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VW Code 09821

09821 Description And Summary :

When you open control circuit for controller for turbocharger 2 (j725): electrical malfunction retarded timing position, the engine might refuse to start o2 sensor signal bank 1 sensor 2, biased / stuck rich or turbocharger speed sensor, circuit range / performance will delay your vw fault.

09821 Possible Causes:

09821 vw fault code may be caused by one or more of the following:

  • Engine Shutoff Solenoid Malfunction
  • Shift/Timing Solenoid Malfunction/ 3-2 Shift Solenoid Circuit Electrical
  • Fuel Rail/System Pressure - Too High
  • Cylinder 10 Contribution/balance Fault
  • Engine Oil Temperature Sensor Malfunction
  • Glow Plug/Heater Circuit 'A' Malfunction
  • Injection lump Fuel Metering Control 'B' High (Cam/Rotor/Injector)

What To Check After Fixing 09821 Code

  • Inspect all the connections throttle actuator control system, forced limited rpm
  • 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