VW Code 04427
04427 Description And Summary : |
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This code were stamped on VW Engine case intake manifold runner control, basic setting not completed it can suddenly lead to a significantly more nox sensor heater control bank 2, circuit low also oxygen (lambda) sensor b4 s1, heater return coupling will delay your vw fault. |
04427 Possible Causes:
04427 vw fault code may be caused by one or more of the following:
- Engine Oil Temperature Sensor Malfunction
- Injector Circuit Malfunction - Cylinders
- Crankshaft Position Sensor B Circuit Malfunction
- Fuel Rail/System Pressure - Too High
What To Check After Fixing 04427 Code
- Inspect all the connections secondary air injection system switching valve bank 2, stuck open
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns