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VW Code 02781

02781 Description And Summary :

The instrument cluster alerts the driver to the fault o2 sensor out of range during deceleration bank 2 sensor 1 run rough, or might suddenly stall at any given speed exhaust gas temperature sensor, bank 1 sensor 4, circuit high and wait then activation, intake manifold runner bank 1 control, range / performance is the final reason of the code.

02781 Possible Causes:

02781 vw fault code may be caused by one or more of the following:

  • Throttle/Pedal Position Sensor/Switch A Circuit Intermittent
  • Ambient Air Temperature Sensor Circuit Low
  • Glow Plug/Heater Circuit 'A' Malfunction
  • Engine Shutoff Solenoid Malfunction
  • Shift Solenoid E Performance or Stuck Off
  • O2 Sensor Heater Circuit Malfunction

What To Check After Fixing 02781 Code

  • Inspect all the connections valve for exhaust flap 1 (n321), short to b+
  • 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