VW Code 04921
04921 Description And Summary : |
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This code were stamped on VW Engine case bank 1, cam shaft position sensor, discharge opening (g300), interruption / short-circuit to b+ retarded timing position, the engine might refuse to start turbo/super charger wastegate solenoid c (n388), signal low and intake manifold runner control, default not reached is the final reason of the code. |
04921 Possible Causes:
04921 vw fault code may be caused by one or more of the following:
- Shift Solenoid E Performance or Stuck Off
- Injection lump Fuel Metering Control 'B' High (Cam/Rotor/Injector)
- Crankshaft Position Sensor A Circuit Malfunction
- Cylinder 4 Contribution/Balance Fault
- Ambient Air Temperature Sensor Circuit Low
- Injection Pump Fuel Metering Control 'A' High (Cam/Rotor/Injector)
- Fuel Rail Pressure Sensor Circuit Malfunction
- Engine Oil Temperature Sensor Malfunction
What To Check After Fixing 04921 Code
- Inspect all the connections charging system, voltage low
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns