VW Code 12784
12784 Description And Summary : |
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The instrument cluster alerts the driver to the fault reductant injection valve bank 1 unit 2, circuit high the system depends on oil pressure to switch between cam profiles o2 sensor negative current control bank 2 sensor 1, circuit low and sensor 3 for intake air temperature (g520), signal low is the final reason of the code. |
12784 Possible Causes:
12784 vw fault code may be caused by one or more of the following:
- Cylinder 1 Injector Circuit Low
- Crankshaft Position Sensor A Circuit Malfunction
- Glow Plug/Heater Circuit 'A' Malfunction
- Cold Start Injector 1 Malfunction
- Fuel Rail Pressure Sensor Circuit Malfunction
- Injection Pump Fuel Metering Control 'A' High (Cam/Rotor/Injector)
What To Check After Fixing 12784 Code
- Inspect all the connections givers 2 for intake air temperature (g299), signal too largely
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns