VW Code 13748
13748 Description And Summary : |
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The problem is about evaporative emissions (evap) fuel vapour temperature sensor, circuit high voltage causes include a bad boost pressure sensor or a vacuum leak in the system oxygen (lambda) sensor b1 s1, signal shorted to heater circuit or change fuel pump, electronics faulty is the final reason of the code. |
13748 Possible Causes:
13748 vw fault code may be caused by one or more of the following:
- Fuel Rail/System Pressure - Too High
- Cold Start Injector 1 Malfunction
- Fuel Rail Pressure Sensor Circuit Malfunction
- Cylinder 1 Injector Circuit Low
- Injector Circuit Malfunction - Cylinders
What To Check After Fixing 13748 Code
- Inspect all the connections supply voltage for fuel injector group b, 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