Welcome to the North American Subaru Impreza Owners Club Monday May 4, 2015
Home Forums WikiNASIOC Products Store Modifications Upgrade Garage
NASIOC
Here you can view your subscribed threads, work with private messages and edit your profile and preferences Home Registration is free! Visit the NASIOC Store NASIOC Rules Search Find other members Frequently Asked Questions Calendar Archive NASIOC Upgrade Garage Logout
Go Back   NASIOC > NASIOC Technical > Normally Aspirated Powertrain

Welcome to NASIOC - The world's largest online community for Subaru enthusiasts!
Welcome to the NASIOC.com Subaru forum.

You are currently viewing our forum as a guest, which gives you limited access to view most discussions and access our other features. By joining our community, free of charge, you will have access to post topics, communicate privately with other members (PM), respond to polls, upload content and access many other special features. Registration is free, fast and simple, so please join our community today!

If you have any problems with the registration process or your account login, please contact us.
* Registered users of the site do not see these ads.
Reply
 
Thread Tools Display Modes
Old 06-20-2001, 08:36 AM   #1
Joncas
Scooby Specialist
 
Member#: 5349
Join Date: Mar 2001
Location: Central New York
Have a Nice Day? Exhaust smells like rotten eggs

Everytime I put my foot in it, either marginally or through the fan blade, the exhaust smells like rotten eggs

Now I think it has something to do with the catalytic converter right? I brought the car in once before for service for this same problem and they said they couldn't recreate it. Bunky.

So here's my questions -
1. Is it covered under warranty (MY 99 with 18,000 miles)
2. The problem started before I put on my stromung muffler (no midpipe yet). However, now I have the muffler on. Will they try to blame it on that? Should I remove my stromung muffler and reinstall factory?
3. What types of things can cause that smell problem?

It's an embarrassment I tell ya.

Thanks all.
* Registered users of the site do not see these ads.
Joncas is offline   Reply With Quote
Old 06-20-2001, 08:57 AM   #2
tmaler13
Scooby Newbie
 
Member#: 1992
Join Date: Jul 2000
Location: Port Jefferson, LI
Default

Did you check your pants??????

Seriously the 99's run rich, which means ever so often your gonna smell rotten eggs, its the unburned fuel in your exhaust.
putting on an intake might lean things up a little bit, so would getting a S-AFC. BTW do you have carbon around the rim/tip of your muffler? Thats a sure sign.

-Terry
tmaler13 is offline   Reply With Quote
Old 06-20-2001, 08:58 AM   #3
Opie
Floresbian
Moderator
 
Member#: 470
Join Date: Oct 1999
Chapter/Region: South East
Location: Riverview, Florida - U.S.A.
Vehicle:
2015 Forester 2.0XT
'14 XV Crosstrek, '99 SF

Default

Yes, rotten egg smell is usually a problem with the converter, it should be warrantied for 60,000 miles.
Opie is online now   Reply With Quote
Old 06-20-2001, 10:21 AM   #4
subarurabbit
Scooby Guru
 
Member#: 4083
Join Date: Feb 2001
Chapter/Region: NESIC
Location: Reading, MA
Vehicle:
2011 OB 3.6R
silver

Default

I'd say your cats are gone too.

Roger
subarurabbit is offline   Reply With Quote
Old 06-20-2001, 12:06 PM   #5
munkis
Scooby Guru
 
Member#: 1847
Join Date: Jul 2000
Chapter/Region: Tri-State
Location: brokenmotorsports.com
Vehicle:
Team Broken: V6 GF
rallyarmor.com

Default

From my experience as a technician the smell is directly related to fooked up cats.

My RS has stunk like rotten eggs ever since it was new, the service adviser tells me its normal everytime I go in and complain about it, he makes me want to jump over the counter and smack him upside his head for lieing to my face. Makes me more mad because he knows im a technician. errrrrr

Yup it got even worse when I put my stromung cat back on, high flow exhuast, makes it more evident.

Stilling searching for answers...

Jay McDade
Auto Tech--Lincoln/Mercury/Jaguar
www.hometown.aol.com/impreza25rs2000
munkis is offline   Reply With Quote
Old 06-20-2001, 02:42 PM   #6
nikkicalves
Scooby Newbie
 
Member#: 3608
Join Date: Jan 2001
Location: the T-dot - The green igloo billowing black smoke
Vehicle:
2000 Impreza
Tanned - BRP

Default

I don't think that it a bad catalitic, but more like it's going fast. I don't think this many people have "bad" catalitics. didn't someone say something about this before, that if you beat the car, the cat wears out faster causing the internals to burn up faster than usual causing a smell? I drive the car hard on a daily basis and I still get that awful smell every time. It sucks.

Nick.
nikkicalves is offline   Reply With Quote
Old 06-20-2001, 03:25 PM   #7
SubyTechMaster
Scooby Specialist
 
Member#: 4423
Join Date: Feb 2001
Location: Placerville, CA USA
Vehicle:
'04 08 Tribeca, SVX
Gold, Maroon

Default

Subaru issued a bulletin about this some time back. It will often have to do with the sulfer content of the fuel. The emissions system is designed for low sulfer fuel (up 100ppm) such as found in CA. Fuel in the northeast states averages around 200ppm. Federal limits are 1000ppm. So even if your car is working perfectly, it may still stink. Try switching brands of fuel.
SubyTechMaster is offline   Reply With Quote
Old 06-20-2001, 03:54 PM   #8
nikkicalves
Scooby Newbie
 
Member#: 3608
Join Date: Jan 2001
Location: the T-dot - The green igloo billowing black smoke
Vehicle:
2000 Impreza
Tanned - BRP

Default

That was also my initial thought but it didn't make that much of a difference. I have tried three different brands and grades for a few weeks at a time. It make very little difference here in Canada.

Nick.
nikkicalves is offline   Reply With Quote
Old 06-20-2001, 04:01 PM   #9
munkis
Scooby Guru
 
Member#: 1847
Join Date: Jul 2000
Chapter/Region: Tri-State
Location: brokenmotorsports.com
Vehicle:
Team Broken: V6 GF
rallyarmor.com

Default

Im not sure but seeing how NJ has the same emmisions standards as california, sulfer ratings are probably the same...but dont quote me, ill have to check into it.

With mine im talking about highway cruise, it makes me want to puke! or even slow parking lot manuevers. Plus I have poor gas mileage to boot. Since im in the business ive exhausted every option I can think of b4 taking in to the dealer.

If SOA knows about the problem, how about some redesigned cats to work with the higher sulfer content fuel.

Mercury Cougars had the same problem and we now change the thired catatylic converter for this concern...

Ive tried all different brands of fuel, way before I even complained about it. Now I just deal with it till they blow up not that they would.

Last edited by munkis; 05-07-2009 at 02:19 PM.
munkis is offline   Reply With Quote
Old 06-20-2001, 04:03 PM   #10
subenutt
Scooby Newbie
 
Member#: 930
Join Date: Feb 2000
Location: Northern, CT USA
Vehicle:
99 Impreza 2.5RS
Aspen White

Default MY99 does not run Rick

tmaler13- MY99's do NOT run rich. In fact, they are one of the only model years that run lean. Dangerously lean above 5k. Therefore, the S-AFC is needed to richen the fuel mixture.

Sports Compact Car did a story on installing an intake, exhaust, and finally SAFC. They didn't realize it would run too lean, until they saw a drastic slip in hp on the dyno. I think the article was in March '00 or something like that? There's a pic of a Yellow Type R on the cover.

By the way, after installing the S-AFC shiv saw a gain/ re-gain of about 10hp to the wheels above 5k.
subenutt is offline   Reply With Quote
Old 06-20-2001, 04:44 PM   #11
tmaler13
Scooby Newbie
 
Member#: 1992
Join Date: Jul 2000
Location: Port Jefferson, LI
Default

hmmmm....
Sorry didn't mean to misguide you,
its just that my 99 has run rich since day one...without any mods, now with an intake and full header exhaust i'm still running rich. O2 sensor on the S-AFC shows a rich condition as does the amounts of carbon deposits on my exhaust.
guess its just me...
-Terry
tmaler13 is offline   Reply With Quote
Old 06-20-2001, 09:11 PM   #12
Santo Domingo 2.5 RS
Scooby Specialist
 
Member#: 5354
Join Date: Apr 2001
Location: Santo Domingo. R.D
Vehicle:
2000
Silverthorn Metallic

Lightbulb

I had that same problem like a month ago, each time i used to step on the gas, this smell came in. Some friend of mine told me he used to have the same problem on an AMG E-55 he owns, son he told me to remove the cats and install a dynomax resonator where the cat goes.

