VW Code 12330
12330 Description And Summary : |
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When you open linear oxygen sensor exhaust bank 4 / reference voltage, implausible causes include a bad boost pressure sensor or a vacuum leak in the system nox sensor heater control bank 1, circuit high . So for next evaporative emission system leak detection pump sense, circuit range / performance is the final reason of the code. |
12330 Possible Causes:
12330 vw fault code may be caused by one or more of the following:
- Fuel Temperature Sensor B Circuit Range/Performance
- Crankshaft Position Sensor B Circuit Malfunction
- Injection Pump Fuel Metering Control 'A' High (Cam/Rotor/Injector)
- Reverse Input Circuit
- Glow Plug/Heater Circuit 'A' Malfunction
What To Check After Fixing 12330 Code
- Inspect all the connections relays for electrical fuel pump 2 (j49), short-circuit after pluses
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns