Welcome to the North American Subaru Impreza Owners Club Thursday August 21, 2014
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 > Factory 2.0L Turbo 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 11-20-2002, 12:52 PM   #1
Davenow
Scooby Guru
 
Member#: 23676
Join Date: Aug 2002
Chapter/Region: NESIC
Location: de_dust and Orgrimar
Vehicle:
.

Default Catless Uppipe+TurboXS stealthback, is there a way to pass emissions??

I am getting the turboXS stealth turbo back, it has one high flow cat, I also REALLY want to get rid of that up pipe cat, But I need to know is there a way to get it to pass an emissions test if I do this? I really dont want to have to keep/reinstall the factory turbo back every 2 years for emmissions testing.
Anyone???
* Registered users of the site do not see these ads.
Davenow is offline   Reply With Quote
Old 11-20-2002, 01:56 PM   #2
norseone
Scooby Specialist
 
Member#: 16350
Join Date: Mar 2002
Chapter/Region: MAIC
Location: Annapolis MD
Vehicle:
B8.5 Audi S4

Default

Yeah slip the tech a 20 spot.


-NORSe
norseone is offline   Reply With Quote
Old 11-20-2002, 02:03 PM   #3
WRX300
Scooby Newbie
 
Member#: 17974
Join Date: Apr 2002
Chapter/Region: MWSOC
Location: Chicago
Default

well at least here in IL you dont have to have smog till the car is about 5 years old....from what i have been reading at work the DMV will be changing how they run sniffer tests....it seems that in the next few years they will be removing the portion of the test that puts the car on the dynomoter and just plugging into the OBD system...which means if the OBD system says all is good (like with 02 sims and Capcitor fixes) then you will pass the emissions test...however im sorry i cant comment on your state but im sure something like that will be happening else where


~wrx300
WRX300 is online now   Reply With Quote
Old 11-20-2002, 04:57 PM   #4
koloumb
Scooby Newbie
 
Member#: 28268
Join Date: Oct 2002
Chapter/Region: NWIC
Location: Oregon
Vehicle:
2002 WRX Sedan
WRB

Default

Remember that you have an AWD car. A lot of DMV's aren't equipped to dyno an AWD car. They instead hook up to the car's computer to see if it reports any [emissions] codes. If it doesn't find any - you pass.

_Owen_
koloumb is offline   Reply With Quote
Old 11-20-2002, 05:33 PM   #5
slickvic
Scooby Specialist
 
Member#: 29727
Join Date: Nov 2002
Location: Indianapolis
Vehicle:
2003 Impreza WRX
Black

Default

Can anyone from indiana comment on whether or not cars here are tested for emmisions.
slickvic is offline   Reply With Quote
Old 11-20-2002, 06:39 PM   #6
NYC TURBO
Scooby Newbie
 
Member#: 25214
Join Date: Sep 2002
Location: New York City
Vehicle:
2002 WRX
Silver

Default

Don't buy the turboxs, buy the MRT turbo back. It is guaranteed to pass emission tests in all 50 states. The uppipe cat does absolutely nothing once the car is warm. It is meant for cold start emissions only. Once the car is warm all it is doing is blocking airflow. remove the uppipe and make sure the car is warm before you bring it for inspection and go with the MRT turboback and you will pass the test.



Lee
NYC TURBO is offline   Reply With Quote
Old 11-20-2002, 07:36 PM   #7
Sweet Dreams
Scooby Newbie
 
Member#: 25765
Join Date: Oct 2002
Location: Milwaukee, WI
Vehicle:
2002 Impreza WRX
Platinum Visa Metallic

Default

wrx300.....I think you may have just answered a question that's been on my mind the last few days.

Here in Wisconsin, we don't have to submit to a dyno/sniffer test if we have OBD II. They just plug into our port to see if we have thrown any CELs relating to emmisions equipment. I was thinking that if I have an O2 simulator in my turbo back, and no CELs, then I should probably pass the test.

By the way, in Wisconsin, we have to have emmisions done every other year. There is no 4 or 5 year waiting period for new cars.

What do you guys think?
Sweet Dreams is offline   Reply With Quote
Old 11-20-2002, 08:17 PM   #8
Schlad
Scooby Newbie
 
Member#: 25433
Join Date: Sep 2002
Location: SoCal
Vehicle:
2003 WRX SW
all we'll drive

Default interesting

If one were to pull the negative terminal, step on the brakes and then reconnect *right* before a smog check, would that clear any previous OBDII cat efficientcy codes? From what I've read, the car checks for cat efficentcy on sustained high speed cruising...
Schlad is offline   Reply With Quote
Old 11-20-2002, 08:20 PM   #9
hokiewrx
Scooby Newbie
 
Member#: 18505
Join Date: May 2002
Chapter/Region: MAIC
Vehicle:
2004 STi
PSM

Default

I have no cats, and I just did a 600 mile round trip this past weekend with no CEL. I've put about 1,500 on my car since I put the TXS SB w/ race pipe on. Go figure...
hokiewrx is offline   Reply With Quote
Old 11-20-2002, 08:22 PM   #10
ants wrx
Scooby Specialist
 
Member#: 17885
Join Date: Apr 2002
Chapter/Region: Tri-State
Location: Kearny, NJ
Vehicle:
2006 Scion xB
93 RB25det powered 240sx

Default

that is the same setup i have...uppipe + turboxs stealthback with cat.

anyone know if this will pass in NJ?
ants wrx is offline   Reply With Quote
Old 11-20-2002, 08:46 PM   #11
dave_the_driver
Scooby Newbie
 
Member#: 13588
Join Date: Dec 2001
Location: Albuquerque, NM
Vehicle:
2002 WRX sedan
Aspen White

Default NM checks the tailpipe emissions

You guys in states that let you drive a new car for 5+ years without a smog test are lucky. Here in Albuquerque it's every two years ... no ifs ands or buts. They plug something in to the engine and it automatically controls the RPMs (for testing both idle emissions and at speed, 3000 RPM ?). The sniffer probe they stick in the tailpipe measures CO as well as total hydrocarbons. They sure don't go by the OBDII codes alone, though they might check them to see if you've thrown an emissions-related code. The machines they now use are pretty expensive and "smart."

The way they used to do it, you could bring in two cars and have them scan the windshield VIN from one (the one without cats) and have them stick the probe and rev the engine on another car that's not modded. I'm not sure how they did it, but there were too many $20s (and then $50s) changing hands while two cars were being "tested" that they figured out a way to prevent it. So even if they wanted to fake the test (for $100+), i don't think it's possible. Of course, i'd be glad to be corrected if someone knows a way out of this.

I know someone with a European-spec imported Porsche 911 Turbo who'd gladly pay big bucks so that he doesn't have to have his mechanic mess with his car in the shop for a few days every two years so it can pass the test. He'd probably pay $500 because it takes his mechanic about 8 hours of labor for passing the test, and then to set it back for performance.

Hey, does anyone here in Bernalillo County have a UTEC in their WRX? I'm on the TXS waiting list as of last week, and will run my baby for a while at the stock setting and then maybe raise the boost and fuel curves a bit. Being that this is at 5000 feet, i'm afraid to play with advancing the timing.

Anyone in my situation who's nearby, please PM me. It would be great if i could do a roll-on test against another WRX with a UTEC and some mods so we can see what difference it makes.

I'm also looking for a mechanic, preferably someone unlicensed who's into high-performance turbo cars. There's five WRXs in my parking lot at work, but it seems that the only performance mods they've done are brakes, wheels, and tires. And that's just one guy. The rest are chicken and drive it like a normal car, it seems.

Well, i should talk. After rear-ending someone at low speed because of the slow and mushy stock brakes i put in the OEM replacement Porterfield pads all around. They're a huge improvement. Next up is the UTEC. Then the up-pipe.

