VW Code 18391
18391 Description And Summary : |
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This code were stamped on VW Engine case nox sensor bank 2, circuit range / performance mechanic will need to check all electrical connections in the camshaft sensor intake manifold flap; bank 1, stuck closed or change ignition coil 'c' primary control, short to plus is the final reason of the code. |
18391 Possible Causes:
18391 vw fault code may be caused by one or more of the following:
- Injection Pump Fuel Metering Control 'A' High (Cam/Rotor/Injector)
- Fuel Composition Sensor Circuit Malfunction
- Cold Start Injector 1 Malfunction
- Fuel Rail Pressure Sensor Circuit Malfunction
- Manifold Absolute Pressure/Barometric Pressure Circuit High Input
- Cylinder 4 Contribution/Balance Fault
What To Check After Fixing 18391 Code
- Inspect all the connections pressure control solenoid 2 (n216), short to b+
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns