Prisma NOx Error and Exhaust Leak

I understand you are experiencing difficulties with your Chevrolet Prisma. I own a Prisma as well, albeit a slightly older model. I also had a similar situation where the check engine light illuminated in conjunction with an error code related to nitrogen oxides. The error suggested an issue with NOx emissions. The potential cause that I investigated was a leak in the exhaust system.

Interesting! So, what exactly did you do to troubleshoot the exhaust leak, and how did you confirm it was the culprit behind the NOx error? Was it obvious, or did you need some special equipment to find it?

I appreciate your inquiry. I enlisted the assistance of a certified automotive technician to diagnose the issue and to verify the integrity of the exhaust system. I would strongly recommend that you take your vehicle to a reputable automotive service facility to have them conduct a comprehensive inspection of the exhaust system, with particular attention to potential leakage points. Attempting to fix such an issue without proper expertise and tools could lead to complications.

Thanks a lot for the advice! I took it to a local shop, and they found a small crack in the exhaust pipe near the catalytic converter. They replaced the section, and after clearing the error codes, the check engine light is gone and the exhaust smell is gone too. Cost me about 265€, but worth it to get rid of the headache!