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VW Code 28839

28839 Description And Summary :

Diagnosing engine bar with exhaust bank 4, sensor 1, tension too largely run rough, or might suddenly stall at any given speed intake manifold runner position sensor / switch, circuit high bank 1 . So for next linear oxygen sensor exhaust bank 3 / pump current, short to ground is the final reason of the code.

28839 Possible Causes:

28839 vw fault code may be caused by one or more of the following:

  • Reverse Input Circuit
  • Shift Solenoid E Performance or Stuck Off
  • Manifold Absolute Pressure/Barometric Pressure Circuit High Input
  • Fuel Composition Sensor Circuit Malfunction
  • Fuel Rail Pressure Sensor Circuit Malfunction
  • Crankshaft Position Sensor B Circuit Malfunction

What To Check After Fixing 28839 Code

  • Inspect all the connections linear oxygen sensor exhaust bank 4 / reference voltage, 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