So i did, and the problem is gone besides adding some power to the car. I would recommend you to do the same.
Santo Domingo 2.5 RS is offline   Reply With Quote
Old 06-20-2001, 11:42 PM   #13
Joncas
Scooby Specialist
 
Member#: 5349
Join Date: Mar 2001
Location: Central New York
Default

I'm getting the feeling that I should try bringing it in and if they don't fix anything (like put in a new cat or two) - I'm bumming. Of course - only more reason to put on my stromung track pipe that removes the 2nd cat. 1 less cat equals less stink.

Thanks for the thoughts.
Joncas is offline   Reply With Quote
Old 06-21-2001, 07:52 AM   #14
TurboDude390
Scooby Newbie
 
Member#: 3120
Join Date: Dec 2000
Location: Indianapolis, Indiana, USA
Lightbulb

I had the same smell and bad gas mileage with my '00 RS. When the dealer did the O2 sensor recall fix two months ago BOTH problems went away.
Before the O2 sensor recall I tired the low sulfer gas and every diferent brand of gas available to me in the midwest and still had the bad smell. I figured the low gas mileage was due to running the hell out of my RS.
As a side note my tailpipe went from black and sooty to totally clean after the new O2 sensor was installed. This leads me to believe in my case that extra fuel was being feed into the engine due to the bad O2 sensor. This fuel was being passed out the exhaust while un-burnt and being burned in the converter.
The floor in my RS would be so hot before the O2 sensor recall that passengers in front would complain that their shoes were smoking hot!
TurboDude390 is offline   Reply With Quote
Old 06-21-2001, 10:38 AM   #15
OutAtSea
Scooby Newbie
 
Member#: 7578
Join Date: Jun 2001
Location: Cazenovia, NY
Talking

Mr. Joncas, I suggest that you give your RS to your dear friend with the beat up Ranger. I don't think he will mind the smell since his truck barely runs.

Anyway, like I have said before, take out that damn second cat and throw the freakin track pipe on. Then, put a new O2 sensor in the track pipe and all should be good. After that, let that same friend with the Ranger drive the car for a day or so, so he can gather up some ladies for a "movie" night.

Later man

OutAtSea
OutAtSea is offline   Reply With Quote
Old 06-21-2001, 04:24 PM   #16
Joncas
Scooby Specialist
 
Member#: 5349
Join Date: Mar 2001
Location: Central New York
Default

I love the reponses this car gets...

Thanks all for the opinions and thoughts. I'll let you know tomorrow what I find at the dealer.
Joncas is offline   Reply With Quote
Old 06-22-2001, 06:51 AM   #17
99 RS 2.5
Guest
 
Member#:
Default

My car does the same thing , even more so with after market exhaust. I believe it's just running rich like everyone says and i also agree with that not this many people have bad exhaust. Car runs good still and no loss of power which is not right if you have a bad cat. If car is bad car isn't going to run that great and you'd smell it all the time not just after getting on it a bit. Just my 2cents
  Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
05 WRX exhaust smells like burning corn all the time...Help! jornander Factory 2.0L Turbo Powertrain (EJ Series Factory 2.0L Turbo) 19 01-15-2009 10:00 AM
exhaust smells like sulfur 03sti Factory 2.0L Turbo Powertrain (EJ Series Factory 2.0L Turbo) 5 05-08-2008 08:24 AM
My farts smell like rotten eggs.... The Tree Off-Topic 16 07-04-2005 05:59 PM
my farts smell like rotten pumpkin.. alacrity024 Off-Topic 24 03-24-2005 12:56 PM
Exhaust smells like ass! PntBllRS Normally Aspirated Powertrain 44 04-08-2002 01:12 AM


All times are GMT -4. The time now is 02:44 AM.


Powered by vBulletin® Version 3.7.0
Copyright ©2000 - 2015, Jelsoft Enterprises Ltd.
Powered by Searchlight © 2015 Axivo Inc.
Copyright ©1999 - 2014, North American Subaru Impreza Owners Club, Inc.