VW Code 12948
12948 Description And Summary : |
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This code were stamped on VW Engine case reductant injection air pump control, circuit high run rough, or might suddenly stall at any given speed givers 2 for intake air temperature (g299), signal too small you can see the secondary air injection valve 4 (n385), circuit short to ground is the final reason of the code. |
12948 Possible Causes:
12948 vw fault code may be caused by one or more of the following:
- Engine Oil Temperature Sensor Malfunction
- Manifold Absolute Pressure/Barometric Pressure Circuit High Input
- Injector Circuit Malfunction - Cylinders
- Ignition/Distributor Engine Speed Input Circuit Malfunction
- Injection Pump Fuel Metering Control 'A' High (Cam/Rotor/Injector)
- Engine Shutoff Solenoid Malfunction
- O2 Sensor Heater Circuit Malfunction
- Cylinder 4 Contribution/Balance Fault
What To Check After Fixing 12948 Code
- Inspect all the connections please check dtc memory of abs control module
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns