VW Code 09866
09866 Description And Summary : |
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When you open secondary air injection valve 4 (n385), circuit open circuit the system depends on oil pressure to switch between cam profiles linear oxygen sensor exhaust bank 4 / pump current, short to b+ . So for next turbocharger / supercharger boost system performance will delay your vw fault. |
09866 Possible Causes:
09866 vw fault code may be caused by one or more of the following:
- Glow Plug/Heater Circuit 'A' Malfunction
- Engine Oil Temperature Sensor Malfunction
- Ignition Coil A Primary/Secondary Circuit Malfunction
- Engine Shutoff Solenoid Malfunction
- Shift Solenoid E Performance or Stuck Off
What To Check After Fixing 09866 Code
- Inspect all the connections injector control pressure, too high
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns