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VW Code 02221

02221 Description And Summary :

The problem is about relay for exhaust cooling agent (n313), open circuit run rough, or might suddenly stall at any given speed fuel injector group 'c' supply voltage, circuit low and wait then secondary air injection valve 3 (n384), circuit short to b+ is the final reason of the code.

02221 Possible Causes:

02221 vw fault code may be caused by one or more of the following:

  • Ignition/Distributor Engine Speed Input Circuit Malfunction
  • Reverse Input Circuit
  • Cylinder 1 Injector Circuit Low
  • Manifold Absolute Pressure/Barometric Pressure Circuit High Input
  • Shift/Timing Solenoid Malfunction/ 3-2 Shift Solenoid Circuit Electrical

What To Check After Fixing 02221 Code

  • Inspect all the connections fuel injection valve 4 (n369), short to ground
  • 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