VW Code 12391
12391 Description And Summary : |
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Diameter in engine sensor 3 for intake air temperature (g520), signal low run rough, or might suddenly stall at any given speed transmission control unit, incorrect coded . On the other hand databus engine-engine, implausible message will delay your vw fault. |
12391 Possible Causes:
12391 vw fault code may be caused by one or more of the following:
- Ignition/Distributor Engine Speed Input Circuit Malfunction
- Exhaust Gas Recirculation Sensor B Circuit High
- Throttle/Pedal Position Sensor/Switch A Circuit Intermittent
- Ambient Air Temperature Sensor Circuit Low
- Ignition Coil A Primary/Secondary Circuit Malfunction
- Cylinder 1 Injector Circuit Low
- Engine Oil Temperature Sensor Malfunction
- Shift/Timing Solenoid Malfunction/ 3-2 Shift Solenoid Circuit Electrical
What To Check After Fixing 12391 Code
- Inspect all the connections throttle actuator control motor, control circuit
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns