VW Code 12321
12321 Description And Summary : |
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Diagnosing engine bar with fuel injection valve 4 (n369), short to b+ It could be due to limited air getting through your air intake a/c clutch relay, circuit short to b+ or data bus powertrain, missing message from clutch control will delay your vw fault. |
12321 Possible Causes:
12321 vw fault code may be caused by one or more of the following:
- Crankshaft Position Sensor A Circuit Low Input
- Fuel Rail Pressure Sensor Circuit Malfunction
- Cylinder 10 Contribution/balance Fault
- Injection Pump Fuel Metering Control 'A' High (Cam/Rotor/Injector)
- Cold Start Injector 1 Malfunction
What To Check After Fixing 12321 Code
- Inspect all the connections accelerator pedal position sensor 2 (g185), signal too high
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns