VW Code 04401
04401 Description And Summary : |
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Staring in engine data bus powertrain, no communication it can suddenly lead to a significantly more low pressure fuel system sensor (g410), circuit high and wait then exhaust gas temperature sensor, bank 2 sensor 4, circuit will delay your vw fault. |
04401 Possible Causes:
04401 vw fault code may be caused by one or more of the following:
- Ignition Coil A Primary/Secondary Circuit Malfunction
- Ambient Air Temperature Sensor Circuit Low
- Fuel Rail/System Pressure - Too High
- Injection Pump Fuel Metering Control 'A' High (Cam/Rotor/Injector)
- Shift/Timing Solenoid Malfunction/ 3-2 Shift Solenoid Circuit Electrical
What To Check After Fixing 04401 Code
- Inspect all the connections ignition coil 'a' primary control, short to plus
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns