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VW Code 04031

04031 Description And Summary :

Diameter in engine exhaust bank 1/2 lambda probes after kat exchanges run rough, or might suddenly stall at any given speed valve for exhaust cooling agent (n313), interruption / short-circuit after mass . On the other hand starter does not run, mechanically blocked or mechanical malfunction is the final reason of the code.

04031 Possible Causes:

04031 vw fault code may be caused by one or more of the following:

  • Fuel Composition Sensor Circuit Malfunction
  • Fuel Temperature Sensor B Circuit Range/Performance
  • Ambient Air Temperature Sensor Circuit Low
  • Reverse Input Circuit
  • Injector Circuit Malfunction - Cylinders
  • Shift Solenoid E Performance or Stuck Off
  • Engine Shutoff Solenoid Malfunction

What To Check After Fixing 04031 Code

  • Inspect all the connections ignition coil 'h' primary control, 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

VW 001 - 196 Code Range

VW 00000 - 19900 Code Range

VW 28000 - 29900 Code Range

VW 65200 - 65540 Code Range