Well i was coming home from work and I was parking my car in the garage it's a 1999 civic SI with a stock B16 just with intake and a Kn&n filter. I periodically pop my hood from time to time just to make sure everything was aok and rev up not to high just till about 2400 just to make sure every thing is cool. Well after i shut it down i could smell a rotten egg smell emitting from the rear. My question is how come anyone have any ideas ?? I recently put a set of wires and plugs in and my Kn&N filter is a bit bigger but that shouldn't make much of a differance should it ??

Thanks for the help in advance

 

most likely a rotten egg smell is from a clogged/bad catalytic converter. check that out, that should be your problem!

 

Rotten egg smell could be caused by a bad cat but it could be a series of problems you got going on there. The smell from the exhaust is not a sign of a bad cat. is a sign of the kind of improper mixture that will ultimately cause your cat to go bad. Before replacing the cat, look into the kinds of problems that can cause improper mixture such as a faulty o2 sensor

 

could be from a cat. my dad had that a while ago

 

sounds like a bad cat to me dude... i have a 2000 civic si and had the same problem.. i changed the cat and the smell was gone...

 

sounds like somebody cut the mustard

 

Almost all the time, it is the cat.

 

Cat. Meow...

 

It's either the cat or the battery. When batteries go bad they emit sulfuric gases.

 

u sure u don't got a rotten egg in your trunk? =P

 

that sucks..hope u figure it out...lots of air freshners coming ur way

 

some new exhausts have emmisions were for some reason it smells like rotten eggs. It's supposably comes cleaner but the smell is the con.

 

check O2 sensor and cat and replace if nessecary. Your problem should go away.

 

what if someone threw an eg in your exhaust.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Richard D. James &raquo;</TD></TR><TR><TD CLASS="quote">Cat. Meow...</TD></TR></TABLE>

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Bond &raquo;</TD></TR><TR><TD CLASS="quote">check O2 sensor and cat and replace if nessecary. Your problem should go away.</TD></TR></TABLE>

thanks i think this is gonna be my best bet am most likly gonna check my 02 sensor with an OHM meter and see whats going on with my cat.

Thanks for the tech help.

And a little good old fashion H-T humor never hurts either