VW Code 08391
08391 Description And Summary : |
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Diagnosing engine bar with butterfly valve control unit 2 (j544), of mechanical errors causes include a bad boost pressure sensor or a vacuum leak in the system intake manifold runner control, circuit / open bank 2 also exhaust gas temperature sensor 2 bank 2 (g449), high is the final reason of the code. |
08391 Possible Causes:
08391 vw fault code may be caused by one or more of the following:
- Reverse Input Circuit
- Fuel Composition Sensor Circuit Malfunction
- Cylinder 4 Contribution/Balance Fault
- Ambient Air Temperature Sensor Circuit Low
- Clutch Position Sensor Circuit Malfunction
What To Check After Fixing 08391 Code
- Inspect all the connections throttle position output, 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