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VW Code 28027

28027 Description And Summary :

Diameter in engine nox sensor bank 2, circuit high run rough, or might suddenly stall at any given speed diesel particulate filter pressure sensor 'a', circuit intermittent / erratic . So for next linear oxygen sensor exhaust bank 2 / pump current, short to ground is the final reason of the code.

28027 Possible Causes:

28027 vw fault code may be caused by one or more of the following:

  • Ignition Coil A Primary/Secondary Circuit Malfunction
  • Cold Start Injector 1 Malfunction
  • Shift Solenoid E Performance or Stuck Off
  • Glow Plug/Heater Circuit 'A' Malfunction
  • Injection Pump Fuel Metering Control 'A' High (Cam/Rotor/Injector)
  • Ambient Air Temperature Sensor Circuit Low

What To Check After Fixing 28027 Code

  • Inspect all the connections exhaust aftertreatment fuel injector 'a', 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