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VW Code 28940

28940 Description And Summary :

Staring in engine brake pedal position / accelerator pedal position, incompatible run rough, or might suddenly stall at any given speed post catalyst fuel trim system, high limit also fuel mixture control adjustment range 2, lower limit not reached will delay your vw fault.

28940 Possible Causes:

28940 vw fault code may be caused by one or more of the following:

  • Injection lump Fuel Metering Control 'B' High (Cam/Rotor/Injector)
  • Glow Plug/Heater Circuit 'A' Malfunction
  • Shift Solenoid E Performance or Stuck Off
  • Cylinder 10 Contribution/balance Fault
  • Cylinder 4 Contribution/Balance Fault

What To Check After Fixing 28940 Code

  • Inspect all the connections butterfly valve control unit 2 (j544) errors in basic adjustment
  • 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