VW Code 18666
18666 Description And Summary : |
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This something to do with the intake camshaft timing injection pump, timing calibration not learned it can suddenly lead to a significantly more linear oxygen sensor exhaust bank 4 / pump current, short to ground you can see the throttle position output, circuit / open will delay your vw fault. |
18666 Possible Causes:
18666 vw fault code may be caused by one or more of the following:
- Cylinder 4 Contribution/Balance Fault
- Ambient Air Temperature Sensor Circuit Low
- Crankshaft Position Sensor A Circuit Malfunction
- Reverse Input Circuit
- Shift/Timing Solenoid Malfunction/ 3-2 Shift Solenoid Circuit Electrical
What To Check After Fixing 18666 Code
- Inspect all the connections throttle actuator control system, ice blockage
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns