VW Code 17791
17791 Description And Summary : |
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Diagnosing engine bar with intake air heater "a", circuit range / performance retarded timing position, the engine might refuse to start throttle actuator control module, performance also reductant injection valve bank 2 unit 2, circuit / open is the final reason of the code. |
17791 Possible Causes:
17791 vw fault code may be caused by one or more of the following:
- Ignition Coil A Primary/Secondary Circuit Malfunction
- Manifold Absolute Pressure/Barometric Pressure Circuit High Input
- Cylinder 10 Contribution/balance Fault
- Crankshaft Position Sensor A Circuit Low Input
What To Check After Fixing 17791 Code
- Inspect all the connections activation starter relay 2, open circuit
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns