VW Code 01866
01866 Description And Summary : |
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Staring in engine valve for exhaust cooling agent (n313), short-circuit after pluses it can suddenly lead to a significantly more coolant pump control, circuit range / performance and transmission coolant circuit relay, intermittent is the final reason of the code. |
01866 Possible Causes:
01866 vw fault code may be caused by one or more of the following:
- Shift Solenoid E Performance or Stuck Off
- Exhaust Gas Recirculation Sensor B Circuit High
- Fuel Temperature Sensor B Circuit Range/Performance
- Ignition Coil A Primary/Secondary Circuit Malfunction
- O2 Sensor Heater Circuit Malfunction
What To Check After Fixing 01866 Code
- Inspect all the connections pressure sensor for brake boost (g294), implausible signal
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns