weird smell

[ant33510]

can ne one explain my prob, when i get out of my car after running it for a few min it smell like this weird gas it olmost smells like pure 02  or  something strong but i dunno.. ne one have ideas on what it can be and how to fix it, oh ya my performance is like crap after i run the car for a while too maybe this is another add on to part of my prob but
Thanx

[240sxracer]

check your catalic converter it might be time to replace it

[9591]

Considering that pure O2 is odorless, it must be something else. And it could be almost anything: brakes, clutch (now *that's* a strong smell), cat, or <img src="http://www.zilvia.net/f/iB_html/non-cgi/emoticons/confused.gif" border="0" valign="absmiddle" alt='???'>

[wav399]

And for the masses, can you please explain to us what "pure O2" smells like?? <img src="http://www.zilvia.net/f/iB_html/non-cgi/emoticons/wink.gif" border="0" valign="absmiddle" alt=';)'>