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Old 11-13-2001, 03:31 PM   #1
Robmat
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Location: Daytona Beach FL USA/ Tampa FL USA
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2000 2.5 RS
BRP

Question Help! Constant Sulphur smelll!

What can I do to get rid of it or is it something that I shouldn't worry about? I'm worried about my subie. I've given it a visual check and don't see anything amiss. What should I do next?

Robmat
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Old 11-13-2001, 03:34 PM   #2
ryball
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Take a look at the owner's manual or do a search. I think that there was something about the CC causing sulfur smells with higher octane or race gas... hope that helps.
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Old 11-13-2001, 03:42 PM   #3
Robmat
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I have always use 87 octane.
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Old 11-13-2001, 03:53 PM   #4
lempdawg
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I also had a problem with sulphur smell. Shortly after my check engine light had come on. Went and got the code run and the told me it was the O2 sensor. Apparently there was a recall on the 2000 Impreza 2.5RS for the O2 Sensor. The problem went away for about 20k miles but the check engine light came on today and the O2 sensor was the culprit. To bad it's no longer covered under my warranty any more.
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Old 11-13-2001, 04:53 PM   #5
RaceCarRiot
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i dunno...my car is developing this funny burning smell every time i drive it...

it used to be an occasional thing, like if i ran on the highway for a long time in hot weather, but now i can smell it every time i get out of the car...it was even tricking in through the vent on low speed when i had the windows up this morning.

it smells like sort of like oil, but i'm not burning any, so i don't think it's that...what does mobil 1 smell like if it starts to burn? or is that even a problem with synthetic?

argh. the car is running fine as always, but i smell it everytime i park it and get out...

-adam-
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Old 11-13-2001, 06:04 PM   #6
Robmat
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I have already had the O2 sensor replaced and not too long ago. The car seems to run fine, it just smells bad

Robmat
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Old 11-13-2001, 07:23 PM   #7
joltdudeuc
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i got that smell also... i'm gonna repalce my cat(s)...

(i don't know if i have one or two!)

-Gagan
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Old 11-14-2001, 12:07 PM   #8
Tkacik
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Quote:
Originally posted by joltdudeuc
i got that smell also... i'm gonna repalce my cat(s)...

(i don't know if i have one or two!)

-Gagan

you have two.
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Old 11-14-2001, 02:13 PM   #9
omahasubaru
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Robmat, give us the whole story... I'm guessing you just recently put your STi exhaust on with a new custom midpipe?

I had the same problem with sulfur smell for about 2 weeks then it was gone. Had to do with the treatment material on the SS midpipe. I wouldn't worry unless it never goes away in a month or so.

Jon
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Old 11-14-2001, 03:02 PM   #10
whitt
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Hopefully it goes away, but if it is not a new exhaust system it sounds like the cats, when the material in them is used up it begins to smell like sulfer, not all bad though this could be the perfect time to put on a high flow cat
good luck
DW
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Old 11-14-2001, 03:02 PM   #11
Blindeye_03
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Have a look at your cat(s).

-justin
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Old 11-14-2001, 03:34 PM   #12
Robmat
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It is a new (used though) muffler and new midpipe, but I had this smell before the new parts. How can I phsically tell if it is the cat(s)? I'm headed in for service Friday, so I will ask the dealer as well.

Robmat
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Old 10-12-2009, 09:33 AM   #13
ChildrenOfNiobi
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What would you all consider a "normal" mileage to replace the cats? My Tribeca has about 35k miles and yesterday I started it and it started to reek of sulfur immediately.

Is that an expensive service to have done?
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Old 10-12-2009, 06:23 PM   #14
RaceFaceXC
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more than 35k... but lots of things may effect the life of the cats. i would verify that there are no other problems before messing with the cats @ 35k. Have been using odd-ball gas or messing with the tune or anything?
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Old 10-12-2009, 07:46 PM   #15
Charlie-III
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Quote:
Originally Posted by RaceFaceXC View Post
more than 35k... but lots of things may effect the life of the cats. i would verify that there are no other problems before messing with the cats @ 35k. Have been using odd-ball gas or messing with the tune or anything?
+1.

I ran my CAT's until ~150K miles until I finished upgrading the exhaust and using new HFC's.
My wifes 99 Impreza L (2.2L) has ~110K miles on the OEM CAT.

Emission parts should last 100K + miles, this is a US Federal mandate!
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