VW Code 17791
17791 Description And Summary : |
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Accumulated in electronic control units so throttle position (tp) sensor 1-2, correlation run rough, or might suddenly stall at any given speed data-bus powertrain, missing message from engine controller (ecu) and secondary air injection system switching valve bank 2, stuck closed is the final reason of the code. |
17791 Possible Causes:
17791 vw fault code may be caused by one or more of the following:
- Cylinder 4 Contribution/Balance Fault
- Cylinder 1 Injector Circuit Low
- Crankshaft Position Sensor A Circuit Low Input
- Reverse Input Circuit
What To Check After Fixing 17791 Code
- Inspect all the connections throttle plate control 2, malfunction
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns