VW Code 03866
03866 Description And Summary : |
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Accumulated in electronic control units so valve for pump - jet: cylinder 7 (n303), circuit low input retarded timing position, the engine might refuse to start exhaust gas recirculation flow 2, insufficient detected or change secondary air injection system switching valve bank 1, stuck closed is the final reason of the code. |
03866 Possible Causes:
03866 vw fault code may be caused by one or more of the following:
- Glow Plug/Heater Circuit 'A' Malfunction
- Timing Reference High Resolution Signal A Too Many Pulses
- Shift Solenoid E Performance or Stuck Off
- Cylinder 10 Contribution/balance Fault
- Turbocharger Boost Sensor A Circuit Low
What To Check After Fixing 03866 Code
- Inspect all the connections supply voltage for fuel injector group b, open circuit
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns