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So within the last few days, whenever I hit it hard enough to spool up the supercharger (A&A), there is a distinct smell from somewhere. Definitely not a belt or rubber smell. Smells like sulfur from a match. Please tell me a clutch smells like something other than sulfur!
If so, it could be the ECM adding fuel at WOT to cool your cats when you were running it hard.
Don't know what COTS is so not sure. I've hit it hard a couple of times since with no return of smell. Someone said I was just running the hell out of it! Har,har!
Don't know what COTS is so not sure. I've hit it hard a couple of times since with no return of smell. Someone said I was just running the hell out of it! Har,har!
When you go WOT you exhaust gas temperature goes up and that will increase the temperature of your catalytic converters. In your tune file, if COT is enabled, the ECM will add fuel when the catalytic converter reaches temperature thresholds. This additional fuel will help cool the catalytic converters, prevents damaging them and makes sure they are working efficiently. Some tuners will disable it so it does not interfere with the Air/fuel ratio.
Last edited by Mike's LS3; 09-29-2016 at 12:52 AM.
sulfur smell is definitely coming from your converters. typically you don't smell them on your own car but everyone behind you gets some good ol rotten egg smell.
09-25-2016, 12:17 PM
Sulfur smell
