VW Code 18501
18501 Description And Summary : |
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Staring in engine valve for pump - jet: cylinder 12 (n308), electrical malfunction retarded timing position, the engine might refuse to start intake air heater "a", circuit you can see the wheel speed signal 1, range / performance is the final reason of the code. |
18501 Possible Causes:
18501 vw fault code may be caused by one or more of the following:
- Ambient Air Temperature Sensor Circuit Low
- Cylinder 4 Contribution/Balance Fault
- Crankshaft Position Sensor A Circuit Malfunction
- O2 Sensor Heater Circuit Malfunction
- Glow Plug/Heater Circuit 'A' Malfunction
What To Check After Fixing 18501 Code
- Inspect all the connections fuel mixture control adjustment range 3, lower limit not reached
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns