levi_hahn48
Peugeot Partner check engine light and fuel consumption
Summary of the thread
A 2003 Peugeot Partner exhibited a check engine light and increased fuel consumption, with an error related to the exhaust system. The issue was suspected to be with the catalytic converter, but advice pointed towards a faulty oxygen sensor, which affects the air-fuel mixture. Upon inspection, a damaged oxygen sensor cable was identified and replaced, resolving the problem.
Did this summary help you solve your problem?
4 comment(s)
levi_hahn48 (community.author)
Thanks for the quick response! No, I didn't check the cable and plug. Where exactly is that located, and what am I looking for?
vivienschmid6
It's usually easy to spot. The oxygen sensor is screwed into the exhaust pipe before the catalytic converter. Trace the wire coming out of it; you'll find the connector. Check if it's loose or if the cable is damaged. If everything seems fine there, it's most likely the sensor itself. I'd recommend visiting a workshop; they should be able to diagnose it quickly.
levi_hahn48 (community.author)
Thanks for your help! Turns out it was indeed the oxygen sensor cable. The workshop replaced the sensor and the associated cable, and the whole repair cost 95€. Everything is back to normal now.
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
PARTNER
vivienschmid6
Hey there! I had similar symptoms on my Partner: check engine light, higher fuel consumption... Sounds like it could very well be the oxygen sensor before the catalytic converter. The oxygen sensor helps determine the air-fuel ratio, and when it fails, the engine computer won't be able to set the optimal mixture. Did you check the cable and plug connection to the sensor?