaks– Spark plugs may be faulty– Improper ignition timing– Engine Control Module (ECM) Tech description As the code description implies the P0421 code means that the vehicle’s control module has detected that the three-way…

Possible causes – Three way catalyst converter Bank 2– Exhaust tube– Intake air leaks– Fuel injectors may be faulty– Fuel injector leaks– Spark plugs may be faulty– Improper ignition timing– Engine Control Module (ECM) Tech description As the code description implies the P0430 code means that the vehicle’s control module has detected that the three-way…

Possible causes – Throttle Position Sensor (TPS) harness is open or shorted– Throttle Position Sensor (TPS) circuit poor electrical connection– Faulty Throttle Position Sensor (TPS)– Fault Electric Throttle Control Actuator (or Throttle Body Motor)– Accelerator Pedal Position Sensor (APP) When is the obd code mean? An unexpected voltage from the Throttle Position Sensor (TPS) is…

Possible causes – Throttle Position Switch (TPS) Adjustment– Faulty Throttle Position Switch (TPS)– Throttle Position Switch (TPS) harness open or shorted– Throttle Position Switch (TPS) circuit poor electrical connection Symptoms – Engine Light ON (or Service Engine Soon Warning Light)– Engine idle problems– Possible hard to start– Possible shifting problems

Possible causes – Timing belt installation– Faulty Camshaft Adjustment Valve 1– Camshaft Adjustment Valve 1 harness is open or shorted– Camshaft Adjustment Valve 1 circuit poor electrical connection Symptoms – Engine Light ON (or Service Engine Soon Warning Light)

Possible causes – Open or short circuit condition– Poor electrical connection– Faulty Boost Sensor Symptoms – Engine Light ON (or Service Engine Soon Warning Light)

Possible causes – Open or short cooling fan 1 relay circuit– Failed Cooling Fan Control Module Symptoms – Engine Light ON (or Service Engine Soon Warning Light)– Radiator fan inoperative– Possible engine overheating

Possible causes – Open or short transmission control system circuit– Poor transmission control system electrical connection– Check powers and grounds to Transmission Control Module (TCM) Symptoms – Engine Light ON (or Service Engine Soon Warning Light)

Possible causes – Missing Fuel cap– Incorrect fuel filler cap used– Fuel filler cap remains open or fails to close– Foreign matter caught in fuel filler cap– Incorrect fuel tank vacuum relief valve Tech description The P0441 code means that the control module has detected a leak in the Evaporative Emission (EVAP). Loose fuel tank…

Possible causes – Missing or loose fuel cap– Incorrect fuel filler cap used– Fuel filler cap remains open or fails to close– Foreign matter caught in fuel filler cap– EVAP canister or fuel tank leaks– EVAP system hose leaking– Fuel tank leaking Tech description The P0440 code means that the control module has detected a…