Renault Forums :: Independent Renault forum - View Single Post - Renault Scenic - Engines - 2.0 Petrol engine missfire

View Single Post
post #10 of (permalink) Old 8th December 2005
Diamond member
WebCode's Avatar
Join Date: Jul 2005
Posts: 764
Nominated 0 Times in 6 Posts
Nominated TOTW/F/M Award(s): 6
Thanks: 0
Thanked 63 Times in 22 Posts
Sounds like you have a defective Lambda sensor and/Or the CAT has failed.

A defective CAT would lead to the Sulphur smell you have described in your post..

Now the senario I am thinking about is as follows.
The lambda sensor fails, probably telling the vehicle is is running lean, so it tells the vehicle to "overfuel", some of this fuel is not burnt and ends up in the exhaust gas. This enters the CAT and destroys the monolyth..

Either way take it to a garage and have an emmissons check carried out to confirm..

Let us know what they say..

EX Renault Dealer Technician & MOT Tester, Not a Monkey!
For as long as but one hundred of us remain alive, we will never on any condition submit to the domination of the English.....It is not for glory, nor riches, nor honours that we fight, but for freedom alone, which no good man gives up except with his life. Arbroath 1320
Currently in WebCode's garage:
MK1 Facelift Megane Cabriolet Sport
WebCode is offline  
For the best viewing experience please update your browser to Google Chrome