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VW Code 03846

03846 Description And Summary :

The problem is about o2 sensor pumping current trim bank 2 sensor 1, circuit / open run rough, or might suddenly stall at any given speed o2 sensor signal bank 1 sensor 1, biased / stuck lean or change direct ozone reduction catalyst deterioration sensor, circuit intermittent / erratic is the final reason of the code.

03846 Possible Causes:

03846 vw fault code may be caused by one or more of the following:

  • Exhaust Gas Recirculation Sensor B Circuit High
  • Crankshaft Position Sensor A Circuit Low Input
  • Fuel Rail/System Pressure - Too High
  • Injection Pump Fuel Metering Control 'A' High (Cam/Rotor/Injector)
  • Shift Solenoid E Performance or Stuck Off

What To Check After Fixing 03846 Code

  • Inspect all the connections fuel injector group 'd' supply voltage, 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