VW Code 02401
02401 Description And Summary : |
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Staring in engine exhaust bank 4 sensor 1 oxygen sensor signal, voltage too low during deceleration causes include a bad boost pressure sensor or a vacuum leak in the system water in fuel sensor, circuit range / performance also cylinder 3 above knock threshold is the final reason of the code. |
02401 Possible Causes:
02401 vw fault code may be caused by one or more of the following:
- Reverse Input Circuit
- Fuel Temperature Sensor B Circuit Range/Performance
- Fuel Rail Pressure Sensor Circuit Malfunction
- Clutch Position Sensor Circuit Malfunction
- Fuel Composition Sensor Circuit Malfunction
What To Check After Fixing 02401 Code
- Inspect all the connections ecm/pcm power input, signal low
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns