Green onion smell from exhaust?!?!

[k20]

Hey all, this is a weird one. Ive noticed this over the last 2 weeks or so, if i get on the gas and then stop at a redlight or pull in driveway and get out w/ it runnin, ill smell green onions from the exhaust. Any ideas as to what it is? I know clogged cats smell like rotten eggs, or so ive always heard. Green onions another one? I thought maybe it was the gas i been using. I usually use shell, but for 2 weeks i used citgo (cheaper) then last week it was 76 and no change. Should I run through some lucas fuel system cleaner and see if any change? Or any other possibilities? Also, when the smell comes it almost burns your eyes like onions do......

 

[DBLAZER]

Add a little Garlic and CHicken and you are makin me hungry /forums/images/graemlins/doah.gif

 

[k20]

haha, very funny lol.

 

[k20]

anyone? /forums/images/graemlins/dunno.gif

 

[79Stomper]

Could be some of that gas they have been adding in hot dogs and hamburgers to substitut and help maintain the prices.

Try running some cleaner through it and see if that helps. Anything other than that I have never heard of it but wil ask around and see what I come up with.