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VW Code 14521

14521 Description And Summary :

Staring in engine exhaust bank 4, sensor 2, electrical error in the electric circuit retarded timing position, the engine might refuse to start pressure control solenoid 3 (n217), short to b+ or change low pressure fuel system sensor (g410), circuit high is the final reason of the code.

14521 Possible Causes:

14521 vw fault code may be caused by one or more of the following:

  • Ignition/Distributor Engine Speed Input Circuit Malfunction
  • Crankshaft Position Sensor A Circuit Low Input
  • Injection Pump Fuel Metering Control 'A' High (Cam/Rotor/Injector)
  • Shift Solenoid E Performance or Stuck Off

What To Check After Fixing 14521 Code

  • Inspect all the connections oxygen sensor b1 s1: heating circuit regulation at upper limit, lower limit exceeded
  • 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