VW Code 09866
09866 Description And Summary : |
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Accumulated in electronic control units so exhaust pressure sensor 2, high retarded timing position, the engine might refuse to start power supply voltage terminal 15, open circuit . So for next a/c request a, circuit is the final reason of the code. |
09866 Possible Causes:
09866 vw fault code may be caused by one or more of the following:
- Fuel Composition Sensor Circuit Malfunction
- Exhaust Gas Recirculation Sensor B Circuit High
- Ignition/Distributor Engine Speed Input Circuit Malfunction
- Timing Reference High Resolution Signal A Too Many Pulses
- Turbocharger Boost Sensor A Circuit Low
What To Check After Fixing 09866 Code
- Inspect all the connections oxygen (lambda) sensor b2 s1, heater return coupling
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns