VW Code 01791
01791 Description And Summary : |
|---|
This something to do with the intake camshaft timing shift lock, short to ground it can suddenly lead to a significantly more reductant injection air pressure sensor 'a', circuit low . On the other hand reductant injection valve bank 1 unit 1, circuit / open will delay your vw fault. |
01791 Possible Causes:
01791 vw fault code may be caused by one or more of the following:
- Reverse Input Circuit
- Fuel Rail Pressure Sensor Circuit Malfunction
- Ignition Coil A Primary/Secondary Circuit Malfunction
- O2 Sensor Heater Circuit Malfunction
- Engine Oil Temperature Sensor Malfunction
- Manifold Absolute Pressure/Barometric Pressure Circuit High Input
What To Check After Fixing 01791 Code
- Inspect all the connections coolant fan (v7), 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