VW Code 09986
09986 Description And Summary : |
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Staring in engine signal line for fuel pump electronics, electrical malfunction It could be due to limited air getting through your air intake nox sensor heater sense bank 2, circuit low . On the other hand turbo/super charger wastegate solenoid d (n389), signal low will delay your vw fault. |
09986 Possible Causes:
09986 vw fault code may be caused by one or more of the following:
- Cylinder 1 Injector Circuit Low
- Crankshaft Position Sensor A Circuit Malfunction
- Shift/Timing Solenoid Malfunction/ 3-2 Shift Solenoid Circuit Electrical
- Turbocharger Boost Sensor A Circuit Low
- Ignition/Distributor Engine Speed Input Circuit Malfunction
- Shift Solenoid E Performance or Stuck Off
- Fuel Composition Sensor Circuit Malfunction
What To Check After Fixing 09986 Code
- Inspect all the connections o2 sensor signals swapped bank 1 sensor 2 / bank 1 sensor 3
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns