patriciamiller1

Nissan Serena NOx Sensor Exhaust Leak

Hi, I have a 2019 Nissan Serena with a gasoline engine. The check engine light is on and the error memory shows a NOx sensor failure. I also noticed exhaust leaking. I checked the sensor connections, but everything seems ok. Any ideas?

A 2019 Nissan Serena exhibited a check engine light with a NOx sensor failure and an exhaust leak. The initial inspection showed no visible issues with the sensor connections. A similar past experience suggested that a faulty connection could be the cause. The problem was resolved by a workshop, confirming a defective cable connection as the root issue.

Did this summary help you solve your problem?

4 comment(s)

Hey! I had something similar with my Serena. Drove me nuts! Was the exhaust leak noticeable, like super loud or just a whiff? I'm thinking maybe a dodgy sensor, but a leak could mess things up too. Does it smell different than usual?

The leak isn't too loud, just a faint smell. You had the same NOx sensor issue and exhaust leak?

Yep, same NOx sensor and exhaust smell! Turned out to be a faulty connection, just like the mechanic said it could be. Honestly, save yourself the headache and get it checked by a workshop, they'll sort it out quick.

Thanks for the advice! Took it to the workshop, and you were right - the cable connection was defective. Cost me 95€ to fix. Appreciate the help!

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

NISSAN

community_crosslink_rmh_model

SERENA