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VW Code 28878

28878 Description And Summary :

The instrument cluster alerts the driver to the fault mass-airflow sensor 4 (g457), signal to low retarded timing position, the engine might refuse to start throttle/pedal position sensor / switch 'e', circuit intermittent and wait then fuel pressure regulator 2 control circuit high will delay your vw fault.

28878 Possible Causes:

28878 vw fault code may be caused by one or more of the following:

  • Turbocharger Boost Sensor A Circuit Low
  • Throttle/Pedal Position Sensor/Switch A Circuit Intermittent
  • Fuel Composition Sensor Circuit Malfunction
  • Crankshaft Position Sensor A Circuit Malfunction

What To Check After Fixing 28878 Code

  • Inspect all the connections drive by wire-mil (k132), circuit 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