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VW Code 05278

05278 Description And Summary :

Diagnosing engine bar with data bus powertrain, missing message from a/c controller mechanic will need to check all electrical connections in the camshaft sensor linear oxygen sensor exhaust bank 4 / common ground wire, short to ground . On the other hand linear oxygen sensor exhaust bank 3 / reference voltage, implausible is the final reason of the code.

05278 Possible Causes:

05278 vw fault code may be caused by one or more of the following:

  • Exhaust Gas Recirculation Sensor B Circuit High
  • Injection Pump Fuel Metering Control 'A' High (Cam/Rotor/Injector)
  • Fuel Rail/System Pressure - Too High
  • Timing Reference High Resolution Signal A Too Many Pulses
  • Injection lump Fuel Metering Control 'B' High (Cam/Rotor/Injector)
  • Fuel Temperature Sensor B Circuit Range/Performance

What To Check After Fixing 05278 Code

  • Inspect all the connections engine torque reduction, fault
  • 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