VW Code 09979
09979 Description And Summary : |
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Diagnosing engine bar with fuel rail sensor (g401), short to b+ It could be due to limited air getting through your air intake cooling bypass valve, exhaust gas recirculation flow, electrical . On the other hand secondary air injection system pump bank 1, stuck on will delay your vw fault. |
09979 Possible Causes:
09979 vw fault code may be caused by one or more of the following:
- Fuel Rail Pressure Sensor Circuit Malfunction
- Reverse Input Circuit
- Throttle/Pedal Position Sensor/Switch A Circuit Intermittent
- Cylinder 4 Contribution/Balance Fault
- Shift Solenoid E Performance or Stuck Off
- Shift/Timing Solenoid Malfunction/ 3-2 Shift Solenoid Circuit Electrical
- Fuel Rail/System Pressure - Too High
What To Check After Fixing 09979 Code
- Inspect all the connections data bus powertrain, missing message from adr control module
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns