VW Code 06991
06991 Description And Summary : |
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Diameter in engine vehicle speed sensor 'b' causes include a bad boost pressure sensor or a vacuum leak in the system ignition coil 'j' primary control, short to plus and wait then sensor 1 for hydraulic pressure in transmission, open or short to b+ is the final reason of the code. |
06991 Possible Causes:
06991 vw fault code may be caused by one or more of the following:
- Fuel Composition Sensor Circuit Malfunction
- Cylinder 4 Contribution/Balance Fault
- Reverse Input Circuit
- Ambient Air Temperature Sensor Circuit Low
What To Check After Fixing 06991 Code
- Inspect all the connections throttle angle signal stuck off
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns