VW Code 28772
28772 Description And Summary : |
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Accumulated in electronic control units so coolant degassing valve, control circuit high retarded timing position, the engine might refuse to start o2 sensor signal bank 2 sensor 1, biased / stuck rich . On the other hand torque management feedback signal "b", range / performance is the final reason of the code. |
28772 Possible Causes:
28772 vw fault code may be caused by one or more of the following:
- Crankshaft Position Sensor A Circuit Low Input
- Fuel Rail Pressure Sensor Circuit Malfunction
- Ambient Air Temperature Sensor Circuit Low
- Reverse Input Circuit
- Ignition Coil A Primary/Secondary Circuit Malfunction
- O2 Sensor Heater Circuit Malfunction
- Shift Solenoid E Performance or Stuck Off
What To Check After Fixing 28772 Code
- Inspect all the connections valve for exhaust flap 2 (n322), 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