This smell is nasty YO!!! I can smell it when i first turn on my car which is cold and only on the weekends (not a daily driver) and after i stop somewhere and i go to start it again i get that smell in the vents only for a couple of seconds. Brand new Cat, just pasted smog with flying colors too.. I put the best gas which is Cheveron (Premium)... Any Ideas???

 

its the new cat they all do that. in time it will go away. take the car on a nice long highway run to get it real hot that will speed the process.

jeff

 

How's your timing? Try using a lower octane fuel or even a different brand- it sounds like poor combustion. Also, what's the condition of your catalytic converter?


btw, anything above 91 is un-necessary on these cars. The compression ratio for an LO3 is 9.3:1, and I've never had problems using 87 and even 86 octane in it.

 

My timming is at 0 but im going to put it at 6* cause it likes it there. Then i have to use the High Octane cause it will ping. But I never had the problem of that smell till the new cat came on. I ll just take it out for awhile and get it nice and hot.

 

hmm, new cat I didn't read that. that's probably it. But also, the brand of gasoline can definitely have an affect.

 

Do you think too that my O2 is acting up? Its about a year old and its a stupid BOSH!!! Could it be that im running rich too. I also noticed that at WOT i can smell it too. I probaly have an Exhaust leak. The bolts I use to hold the Headers in suck grass!! Ill change to different gas

 

I was going to suggest that, but I assumed you were properly tuned up. You acted like it was directly related to the cat so I didn't know


But still, running leaner will help heat that cat up faster.

 

you think i should go ahead and change out the O2 for a AC Delco one?