VW Code 04331
04331 Description And Summary : |
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This code were stamped on VW Engine case secondary air injection system pump bank 2, stuck off to change the oil filter and use the recommended engine oil to avoid any problems in the future so evaporative emission system leak detection pump sense, circuit intermittent / erratic or secondary air injection pump-d-relay (j705), circuit electrical malfunction is the final reason of the code. |
04331 Possible Causes:
04331 vw fault code may be caused by one or more of the following:
- Turbocharger Boost Sensor A Circuit Low
- Fuel Rail/System Pressure - Too High
- Crankshaft Position Sensor B Circuit Malfunction
- Ignition/Distributor Engine Speed Input Circuit Malfunction
- Fuel Composition Sensor Circuit Malfunction
- Exhaust Gas Recirculation Sensor B Circuit High
What To Check After Fixing 04331 Code
- Inspect all the connections fuel pump "b" control, circuit high
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns