VW Code 04303
04303 Description And Summary : |
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Diameter in engine ignition coil 'd' secondary circuit, malfunction It could be due to limited air getting through your air intake intake manifold runner position sensor / switch, circuit low bank 1 and nox sensor heater sense bank 1, circuit low is the final reason of the code. |
04303 Possible Causes:
04303 vw fault code may be caused by one or more of the following:
- Turbocharger Boost Sensor A Circuit Low
- Exhaust Gas Recirculation Sensor B Circuit High
- Engine Shutoff Solenoid Malfunction
- Cylinder 10 Contribution/balance Fault
- Cylinder 1 Injector Circuit Low
- O2 Sensor Heater Circuit Malfunction
What To Check After Fixing 04303 Code
- Inspect all the connections pressure control solenoid 5 (n233) 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