johannes_blitz9

Skoda Roomster NOx Sensor Issue

Alright, I'm officially pulling my hair out! My Skoda Roomster, 2015 model with a gasoline engine and about 76693 km on the clock, is throwing a fit. The check engine light is on, and the error memory says something about the NOx sensor – you know, the nitrogen oxide thing for pollution control. Plus, I think I can smell exhaust fumes more than usual. Could a defective cable or plug connection of the component really be the cause? Anyone had this happen?

4 comment(s)

Sounds frustrating! I had a similar issue with my old Renault Megane, though that was a diesel engine. The check engine light kept popping on, and it turned out to be something with an emission sensor too. Did you check the sensor's connection? Maybe it's just loose or corroded?

Interesting! When you say 'emission sensor', was it also the nitrogen oxide sensor, or something different? And how did you figure out it was the connection specifically?

Ah, I see! No, it wasn't specifically the nitrogen oxide sensor, but something related to the emission control system. I didn't figure out the connection myself; I took it to a workshop. They said the error was related to loose contact. Given your exhaust leak smell, it's probably best to get it checked professionally, in my humble opinion.

Big thanks for the advice! Turns out you were spot on about the connection. Took it to a mechanic, and the error was indeed a defective cable/plug connection to the NOx sensor. They sorted it out, and the total cost was only 95€ – way better than a whole new sensor! I'm seriously relieved.

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