Emissions testing
Thread Starter
Race Director
Joined: Aug 2005
Posts: 13,592
Likes: 187
From: Hudson WI
NCM Sinkhole Donor
Emissions testing
I would not recommend anyone remove their catalytic converter, but does anyone know when emission testing is done via OBDII, and you don't have any codes, does it matter if the car has converters or not?
Team Owner
Joined: May 2001
Posts: 36,213
Likes: 2,511
From: ...tearing up the highways, one state at a time™®©
No, the "results" would be fine. However, most, if not all emissions programs require the inspector to look for the presence of all (major) emissions components.
Thread Starter
Race Director
Joined: Aug 2005
Posts: 13,592
Likes: 187
From: Hudson WI
NCM Sinkhole Donor
Safety Car
Joined: Aug 2006
Posts: 4,206
Likes: 6
From: Makena, Maui & NM
While this may be true, where I live, its a joke. The inspectors do have a mirror on a pole to look under the car....but they dont use them unless you flunk the OBD test. This also assumes an "inspector" 
knows the difference between a oem cat and a hi-flo cat. Few do. 
Advanced
Joined: Dec 2005
Posts: 62
Likes: 0
Most OBDII State inspections that are run through a vendor such as Gordon Darby just look for codes, readiness monitors and whether or not the code was just cleared. I have seen tuned cars with NO catalyst fly through with no problems...obviously you would fail the visual, however the catalyst on our cars is not 'in your face' when you look
Team Owner
Joined: May 2001
Posts: 36,213
Likes: 2,511
From: ...tearing up the highways, one state at a time™®©
Where do you live? A border crossing inspection tent/station
In my state - and ALL STATES ARE DIFFERENT (and why I gave a general opinion on the subject...) inspectors will actually look under the car without mirrors or other devices. The question wasn't about high-flow cats. It was about NO CATS. RTFM
Team Owner
Joined: May 2001
Posts: 36,213
Likes: 2,511
From: ...tearing up the highways, one state at a time™®©
Most OBDII State inspections that are run through a vendor such as Gordon Darby just look for codes, readiness monitors and whether or not the code was just cleared. I have seen tuned cars with NO catalyst fly through with no problems...obviously you would fail the visual, however the catalyst on our cars is not 'in your face' when you look
Corvette Stories
The Best of Corvette for Corvette Enthusiasts
5 Best & 5 Worst Corvette Daily Drivers
Joe Kucinski
The Headlights of Every Corvette Generation Explained
Joe Kucinski
5 Best & 5 Most Overrated Corvette Track Packages of All Time!
Joe Kucinski
Every 2027 Corvette Engine Explained
Joe Kucinski
Designer Imagines A Corvette That Looks More Like a Corvette Than the Corvette
Verdad Gallardo
10 Ugly Corvettes That We Still Kinda Love
Joe Kucinski
Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer
Brett Foote
10 Things Every Corvette Owner Needs (2026 Edition)
Michael S. Palmer
8 Most "Only Corvette Owners Understand" Quirks and Problems
Pouria Savadkouei
Thread Starter
Race Director
Joined: Aug 2005
Posts: 13,592
Likes: 187
From: Hudson WI
NCM Sinkhole Donor
Safety Car
Joined: Aug 2006
Posts: 4,206
Likes: 6
From: Makena, Maui & NM
Are you going to follow me around (CF.com) and add your pointless drivel
Where do you live? A border crossing inspection tent/station In my state - and ALL STATES ARE DIFFERENT (and why I gave a general opinion on the subject...) inspectors will actually look under the car without mirrors or other devices. The question wasn't about high-flow cats. It was about NO CATS. RTFM
Where do you live? A border crossing inspection tent/station
In my state - and ALL STATES ARE DIFFERENT (and why I gave a general opinion on the subject...) inspectors will actually look under the car without mirrors or other devices. The question wasn't about high-flow cats. It was about NO CATS. RTFM 
There is no law that on CF that I cannot comment on some of your pointless drivel you spew here too (does EVS/Corvette Conti ring a bell?). It does not matter cats or no cats, most inspectors do not have a clue of what a cat is anyways. There are no lifts at many State inspection stations in the USA, ergo no inspector is going to crawl under a car. Hence, the use of mirrors, most of which have not been cleaned in 5 years. Duh.
What state do you live in?
Last edited by siffert; Apr 12, 2009 at 09:13 AM.
Team Owner
Joined: May 2001
Posts: 36,213
Likes: 2,511
From: ...tearing up the highways, one state at a time™®©
There is no law that on CF that I cannot comment on your pointless drivel you spew everywhere here too. It doesnt matter cats or no cats, most inspectors do not have a clue of what a cat is anyways. There are no lifts at many State inspection stations in the USA, ergo no inspector is going to crawl under a car. Hence, the use of mirrors, most of which have not been cleaned in 5 years. Duh.
What state do you live in?
Originally Posted by *89x2*s profile
The last 10 visitor(s) to this page were:
Beatitt Fiery89 khblair LostAngel MDD LT1 Michael b photoguy siffert SpinMonster VETTE IV
Beatitt Fiery89 khblair LostAngel MDD LT1 Michael b photoguy siffert SpinMonster VETTE IV
Last edited by *89x2*; Apr 12, 2009 at 09:45 AM.