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Old 10-13-2003, 01:20 AM   #1
Scooby Specialist
Member#: 6982
Join Date: May 2001
Location: .
2001 Legover
04 forester xt

Default My car is laying eggs.

It stinking pretty bad after a few hills. I have 53k on the clock, and no cels. Maybe an o2 is starting to shiz the bed?
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Old 10-13-2003, 01:38 AM   #2
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Member#: 8877
Join Date: Aug 2001
Chapter/Region: SCIC
Location: SoCal
2000 Impreza 2.5RS
(sept '01-jan '04)


I've heard that a sulfur smell (similar to rotten eggs) usually means your catalytic converter is failing. I don't know for sure though, might want to do a search.

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Old 10-13-2003, 03:57 AM   #3
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Member#: 269
Join Date: Sep 1999
Chapter/Region: VIC
Location: Burnaby, B.C., Canada
00 Impreza RS GM6 RIP


Could be that the gas you're using has a high sulfur content in it.

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Old 10-13-2003, 04:32 AM   #4
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Member#: 19018
Join Date: May 2002
Location: Maribor, Slovenia
1995 Legacy Wagon


Originally posted by scotty305
I've heard that a sulfur smell (similar to rotten eggs) usually means your catalytic converter is failing. I don't know for sure though, might want to do a search.

I've noticed that rotten egg smell with new cars, so I thought that the catalityc converter was supposed to do that as long as it's good and working.

Maybe if it smells worse, it's more environment friendly, who knows...

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Old 10-13-2003, 05:00 PM   #5
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Join Date: Sep 2000
Chapter/Region: BAIC
Location: haha XD
2013 Subaru 599 :P
Galaxy Blue Sexy


I think its a bad cat too.
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Old 10-13-2003, 05:18 PM   #6
Trust no one
Member#: 11170
Join Date: Oct 2001
Chapter/Region: Tri-State
Location: NYC
02 WRX
05 GTO/11 Sonata(!)


It's actually the result of the cat working overtime. The catalytic reaction breaks the unburned fuel in the exhaust into its components and recombines them into other compounds- H20, CO2, H2S. An excessively rich mixture and/or high sulfur content in the fuel will produce a higher amount of H2S (hydrogen sulfide) from the cat which is what gives the rotten egg smell. As mentioned a different brand of fuel may help, and the engine control system should be checked as well. It is very possible for a failing 02 sensor to cause this but not set a CEL.
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Old 03-15-2005, 04:20 PM   #7
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Member#: 51642
Join Date: Dec 2003
Chapter/Region: TXIC
Location: San Antonio, Texas
2001 Impreza RS

Default Back from the dead....

I went on a 90 mile drive which has its fair share of hills. Speeds are 55-70 all the way through.

Anyway, every big hill or long gradual slope I would either get on the gas a little early for momentum or drop down to 4th for extra power. A few times doing this I would get a distinct sulphur smell, and when the road leveled out the smell would go away.

I had a ton of camping supplies in the car with one passenger.

I've got 90k on the ticker.

Is the cat dying? Or are my borla's (unwrapped) causing problems for the converter?
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Old 03-15-2005, 04:30 PM   #8
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Member#: 72116
Join Date: Oct 2004
Chapter/Region: NESIC
Location: Maine
'97 Impreza 2.2t
Brilliant Red


I too, every once in a while smell the sulfur smell from my car. I have a 97 2.2L with 88k on the Odo. Only smelled it a few times though, so I'm not sure what it is. *shrug*
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Old 03-15-2005, 05:14 PM   #9
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Member#: 15559
Join Date: Feb 2002

Could be related to the battery. I had an older Ford pickup that smelled like rotten eggs . The cause turned out to be a bad voltage regulator which caused the battery to give off sulpher gas due to overcharging.
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