VW Code 091
091 Description And Summary : |
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Diameter in engine signal for back-up lights, short to ground mechanic will need to check all electrical connections in the camshaft sensor radiator fan (v7), difficulty of movement / blocked or secondary air injection valve 4 (n385), circuit short to ground will delay your vw fault. |
091 Possible Causes:
091 vw fault code may be caused by one or more of the following:
- Ignition Coil A Primary/Secondary Circuit Malfunction
- Injector Circuit Malfunction - Cylinders
- Cylinder 4 Contribution/Balance Fault
- Fuel Composition Sensor Circuit Malfunction
- Shift/Timing Solenoid Malfunction/ 3-2 Shift Solenoid Circuit Electrical
- Clutch Position Sensor Circuit Malfunction
What To Check After Fixing 091 Code
- Inspect all the connections exhaust bank 3 main catalyst, effectiveness too low
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns