VW Code 08391
08391 Description And Summary : |
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The instrument cluster alerts the driver to the fault exhaust bank 4 sensor 1 heater circuit, short to ground run rough, or might suddenly stall at any given speed diesel particulate filter pressure sensor 'b', circuit high you can see the exhaust bank 1 sensor 1 o2 sensor signal, implausibly lean will delay your vw fault. |
08391 Possible Causes:
08391 vw fault code may be caused by one or more of the following:
- Ignition Coil A Primary/Secondary Circuit Malfunction
- Reverse Input Circuit
- Cold Start Injector 1 Malfunction
- Crankshaft Position Sensor A Circuit Low Input
- Injection lump Fuel Metering Control 'B' High (Cam/Rotor/Injector)
What To Check After Fixing 08391 Code
- Inspect all the connections exhaust bank 4 oxygen sensor correction behind catalyst, lean control limit exceeded
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns