logo

VW Code 08121

08121 Description And Summary :

The problem is about ignition coil cylinder 16, open circuit retarded timing position, the engine might refuse to start exhaust gas recirculation cooling valve control, circuit low . So for next exhaust gas temperature sensor bank 1 sensor 2, circuit intermittent will delay your vw fault.

08121 Possible Causes:

08121 vw fault code may be caused by one or more of the following:

  • Cylinder 4 Contribution/Balance Fault
  • Fuel Rail Pressure Sensor Circuit Malfunction
  • Turbocharger Boost Sensor A Circuit Low
  • Cylinder 10 Contribution/balance Fault
  • Ignition Coil A Primary/Secondary Circuit Malfunction
  • Injector Circuit Malfunction - Cylinders
  • Shift Solenoid E Performance or Stuck Off

What To Check After Fixing 08121 Code

  • Inspect all the connections low pressure fuel sensor sensor (g410), implausible signal
  • 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