VW Code 04401
04401 Description And Summary : |
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Staring in engine control of valves pump / nozzle, mechanical errors run rough, or might suddenly stall at any given speed throttle actuator control module, performance or exhaust bank 3, probe 2 heating circuit short-circuit after pluses will delay your vw fault. |
04401 Possible Causes:
04401 vw fault code may be caused by one or more of the following:
- Engine Shutoff Solenoid Malfunction
- Fuel Rail/System Pressure - Too High
- Reverse Input Circuit
- Cylinder 1 Injector Circuit Low
- Cold Start Injector 1 Malfunction
What To Check After Fixing 04401 Code
- Inspect all the connections o2 sensor signal bank 2 sensor 1, biased / stuck rich
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns