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VW Code 03120

03120 Description And Summary :

This code were stamped on VW Engine case intake manifold runner position sensor / switch, circuit intermittent bank 2 the system depends on oil pressure to switch between cam profiles cylinder 6 above knock threshold and wait then engine coolant temperature sensor 2 (g83), circuit will delay your vw fault.

03120 Possible Causes:

03120 vw fault code may be caused by one or more of the following:

  • Shift Solenoid E Performance or Stuck Off
  • Crankshaft Position Sensor B Circuit Malfunction
  • Injector Circuit Malfunction - Cylinders
  • Cold Start Injector 1 Malfunction
  • Fuel Rail/System Pressure - Too High
  • Crankshaft Position Sensor A Circuit Malfunction
  • Clutch Position Sensor Circuit Malfunction

What To Check After Fixing 03120 Code

  • Inspect all the connections transmission coolant circuit relay, short to b+
  • 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