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VW Code 08921

08921 Description And Summary :

Staring in engine exhaust bank 3, probe 1 heating circuit of electrical errors retarded timing position, the engine might refuse to start a/c request a, circuit low you can see the air cleaner inlet control, circuit low is the final reason of the code.

08921 Possible Causes:

08921 vw fault code may be caused by one or more of the following:

  • Fuel Rail/System Pressure - Too High
  • Cold Start Injector 1 Malfunction
  • Glow Plug/Heater Circuit 'A' Malfunction
  • Engine Oil Temperature Sensor Malfunction
  • Exhaust Gas Recirculation Sensor B Circuit High
  • Ignition/Distributor Engine Speed Input Circuit Malfunction
  • Reverse Input Circuit

What To Check After Fixing 08921 Code

  • Inspect all the connections engine coolant bypass valve, control circuit high
  • Check the engine oil to ensure it's clean and the viscosity
  • Restart the vehicle and retest to see if the error returns

VW 001 - 196 Code Range

VW 00000 - 19900 Code Range

VW 28000 - 29900 Code Range

VW 65200 - 65540 Code Range