VW Code 186
186 Description And Summary : |
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Accumulated in electronic control units so databus engine-engine, implausible message it can suddenly lead to a significantly more secondary air injection system control 'b', circuit high . So for next intake air heater "a", circuit is the final reason of the code. |
186 Possible Causes:
186 vw fault code may be caused by one or more of the following:
- Fuel Composition Sensor Circuit Malfunction
- Injection Pump Fuel Metering Control 'A' High (Cam/Rotor/Injector)
- Clutch Position Sensor Circuit Malfunction
- Cylinder 4 Contribution/Balance Fault
- Crankshaft Position Sensor A Circuit Low Input
What To Check After Fixing 186 Code
- Inspect all the connections wheel speed signal 1, range / performance
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns