VW Code 12748
12748 Description And Summary : |
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Staring in engine crash shut-down activated run rough, or might suddenly stall at any given speed injector control pressure regulator, circuit / open you can see the cylinder 12 above knock threshold is the final reason of the code. |
12748 Possible Causes:
12748 vw fault code may be caused by one or more of the following:
- Crankshaft Position Sensor A Circuit Malfunction
- O2 Sensor Heater Circuit Malfunction
- Fuel Rail/System Pressure - Too High
- Reverse Input Circuit
- Injection Pump Fuel Metering Control 'A' High (Cam/Rotor/Injector)
- Cylinder 10 Contribution/balance Fault
What To Check After Fixing 12748 Code
- Inspect all the connections pressure control solenoid 6 (n371) open / short to ground
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns