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VW Code 28566

28566 Description And Summary :

This something to do with the intake camshaft timing 'b' rocker arm actuator control, circuit high it can suddenly lead to a significantly more exhaust gas temperature, bank 1 sensor 2, out of range . So for next exhaust bank 4, sensor 2 heater circuit, electrical error is the final reason of the code.

28566 Possible Causes:

28566 vw fault code may be caused by one or more of the following:

  • O2 Sensor Heater Circuit Malfunction
  • Engine Shutoff Solenoid Malfunction
  • Reverse Input Circuit
  • Ignition/Distributor Engine Speed Input Circuit Malfunction
  • Fuel Temperature Sensor B Circuit Range/Performance

What To Check After Fixing 28566 Code

  • Inspect all the connections butterfly valve control unit 2 (j544), under voltage during basic adjustment
  • 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