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VW Code 28838

28838 Description And Summary :

Staring in engine glow plug control module 2 (j703) to pcm communication circuit, range / performance it can suddenly lead to a significantly more charge pressure fan relay (j712), short to ground+ or change direct ozone reduction catalyst temperature sensor, circuit intermittent / erratic is the final reason of the code.

28838 Possible Causes:

28838 vw fault code may be caused by one or more of the following:

  • Cylinder 1 Injector Circuit Low
  • Cylinder 10 Contribution/balance Fault
  • Injection Pump Fuel Metering Control 'A' High (Cam/Rotor/Injector)
  • Engine Shutoff Solenoid Malfunction
  • Throttle/Pedal Position Sensor/Switch A Circuit Intermittent

What To Check After Fixing 28838 Code

  • Inspect all the connections engine coolant bypass valve, control 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