fionakeller1
Corsa NOx Catalyst Exhaust Leak
Summary of the thread
A 2010 Vauxhall Corsa is experiencing a check engine light with a NOx storage catalyst aging error and an exhaust smell, indicating a potential exhaust leak. The issue was traced to a small hole in the exhaust system near the catalytic converter. Replacing the affected exhaust section resolved the problem and cleared the error code.
Did this summary help you solve your problem?
4 comment(s)
fionakeller1 (community.author)
I've been looking, but haven't found anything obvious yet. Where was the leak on your Megane? Maybe that'll give me a place to start looking.
janbecker10
It was a small crack near the catalytic converter, where it connects to the exhaust pipe. Barely visible, but enough to cause problems. I'd put it on a lift for a good look or take it to a workshop. Saved me a lot of trouble.
fionakeller1 (community.author)
I took your advice and found a tiny hole in the exhaust, just before the cat. That was it! A new exhaust section cost me 265€, and the light's gone. Thanks for 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
VAUXHALL
community_crosslink_rmh_model
CORSA
janbecker10
Sounds familiar! I had a similar issue with my old Renault Megane. Same engine light, same error code. Did you check the exhaust system for leaks? That's where my problem started.