Dave
dave_the_driver is offline   Reply With Quote
Old 11-20-2002, 11:53 PM   #12
doogdog
Scooby Specialist
 
Member#: 29308
Join Date: Nov 2002
Chapter/Region: NESIC
Location: MA
Vehicle:
2005 Outback XT LTD
Champagne Gold Opal

Default There is a way

As you know the emissions testing in MA sucks, give Adrenalin Motorsport in Auburn, MA a call. They do mostly WRX tuning and have the scoop on your concerns. Don't forget, you can't put your car on one of the inspection station dynos due to the all wheel drive. I had similar concerns and they gave me the skinny, good luck.
doogdog is offline   Reply With Quote
Old 11-21-2002, 06:43 AM   #13
z&cobb
Scooby Specialist
 
Member#: 12344
Join Date: Nov 2001
Chapter/Region: MAIC
Location: Mountains of Maryland
Vehicle:
2002 2JC
blue

Default Re: interesting

Quote:
Originally posted by Schlad
If one were to pull the negative terminal, step on the brakes and then reconnect *right* before a smog check, would that clear any previous OBDII cat efficientcy codes? From what I've read, the car checks for cat efficentcy on sustained high speed cruising...
I think you have drive to restore the I/M (Inspection/Maintenance?) OBD-2 monitors to all read "Ready".

I think if one of them is still "Not Ready" there will be a problem passing.

In my experience with P0420's which pop up under some situations, the scantool erase procedure puts all the I/M monitors in "not ready," and the last one to clear is the "Fuel Evaporative System"

So, yes you can clear a cel, but you should drive for a few days to a week to get all the I/M monitors reset.

I am going to do two more scenarios next:

1) What does a battery disconnect for a couple of hours do to the I/M monitors?

2) After the next p0420 occurance, pull the neg cable, install the PEP MIL eliminator and read the I/M monitors.
z&cobb is offline   Reply With Quote
Old 11-21-2002, 11:43 AM   #14
nmyeti
Scooby Specialist
 
Member#: 4980
Join Date: Mar 2001
Location: Albuquerque, NM USA
Default Re: NM checks the tailpipe emissions

Quote:
Originally posted by dave_the_driver

Hey, does anyone here in Bernalillo County have a UTEC in their WRX? I'm on the TXS waiting list as of last week, and will run my baby for a while at the stock setting and then maybe raise the boost and fuel curves a bit. Being that this is at 5000 feet, i'm afraid to play with advancing the timing.



Dave
Dave,
I moved away from Albuquerque this spring to work for Turboxs. I'll be back in town to visit my family around Christmas time, so who knows... I might be able to bring you a Christmas present

For what it's worth, on my old Unichip stage 2 I ran 13.2@101.3 in Roswell, and then on my stage 4 I ran 12.3@110.4

At the altitude of Albuquerque, you will need to play with the map just a little to get it just right, but once it's done, the results are well worth the effort.

-Nathan
www.turboxs.com
nmyeti is offline   Reply With Quote
Old 11-21-2002, 06:46 PM   #15
Schlad
Scooby Newbie
 
Member#: 25433
Join Date: Sep 2002
Location: SoCal
Vehicle:
2003 WRX SW
all we'll drive

Default Re: Re: interesting

Quote:
Originally posted by z&cobb


I think you have drive to restore the I/M (Inspection/Maintenance?) OBD-2 monitors to all read "Ready".

I think if one of them is still "Not Ready" there will be a problem passing.

In my experience with P0420's which pop up under some situations, the scantool erase procedure puts all the I/M monitors in "not ready," and the last one to clear is the "Fuel Evaporative System"

So, yes you can clear a cel, but you should drive for a few days to a week to get all the I/M monitors reset.

I am going to do two more scenarios next:

1) What does a battery disconnect for a couple of hours do to the I/M monitors?

2) After the next p0420 occurance, pull the neg cable, install the PEP MIL eliminator and read the I/M monitors.
Most excellent! Keep me/us posted on what you find! I guess it's obvious that I do not (yet) have a scantool.
Schlad is offline   Reply With Quote
Old 11-30-2002, 04:33 AM   #16
dave_the_driver
Scooby Newbie
 
Member#: 13588
Join Date: Dec 2001
Location: Albuquerque, NM
Vehicle:
2002 WRX sedan
Aspen White

Default Re: Re: NM checks the tailpipe emissions

Quote:
Originally posted by nmyeti


Dave,
I moved away from Albuquerque this spring to work for Turboxs. I'll be back in town to visit my family around Christmas time, so who knows... I might be able to bring you a Christmas present

For what it's worth, on my old Unichip stage 2 I ran 13.2@101.3 in Roswell, and then on my stage 4 I ran 12.3@110.4

At the altitude of Albuquerque, you will need to play with the map just a little to get it just right, but once it's done, the results are well worth the effort.

-Nathan
www.turboxs.com
Nathan, i didn't see your reply until tonght. I had gotten the impression that you couldn't help me in getting the UTEC set up for Albuquerque's altitude and 91 octane gas. If i had seen this reply earlier, i wouldn't have canceled my UTEC order. I know you used to live here. We both know John V., the Impulse RS lover. I'm working on getting a high-flow cat-included turbo-back exhaust. I was just not willing to hook something up that would detonate all over the place unless i could get some help in remapping it.

David
dave_the_driver is offline   Reply With Quote
Old 11-30-2002, 12:44 PM   #17
koloumb
Scooby Newbie
 
Member#: 28268
Join Date: Oct 2002
Chapter/Region: NWIC
Location: Oregon
Vehicle:
2002 WRX Sedan
WRB

Default Re: NM checks the tailpipe emissions

Quote:
Originally posted by dave_the_driver
I'm also looking for a mechanic, preferably someone unlicensed who's into high-performance turbo cars. There's five WRXs in my parking lot at work, but it seems that the only performance mods they've done are brakes, wheels, and tires. And that's just one guy. The rest are chicken and drive it like a normal car, it seems.
Dave
Aren't there any small clubs that host install days in your area? Usually the person hosting it has the room, tools and experience of others to help install mods.

_Owen_
koloumb is offline   Reply With Quote
Old 11-30-2002, 12:57 PM   #18
dave_the_driver
Scooby Newbie
 
Member#: 13588
Join Date: Dec 2001
Location: Albuquerque, NM
Vehicle:
2002 WRX sedan
Aspen White

Default Re: Re: NM checks the tailpipe emissions

Quote:
Originally posted by koloumb


Aren't there any small clubs that host install days in your area? Usually the person hosting it has the room, tools and experience of others to help install mods.

_Owen_
i don't know of any such thing in Albuquerque. My garage is pretty small and i don't have a lot of tools or much mechanical experience with new cars, but i can provide food and drink.

David
dave_the_driver is offline   Reply With Quote
Old 11-30-2002, 01:10 PM   #19
mlambert
Scooby Guru
 
Member#: 13831
Join Date: Jan 2002
Location: 99 problems but a bitch aint 1
Default Re: Re: Re: NM checks the tailpipe emissions

Quote:
Originally posted by dave_the_driver


i don't know of any such thing in Albuquerque. My garage is pretty small and i don't have a lot of tools or much mechanical experience with new cars, but i can provide food and drink.

David
Thats always the most rewarding way of working on cars. Here in portland we are amazingly fortunate to have Mr Perrins experience, Mr Sponaugles amazing garage, and a group of really great guys to help get everything worked out. When I lived in Houston it didnt take me long to find a group of enthusiasts that got together bi-weekly or so and hosted install days. Nothing beats getting together with people that share a common interest and help you work through a tough install.

Youll find folks to help you, maybe get to know the local DSM crowd if you cant find subaru owners that turn wrenches. What about AZScooby and that group?
mlambert is offline   Reply With Quote
Old 12-02-2002, 03:23 PM   #20
z&cobb
Scooby Specialist
 
Member#: 12344
Join Date: Nov 2001
Chapter/Region: MAIC
Location: Mountains of Maryland
Vehicle:
2002 2JC
blue

Default Re: Re: Re: interesting

Quote:
Originally posted by Schlad


Most excellent! Keep me/us posted on what you find! I guess it's obvious that I do not (yet) have a scantool.
The evaporative emissions I/M eventually reset, but it took longer than the other 1/2 dozen. That's after erasing a P0420 CEL directly with an OBD-2 scantool, and not installing my MIL eliminator or disconnecting the battery.

