General GM Chat When starting new posts, please specify YEAR, MAKE, MODEL, ENGINE type, and whatever modifications you have made. Chat about all things GM (and related cars). Off-topic stuff should be in the Lounge, and all Model specific mechanical problems should be posted in the proper forum.

Performance Mods and Emmissions Testing

Old Mar 24, 2007 | 10:44 AM
  #1  
dillcc's Avatar
Thread Starter
Senior Member
True Car Nut
 
Joined: Mar 2005
Posts: 2,689
Likes: 0
dillcc is on a distinguished road
Default Performance Mods and Emmissions Testing

Here in the Chicago area we have emmissions testing. I'm planning on SLP headers with the SLP cat, stage1 cam, 3.2 (maybe 3.0 if I get a P&P'd SC), and the proper Intense PCM burn to go with.

Has anyone running the SLP'*/cat passed emmissions testing?


On another note...if I ever go crazy enough to go intercooled I'd have to remove the EGR. Any ideas if that'll pass emissions?
Reply
Old Mar 24, 2007 | 10:50 AM
  #2  
bandit's Avatar
Senior Member
True Car Nut
 
Joined: Jan 2006
Posts: 8,029
Likes: 1
From: NEBF:06,07 | NYBF:06,07 | ONBF:06,07 | CNBF:06 & more............
bandit is on a distinguished road
Default

ok "emmissions testing"

Do they stick something up you tail pipe there? or do they just go by what the PCM tells them?

Cuz in NY they just do "emmissions testing" buy seeing what the Computer tells them
Reply
Old Mar 24, 2007 | 12:13 PM
  #3  
dillcc's Avatar
Thread Starter
Senior Member
True Car Nut
 
Joined: Mar 2005
Posts: 2,689
Likes: 0
dillcc is on a distinguished road
Default

I'm almost positive it'* measured at the tailpipe, but I think they check the PCM as well for emissions codes.

That raises another question...would they be able to tell if you have an emissions DTC deleted or would it just look "healthy" to them? Because I'm pretty sure you get the rear O2 deleted with the SLP cat.
Reply
Old Mar 24, 2007 | 01:16 PM
  #4  
agrazela's Avatar
Senior Member
Posts like a Corvette
 
Joined: Jan 2007
Posts: 1,451
Likes: 0
From: San Diego, CA
agrazela is on a distinguished road
Default

IMO, your cam is the thing most likely to make you fail a tailpipe sniff emissions test, due to increased overlap passing unburned HC'*.
Reply
Old Mar 24, 2007 | 02:26 PM
  #5  
DarkShadow's Avatar
Senior Member
Posts like a Corvette
 
Joined: Jun 2005
Posts: 1,596
Likes: 0
From: Berkeley, IL
DarkShadow is on a distinguished road
Default

hehe

youre in luck, in Illinois we have emissions testing every couple years for cars.

cars 96 and newer just get an obd2 scan, no sniffer in the tailpipe, so no codes = pass.

cars 95 and older got the sniffer but as of this year all obd1 and older cars are exempt from emissions testing
Reply
Old Mar 24, 2007 | 04:28 PM
  #6  
dillcc's Avatar
Thread Starter
Senior Member
True Car Nut
 
Joined: Mar 2005
Posts: 2,689
Likes: 0
dillcc is on a distinguished road
Default

WOOHOO!!!
Reply
Old Mar 25, 2007 | 10:37 AM
  #7  
BillBoost37's Avatar
DINOSAURUS BOOSTUS

Expert Gearhead
 
Joined: Mar 2005
Posts: 41,391
Likes: 30
From: Enfield, CT
BillBoost37 is a glorious beacon of lightBillBoost37 is a glorious beacon of lightBillBoost37 is a glorious beacon of lightBillBoost37 is a glorious beacon of lightBillBoost37 is a glorious beacon of lightBillBoost37 is a glorious beacon of light
Default

Bob... PDXGTP just passed emissions. Same testing company and methods for your state. If he can pass..you'll fly.
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
jwakamud
Lounge
2
Dec 21, 2006 08:16 PM


Thread Tools
Search this Thread

All times are GMT -4. The time now is 02:56 AM.