Figo NOx Sensor Issue

I had something similar, though I didn't notice the exhaust leak. I also drive a Figo, and the check engine light was always on. My OBD-II scanner pointed to the NOx sensor. Did you check the sensor's wiring harness for damage? Could be rodents.

Thanks. The wiring harness is the suspected area. Did your scan definitely pinpoint the NOx sensor, or were there other possible causes like the catalytic converter or pollution control system?

The scan pointed directly to the NOx sensor, so I stopped there. If the wiring looks okay, book it in. Replacing the sensor yourself is tough without the right tools. My sensor replacement was about 95€, and they found a loose connection too.

Understood. Based on your experience and the system's complexity, I'll schedule a workshop appointment for diagnosis and repair. Thanks for confirming the NOx sensor as the likely cause. I appreciate the insight.