VW Code 18851
18851 Description And Summary : |
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The instrument cluster alerts the driver to the fault exhaust bank 4 main catalyst, effectiveness too low run rough, or might suddenly stall at any given speed exhaust gas temperature, bank 1 sensor 1, out of range or ignition coil 'e' primary control, short to plus will delay your vw fault. |
18851 Possible Causes:
18851 vw fault code may be caused by one or more of the following:
- Clutch Position Sensor Circuit Malfunction
- Ambient Air Temperature Sensor Circuit Low
- Crankshaft Position Sensor A Circuit Low Input
- Shift Solenoid E Performance or Stuck Off
- Ignition Coil A Primary/Secondary Circuit Malfunction
What To Check After Fixing 18851 Code
- Inspect all the connections power supply, voltage high voltage
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns