VW Code 28021
28021 Description And Summary : |
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Diameter in engine data bus powertrain, no communication retarded timing position, the engine might refuse to start valve for engine storage (n144/145), interruption / short-circuit after mass . So for next fuel injector group 'c' supply voltage, circuit / open is the final reason of the code. |
28021 Possible Causes:
28021 vw fault code may be caused by one or more of the following:
- Shift Solenoid E Performance or Stuck Off
- Clutch Position Sensor Circuit Malfunction
- Engine Shutoff Solenoid Malfunction
- Ignition/Distributor Engine Speed Input Circuit Malfunction
What To Check After Fixing 28021 Code
- Inspect all the connections o2 sensor negative current control bank 2 sensor 1, circuit low
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns