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VW Code 03721

03721 Description And Summary :

Diameter in engine intake manifold tuning (imt) valve position sensor / switch bank 1, circuit range / performance It could be due to limited air getting through your air intake solenoid ev 7 (n94), electrical malfunction . On the other hand exhaust bank 3, probe 2 no activity will delay your vw fault.

03721 Possible Causes:

03721 vw fault code may be caused by one or more of the following:

  • Ignition Coil A Primary/Secondary Circuit Malfunction
  • Ignition/Distributor Engine Speed Input Circuit Malfunction
  • Shift Solenoid E Performance or Stuck Off
  • Throttle/Pedal Position Sensor/Switch A Circuit Intermittent

What To Check After Fixing 03721 Code

  • Inspect all the connections interference in mechatronic module
  • 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