Unfortunately it takes two events to get the P0420 CEL on. This means you miss 1/2 of the events.

I wonder if catching and erasing the 1st event would keep the Inspection/Monitoring tests in their "Ready" states?

Current Conditions:
Stage 2 UTEC with 93* octane "non-oxygenated" program
with the TXS TMIC, 16.5 psi, stock intake with K&N filter, stock uppipe, 5W-30 Mobil Synthetic. Ambient Temps from about 28F to 60F, oil temps with a fully warmed engine range from 60 to 80C, elevations about 1000 to 1500 ft.

*I use Exxon 93 octane from an exempt county. It's 15 cents cheaper than "city slicker" gas designed by the EPA.
z&cobb is offline   Reply With Quote
Old 12-02-2002, 04:15 PM   #21
nmyeti
Scooby Specialist
 
Member#: 4980
Join Date: Mar 2001
Location: Albuquerque, NM USA
Default Re: Re: Re: Re: NM checks the tailpipe emissions

Quote:
Originally posted by mlambert

Youll find folks to help you, maybe get to know the local DSM crowd if you cant find subaru owners that turn wrenches. What about AZScooby and that group?
For the record... since this seems to come up every time I tell someone I used to live in Albuquerque.

Albuquerque is in New Mexico, and is several hours of driving from Arizona.

Dave,
I sent you a PM.

-Nathan
nmyeti is offline   Reply With Quote
Old 12-02-2002, 04:31 PM   #22
mlambert
Scooby Guru
 
Member#: 13831
Join Date: Jan 2002
Location: 99 problems but a bitch aint 1
Default

last time i drove I-10 thru AZ/NM i didnt even know I was in NM by the time I hit el paso, its not that far
mlambert is offline   Reply With Quote
Old 12-02-2002, 05:12 PM   #23
nmyeti
Scooby Specialist
 
Member#: 4980
Join Date: Mar 2001
Location: Albuquerque, NM USA
Default

Quote:
Originally posted by mlambert
last time i drove I-10 thru AZ/NM i didnt even know I was in NM by the time I hit el paso, its not that far


474.95miles to be exact.
nmyeti is offline   Reply With Quote
Old 12-02-2002, 06:48 PM   #24
silvercharged
Scooby Newbie
 
Member#: 19295
Join Date: May 2002
Location: Kick it out!
Default

Quote:
Originally posted by z&cobb


I think you have drive to restore the I/M (Inspection/Maintenance?) OBD-2 monitors to all read "Ready".

I think if one of them is still "Not Ready" there will be a problem passing.

In my experience with P0420's which pop up under some situations, the scantool erase procedure puts all the I/M monitors in "not ready," and the last one to clear is the "Fuel Evaporative System"

So, yes you can clear a cel, but you should drive for a few days to a week to get all the I/M monitors reset.
To elaborate a little futher on this......I live in Maryland, which is now doing OBD scans as their emissions testing.....
The Auto X-Ray code scanner I have not only erases the CEL and turns off the Check Engine Light, but, at the same time, resets the "readiness tests" that are incorporated into the ECU......

Nice tool for $132.00
silvercharged is offline   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
Is there a way to make Word export to HTML in a simple format? Jessie James Off-Topic 11 02-27-2004 04:06 PM
is there a way to read what my cel is akcel Engine Management & Tuning 4 02-23-2004 06:22 AM
is there a way to d/l the UTEC software to practice? wrxtuner02 Engine Management & Tuning 2 12-05-2002 01:41 PM
Any way to pass emissions? N/A01RS Normally Aspirated Powertrain 24 10-28-2002 10:10 AM
('93-'01) Is there any way to find out if the WRX is the most crashed "new" car this year? Snoopy Impreza Forum 25 10-16-2002 01:53 AM


All times are GMT -4. The time now is 03:19 PM.


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