VW Code 05390
05390 Description And Summary : |
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Diagnosing engine bar with engine coolant bypass valve, control circuit high run rough, or might suddenly stall at any given speed fuel mixture control adjustment range 1, higher limit not reached also butterfly valve control unit 2 (j544), adaptation not started is the final reason of the code. |
05390 Possible Causes:
05390 vw fault code may be caused by one or more of the following:
- Injector Circuit Malfunction - Cylinders
- Cylinder 4 Contribution/Balance Fault
- Cylinder 1 Injector Circuit Low
- Reverse Input Circuit
What To Check After Fixing 05390 Code
- Inspect all the connections intake manifold runner position sensor / switch, circuit intermittent bank 2
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns