VW Code 12320
12320 Description And Summary : |
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Staring in engine fuel injector group 'd' supply voltage, circuit / open run rough, or might suddenly stall at any given speed exhaust bank 4 oxygen sensor before catalyst, heater circuit, regulation at upper limit and wait then ignition coil 'k' secondary circuit, malfunction is the final reason of the code. |
12320 Possible Causes:
12320 vw fault code may be caused by one or more of the following:
- Ignition/Distributor Engine Speed Input Circuit Malfunction
- Glow Plug/Heater Circuit 'A' Malfunction
- Shift/Timing Solenoid Malfunction/ 3-2 Shift Solenoid Circuit Electrical
- Cylinder 1 Injector Circuit Low
- Throttle/Pedal Position Sensor/Switch A Circuit Intermittent
- Crankshaft Position Sensor A Circuit Malfunction
- Exhaust Gas Recirculation Sensor B Circuit High
What To Check After Fixing 12320 Code
- Inspect all the connections fuel shutoff valve "b" control, circuit high
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns