VW Code 18633
18633 Description And Summary : |
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The instrument cluster alerts the driver to the fault intake air heater "a", circuit low causes include a bad boost pressure sensor or a vacuum leak in the system injector control pressure sensor, circuit range / performance and relays for large amount of heat (j360), disconnected or short to ground is the final reason of the code. |
18633 Possible Causes:
18633 vw fault code may be caused by one or more of the following:
- Crankshaft Position Sensor A Circuit Low Input
- Injection lump Fuel Metering Control 'B' High (Cam/Rotor/Injector)
- Ignition Coil A Primary/Secondary Circuit Malfunction
- Crankshaft Position Sensor B Circuit Malfunction
- Cylinder 10 Contribution/balance Fault
What To Check After Fixing 18633 Code
- Inspect all the connections cylinder 9 above knock threshold
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns