VW Code 03798
03798 Description And Summary : |
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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