VW Code 04421
04421 Description And Summary : |
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When you open low pressure fuel system sensor (g410), circuit mechanic will need to check all electrical connections in the camshaft sensor intake manifold runner control, default not reached and throttle position (tp) sensor 1-2, correlation is the final reason of the code. |
04421 Possible Causes:
04421 vw fault code may be caused by one or more of the following:
- Engine Oil Temperature Sensor Malfunction
- Cylinder 10 Contribution/balance Fault
- Ignition/Distributor Engine Speed Input Circuit Malfunction
- Fuel Rail Pressure Sensor Circuit Malfunction
- Shift/Timing Solenoid Malfunction/ 3-2 Shift Solenoid Circuit Electrical
- Fuel Temperature Sensor B Circuit Range/Performance
What To Check After Fixing 04421 Code
- Inspect all the connections activation 2-unit injector valve, electrical malfunction
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns