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VW Code 28938

28938 Description And Summary :

Staring in engine exhaust gas recirculation cooling valve control, circuit / open the system depends on oil pressure to switch between cam profiles malfunction indication light (k83), short to ground . So for next reversing light, circuit short to b+ will delay your vw fault.

28938 Possible Causes:

28938 vw fault code may be caused by one or more of the following:

  • Ignition/Distributor Engine Speed Input Circuit Malfunction
  • Fuel Rail Pressure Sensor Circuit Malfunction
  • Manifold Absolute Pressure/Barometric Pressure Circuit High Input
  • Cylinder 10 Contribution/balance Fault
  • Crankshaft Position Sensor A Circuit Malfunction
  • Timing Reference High Resolution Signal A Too Many Pulses

What To Check After Fixing 28938 Code

  • Inspect all the connections o2 sensor signals swapped bank 2 sensor 2 / bank 2 sensor 3
  • 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