romyraven4

Peugeot 3008 NOx Sensor Faulty Connection

I'm having a nightmare with my 2018 Peugeot 3008 hybrid. The check engine light keeps popping on, and diagnostics show an error in the memory related to the NOx sensor. To top it off, there's a distinct smell of exhaust leaking. I've checked the obvious, but I'm thinking it's a defective cable or plug connection to the sensor. Anyone else had similar issues? It's only done 24471 km, so I'm really hoping it's nothing major.

A 2018 Peugeot 3008 hybrid owner experienced a recurring check engine light, with diagnostics indicating a NOx sensor error and a noticeable exhaust smell. Suspecting a defective cable or plug connection, the issue was confirmed to be a faulty connector on the NOx sensor. After replacing the connector, the problem was resolved, and the check engine light was cleared.

Did this summary help you solve your problem?

4 comment(s)

Sounds frustrating. I had a similar issue with my 2016 Volvo XC60 diesel a while back. Same symptoms – check engine light, error codes pointing to the emission sensor. Did you check the sensor's connector? Sometimes they get corroded or loose.

Thanks for the tip! I did have a quick look at the connector, but didn't see anything obvious. Was there a specific part of the connector that caused the problem on your Volvo, or was it just generally corroded?

For me it looked alright at first glance, but the mechanic found a tiny crack in the plastic housing of the connector itself. Moisture got in and messed with the signal. Honestly, after diagnostics and sensor replacement, it cost me about 95€. I would recommend taking it to a shop to get it checked out properly.

Thanks a lot for sharing your experience! Ended up taking it to the shop, and you were spot on - it was indeed a faulty connection on the NOx sensor. They replaced the connector, and the check engine light is gone. Problem solved!

rmh_community_comment_box_header

community_crosslink_scanner_headline

community_crosslink_scanner_intro

community_crosslink_scanner_title

community_crosslink_scanner_price

community_crosslink_rmh_headline

community_crosslink_rmh_intro

community_crosslink_rmh_title

community_crosslink_rmh_subtitle

community_crosslink_rmh_brand

PEUGEOT

community_crosslink_rmh_model

3008