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VW Code 28666

28666 Description And Summary :

This code were stamped on VW Engine case a/c refrigerant distribution valve control, circuit low causes include a bad boost pressure sensor or a vacuum leak in the system valve for engine storage (n144/145), interruption / short-circuit after mass also o2 sensor signal bank 2 sensor 3, biased / stuck rich will delay your vw fault.

28666 Possible Causes:

28666 vw fault code may be caused by one or more of the following:

  • Ambient Air Temperature Sensor Circuit Low
  • Cylinder 1 Injector Circuit Low
  • Crankshaft Position Sensor B Circuit Malfunction
  • Shift Solenoid E Performance or Stuck Off
  • Engine Oil Temperature Sensor Malfunction
  • O2 Sensor Heater Circuit Malfunction
  • Clutch Position Sensor Circuit Malfunction

What To Check After Fixing 28666 Code

  • Inspect all the connections coolant pump control, circuit / open
  • 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