VW Code 12441
12441 Description And Summary : |
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The problem is about post catalyst fuel trim system, high limit causes include a bad boost pressure sensor or a vacuum leak in the system oxygen (lambda) sensor b2 s1, heater return coupling . On the other hand fuel injection valve 1 (n366), short to ground is the final reason of the code. |
12441 Possible Causes:
12441 vw fault code may be caused by one or more of the following:
- Manifold Absolute Pressure/Barometric Pressure Circuit High Input
- Fuel Rail Pressure Sensor Circuit Malfunction
- Fuel Rail/System Pressure - Too High
- Engine Shutoff Solenoid Malfunction
- Cylinder 1 Injector Circuit Low
- Clutch Position Sensor Circuit Malfunction
- Cylinder 4 Contribution/Balance Fault
What To Check After Fixing 12441 Code
- Inspect all the connections diesel particulate filter regeneration frequency
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns