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Unread 07-04-2002, 12:16 PM   #1
yaffy
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Rotten Egg/Sulfer smell

The guy I bought my '94 YJ from had the exhaust replaced about 4 weeks ago (new cat, muffler, pipes). It smells like rotten eggs (sulfer). I think this is normal for a new exhaust, but maybe someone can verify this?

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Unread 07-04-2002, 12:26 PM   #2
Dan Morera
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I used to sell new cars (I know don't kill me), that's the smell of the new cat.
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Unread 07-04-2002, 01:15 PM   #3
igofshn
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That is the smell of a bad catalytic converter. It needs to be replaced.
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Unread 07-04-2002, 03:40 PM   #4
johny1i
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Although the main cause of that is a worn-out cat, I saw that you mentioned that you have a new one installed, so the next most common cause is a mixture that is too rich (excess hydrocarbons--unburned gas--is how I've had it explained to me). Does you jeep run fine otherwise? A bad oxygen sensor would mean that the mixture is not being properly regulated, but that would also show up as a rough idle (usually). It's true that a new cat can have that smell, so it may solve itself, and in the meantime you can try a different brand of gas, as some brands are better and have less sulfur in them than others. Keep in mind that until the cat warms up (it operates at several hundred degrees), it will not be 100% effective, so if it just does this in the first few miles, it's nothing to be concerned about.
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Unread 07-05-2002, 09:41 AM   #5
Dan's YJ
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When I had my new system installed. It smelled really bad for a few days. But after that it was back to normal.
Manifold back, high flow cat with a flowmaster.
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Unread 07-07-2002, 06:28 PM   #6
yaffy
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Thanks for the info guys. I was thinking O2 sensor but wasn't sure. I'll check that, since they say they can go bad in 40K-50K miles.
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[i]I bend skid plates[/i]
[size=1][b]97 TJ[/b] Lifted. Locked. [i]Unstocked[/i]
[b]05 Ram 2500[/b] CTD 600 QC 6spd 4x4 SWB. 315s. [color=darkred]BOMBed[/color][/size]
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Unread 07-16-2002, 10:10 AM   #7
mxg342
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Yaffy,
Where are you from in PA?
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Unread 07-19-2002, 11:21 AM   #8
yaffy
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I'm from Lancaster, but during the school year I'll be living ins State College. Where you at?
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[i]I bend skid plates[/i]
[size=1][b]97 TJ[/b] Lifted. Locked. [i]Unstocked[/i]
[b]05 Ram 2500[/b] CTD 600 QC 6spd 4x4 SWB. 315s. [color=darkred]BOMBed[/color][/size]
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Unread 07-21-2002, 08:06 PM   #9
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yaffy,

I'm originally from the kittanning/Indiana area but I too will be living in PSU this fall. Penn State Apartments at the corner of Foster and Gill Street.
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"when you're up to your *** in alligators, it is hard to remember that your original intention is to drain the swamp"
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