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VW Code 08521

08521 Description And Summary :

When you open starter interlock, circuit short to ground the system depends on oil pressure to switch between cam profiles o2 sensor pumping current trim bank 2 sensor 1, circuit high and intake manifold runner position sensor / switch, circuit low bank 1 is the final reason of the code.

08521 Possible Causes:

08521 vw fault code may be caused by one or more of the following:

  • Injection lump Fuel Metering Control 'B' High (Cam/Rotor/Injector)
  • Ignition Coil A Primary/Secondary Circuit Malfunction
  • Crankshaft Position Sensor A Circuit Malfunction
  • Turbocharger Boost Sensor A Circuit Low
  • Cold Start Injector 1 Malfunction
  • Crankshaft Position Sensor A Circuit Low Input
  • Fuel Rail Pressure Sensor Circuit Malfunction
  • Shift/Timing Solenoid Malfunction/ 3-2 Shift Solenoid Circuit Electrical

What To Check After Fixing 08521 Code

  • Inspect all the connections transmission mount valve 1 (n262), short to plus
  • 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