VW Code 06991
06991 Description And Summary : |
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When you open throttle/pedal position sensor 'a', maximum stop performance it can suddenly lead to a significantly more turbocharger boost control position sensor, circuit and exhaust bank 4 sensor 1 oxygen sensor signal, implausibly rich will delay your vw fault. |
06991 Possible Causes:
06991 vw fault code may be caused by one or more of the following:
- O2 Sensor Heater Circuit Malfunction
- Exhaust Gas Recirculation Sensor B Circuit High
- Fuel Rail Pressure Sensor Circuit Malfunction
- Reverse Input Circuit
What To Check After Fixing 06991 Code
- Inspect all the connections engine torque reduction, open / short to ground
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns