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VW Code 04091

04091 Description And Summary :

Diameter in engine event data recorder request, circuit low mechanic will need to check all electrical connections in the camshaft sensor ignition coil 'h' primary control, short to plus and wait then direct ozone reduction catalyst temperature sensor, circuit low is the final reason of the code.

04091 Possible Causes:

04091 vw fault code may be caused by one or more of the following:

  • Injector Circuit Malfunction - Cylinders
  • Cylinder 4 Contribution/Balance Fault
  • Cylinder 1 Injector Circuit Low
  • Cylinder 10 Contribution/balance Fault
  • Injection lump Fuel Metering Control 'B' High (Cam/Rotor/Injector)
  • Throttle/Pedal Position Sensor/Switch A Circuit Intermittent
  • Cold Start Injector 1 Malfunction

What To Check After Fixing 04091 Code

  • Inspect all the connections mass-airflow sensor 4 (g457), signal to 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