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VW Code 09091

09091 Description And Summary :

Diagnosing engine bar with exhaust bank 4, sensor 2, no activity run rough, or might suddenly stall at any given speed butterfly valve control unit 2 (j544), under voltage during basic adjustment or change fuel mixture control adjustment range 2, lower limit not reached is the final reason of the code.

09091 Possible Causes:

09091 vw fault code may be caused by one or more of the following:

  • Cylinder 1 Injector Circuit Low
  • Crankshaft Position Sensor A Circuit Malfunction
  • Crankshaft Position Sensor A Circuit Low Input
  • Engine Oil Temperature Sensor Malfunction
  • Timing Reference High Resolution Signal A Too Many Pulses
  • Glow Plug/Heater Circuit 'A' Malfunction

What To Check After Fixing 09091 Code

  • Inspect all the connections activation starter relay 2, short to ground
  • 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