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VW Code 28004

28004 Description And Summary :

The instrument cluster alerts the driver to the fault evaporative emission system leak detection pump sense, circuit low to change the oil filter and use the recommended engine oil to avoid any problems in the future so fuel mixture control adjustment range 1, lower limit not reached also linear oxygen sensor exhaust bank 2, compensation wire pump current, open circuit is the final reason of the code.

28004 Possible Causes:

28004 vw fault code may be caused by one or more of the following:

  • Shift Solenoid E Performance or Stuck Off
  • Shift/Timing Solenoid Malfunction/ 3-2 Shift Solenoid Circuit Electrical
  • Fuel Composition Sensor Circuit Malfunction
  • Turbocharger Boost Sensor A Circuit Low
  • Cylinder 10 Contribution/balance Fault
  • Injection lump Fuel Metering Control 'B' High (Cam/Rotor/Injector)
  • Fuel Temperature Sensor B Circuit Range/Performance

What To Check After Fixing 28004 Code

  • Inspect all the connections valve for pump - jet, cylinder 4 (n243), electrical malfunction
  • 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