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Why does my car smell like rotten eggs everytime i floor it?

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Old 01-27-12, 08:10 AM   #1
GSLEX0586
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Default Why does my car smell like rotten eggs everytime i floor it?

Whenever i go wide open throttle, my cabin smells like a bad perm/rotten eggs. Why is this? it ONLY happens when i do this.
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Old 01-27-12, 08:45 AM   #2
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Sounds like a bad catalytic converter usually that’s what rotten egg smell means but wait for other opinions before you go buy one there very expensive.
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Old 01-27-12, 08:45 AM   #3
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It's your cats and possible they are ready to go.
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Old 01-27-12, 09:18 AM   #4
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would a bad cat cause a strong in-cabin smell?
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Old 01-27-12, 10:42 AM   #5
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From what ive heard the egg smell is your cats going bad, and you probally have an exhaust leak thats why ur smelling it in the car
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Old 01-27-12, 10:52 AM   #6
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could be true because i swapped out my exhaust last week and this is the only time i've smelled it. I might use a gasket between the cat and axle back pipes..
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Old 01-27-12, 12:19 PM   #7
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Cats and definitely check the gasket in between.
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Old 01-27-12, 01:48 PM   #8
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GSLEX0586, i smell it too ! smelled like burning plastic/rubber underneath the car or something. gotta be the gasket.
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Old 01-27-12, 03:08 PM   #9
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^^probably it then. ill go get a gasket and maybe u should too
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Old 01-27-12, 03:30 PM   #10
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There's a cat stuck in your exhaust.
Just Kidding.
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Old 01-27-12, 04:29 PM   #11
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Quote:
Originally Posted by GSLEX0586 View Post
^^probably it then. ill go get a gasket and maybe u should too
whats the diameter size of this gasket ? where can i get it ? ebay?
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Old 01-28-12, 02:59 AM   #12
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I had this issue on my M5, it was bad cats. I changed the gaskets and the smell was still there! I removed the cats and replaced it with a straight pipe, smell gone!

If emmisions is an issue, replace your cats.
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Old 02-20-12, 09:48 AM   #13
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Just to confirmed, I have my car check out at the dealer and the mechanic told me due to certain brand of gasoline have more sulfur. That will create the foul smell and it's normal under hard acceleration.

The smell you are smelling is hydrogen sulfide (H2S). It results from using fuel with high sulfur content. (Much of the fuel sold in the US contains a LOT of sulfur -- much more than is legal in Europe, for example, though the Govt. has mandated a reduction to Euro sulfur levels in Diesel fuel over the next several years). You can sometimes reduce or eliminate this problem by changing brands. That is often not a permanent cure since refineries usually buy from a variety of suppliers and the amount of sulfur in any one brand varies as a result.
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Old 02-20-12, 10:05 PM   #14
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You are absolutely right, our fuel here contains sulfur too. Sulfur is really bad for your injectors, especially on newer cars with DIrect Fuel Injection system!
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Old 02-21-12, 08:38 AM   #15
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CATs for sure wanna check which one too.. its gonna cost you lots of $$$ gL
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Old 02-21-12, 08:38 AM
 
 
 
 
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