mex lex

iTrader: (4)

Everytime I park my car, it smells like rotten eggs from the outside. The longer I drive or the harder I step on the throttle, the stronger the smell is. I think it is coming from the catalytic converter but I am not sure. Anybody have any ideas or suggestions?

AW99GS400

yes catalytic converter

Lexmex

It should be the cat. I know some guys who are catless who run at my track from neighboring states on Sundays and the smell is god awful.

chuckb

if it's only after some high rpm action, it's prob ok. if it smells all the time, your cat could be toasted.

BLAZE

iTrader: (2)

Try not to eat so much gassie food before you drive around




















Na, It's the cat change it out.

samster

most def the cat!

BossGS4

iTrader: (2)

GS430s run 2 cats ...right ?

alredxiii

iTrader: (13)

I think it's 3, 2 on after the Headers and 1 before splitting off the exhaust

BossGS4

iTrader: (2)

so can a 430 run with a single hi flow cat or do all 3 have to be replaced ?

ReLexin

Yup def. the cats

400 Degrez

If the cat smells then stay away from it!!!!

uplusd

yep cats

sdsilverm3

My sister's 2006 IS had this smell since new. So does that mean the cat needs to be replaced?

speedaddic

iTrader: (10)

could also be a battery, sulfer smells like rotten eggs also. Check your battery for swelling

magnetik

iTrader: (1)

do you feel any lost power? same thing happened in my other car and found out the cat was clogged. they drilled a hole before and after the cats and placed a pressure meter in them... before the cat = super high pressure, after the cat = no pressure. Replaced the cat and all was good.