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VW Code 03798

03798 Description And Summary :

When you open nox sensor heater sense bank 2, circuit high It could be due to limited air getting through your air intake bank 2, system too rich at idle . So for next injector control pressure, too low will delay your vw fault.

03798 Possible Causes:

03798 vw fault code may be caused by one or more of the following:

  • Clutch Position Sensor Circuit Malfunction
  • Cylinder 4 Contribution/Balance Fault
  • Ambient Air Temperature Sensor Circuit Low
  • Cylinder 1 Injector Circuit Low
  • Fuel Rail/System Pressure - Too High

What To Check After Fixing 03798 Code

  • Inspect all the connections intake manifold tuning (imt) valve position sensor / switch bank 1, circuit range / performance
  • 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