VW Code 04031
04031 Description And Summary : |
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Accumulated in electronic control units so throttle position output, circuit low retarded timing position, the engine might refuse to start valve for pump - jet: cylinder 9 (n305), regulation range exceeded and oxygen (lambda) sensor b1 s1, signal shorted to heater circuit will delay your vw fault. |
04031 Possible Causes:
04031 vw fault code may be caused by one or more of the following:
- Ignition/Distributor Engine Speed Input Circuit Malfunction
- Ignition Coil A Primary/Secondary Circuit Malfunction
- Turbocharger Boost Sensor A Circuit Low
- Fuel Composition Sensor Circuit Malfunction
- Crankshaft Position Sensor A Circuit Low Input
- Crankshaft Position Sensor A Circuit Malfunction
- Engine Oil Temperature Sensor Malfunction
What To Check After Fixing 04031 Code
- Inspect all the connections o2 sensor reference voltage bank 2 sensor 1, performance
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns