C5 Scan & Tune Corvette Onboard Diagnostics, Service Advice, Dyno Tuning, Fuel Management, Tuning Software, LS1 Edit, AutoTap, Diablo
Sponsored by:
Sponsored by: Kraken

NY emissions test

Thread Tools
 
Search this Thread
 
Old Mar 28, 2016 | 08:58 PM
  #1  
TA Racer's Avatar
TA Racer
Thread Starter
Instructor
10 Year Member
 
Joined: Nov 2006
Posts: 102
Likes: 4
Default NY emissions test

I plan on installing a TSP cam in my 99 corvette along with headers. I have learned that NY State has made the emission test more difficult to pass. Do any of you have experience with the new test? Are you able to pass it with similar mods?
Reply
Old Mar 29, 2016 | 02:46 AM
  #2  
tblu92's Avatar
tblu92
Le Mans Master
20 Year Member
Conversation Starter
 
Joined: Aug 2005
Posts: 5,375
Likes: 328
From: CA.
St. Jude Donor '13-'14-'15
Default

I am in Calif but I believe we have similar smog laws
Long tube headers here are ALL illegal---they are " visually" non compliant
Shorty headers are legal only IF they are certified by CARB again visually they must have a CARB label welded to the headers

As far as cams go---The largest cam that we can get to pass in Calif is something in the mid 220's of duration at .050 Lift doesn't matter--Finally the LSA should be no lower than a 114---Tuning would be a must just to get the engine to start and run and idle correctly
Reply
Old Apr 5, 2016 | 09:45 AM
  #3  
Fast one's Avatar
Fast one
Le Mans Master
25 Year Member
Liked
Loved
Community Favorite
 
Joined: Jan 2001
Posts: 5,015
Likes: 508
From: Hilton NY
Default

How has the test been made more difficult to pass? Right now if the check engine light is on the car will fail, if it's off the car will pass.
Reply
Old Apr 5, 2016 | 01:52 PM
  #4  
DOUG @ ECS's Avatar
DOUG @ ECS
Premium Supporting Vendor
20 Year Member
Liked
Loved
Community Favorite
 
Joined: Oct 2004
Posts: 23,599
Likes: 1,225
From: Providing the most proven supercharger kits for your C5/6/7 609-752-0321
Default

Originally Posted by Fast one
How has the test been made more difficult to pass? Right now if the check engine light is on the car will fail, if it's off the car will pass.

I'm told they will be checking the check sum numbers, same way GM detects a tune, so if anything is changed in the PCM, even a fan setting, the numbers will not add up the same and you will fail.

If this is the case, performance mods as we know it will be crushed and an entire industry will go under.
Reply
Old Apr 18, 2016 | 12:54 AM
  #5  
tblu92's Avatar
tblu92
Le Mans Master
20 Year Member
Conversation Starter
 
Joined: Aug 2005
Posts: 5,375
Likes: 328
From: CA.
St. Jude Donor '13-'14-'15
Default

Originally Posted by Fast one
How has the test been made more difficult to pass? Right now if the check engine light is on the car will fail, if it's off the car will pass.
You are correct---Theoretically IF you have no check engine light and ALL your readiness tests say "ready" then they have to pass you regardless if you have a cam or not or other certain mods---A CAI and LT headers and going catless won't pass because those are VISUAL tests
Where it gets tricky with mods like heads/cams etc--Is often these mods will create FALSE codes that will trigger a check engine light--But of course with tuning you can permanently delete all those false codes
Reply
Old Apr 18, 2016 | 06:05 PM
  #6  
StrangelovesM6Vert's Avatar
StrangelovesM6Vert
Le Mans Master
 
Joined: Jul 2013
Posts: 5,699
Likes: 147
Default

Originally Posted by DOUG @ ECS
I'm told they will be checking the check sum numbers, same way GM detects a tune, so if anything is changed in the PCM, even a fan setting, the numbers will not add up the same and you will fail.

If this is the case, performance mods as we know it will be crushed and an entire industry will go under.
My mechanic says New York City and Nassau County have enhanced emissions tests vs lower emissions tests for the rest of the state.

Would this stricter test apply to the whole state or just NYC and Nassau County?
Reply

Get notified of new replies

To NY emissions test





All times are GMT -4. The time now is 07:54 AM.

story-0
10 Ugly Corvettes That We Still Kinda Love

Slideshow: 10 ugly Corvettes that we still kinda love.

By Joe Kucinski | 2026-06-03 10:34:17


VIEW MORE
story-1
Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer

A lot of money has changed hands at the online auction house over the years.

By Brett Foote | 2026-06-03 10:21:50


VIEW MORE
story-2
10 Things Every Corvette Owner Needs (2026 Edition)

Slideshow: 10 great gifts Corvette enthusiasts actually want for Father's Day!

By Michael S. Palmer | 2026-06-03 15:43:40


VIEW MORE
story-3
8 Most "Only Corvette Owners Understand" Quirks and Problems

Slideshow: These are the quirks, annoyances, and oddly lovable problems that every Corvette owner eventually learns to live with.

By Pouria Savadkouei | 2026-05-28 09:31:39


VIEW MORE
story-4
10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years

Slideshow: 10 reasons why the C6 Z06 is still a performance benchmark after 20 years.

By Joe Kucinski | 2026-05-27 17:20:09


VIEW MORE
story-5
How Much Horsepower Every Corvette Engine "LOST" in 1972

Slideshow: How much horsepower every Corvette engine lost in 1972.

By Joe Kucinski | 2026-05-27 16:54:53


VIEW MORE
story-6
Top 10 DOs and DON'Ts for Protecting Your Convertible Top!

Slideshow: How to Protect A Convertible Top: 10 DOs & DON'Ts

By Michael S. Palmer | 2026-04-03 00:00:00


VIEW MORE
story-7
Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!

Slideshow: The 10 most explosive Corvettes ever built based on power-to-weight ratio.

By Joe Kucinski | 2026-05-20 07:23:03


VIEW MORE
story-8
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter

Slideshow: From C1 to C8 we compare every Corvette generation by the numbers.

By Joe Kucinski | 2026-05-12 16:54:12


VIEW MORE
story-9
8 Coolest Corvette Pace Cars (and Replicas) of All Time

Slideshow: Some Corvette pace cars became collectible legends, while others perfectly captured the look and attitude of their era.

By Verdad Gallardo | 2026-05-11 09:50:51


VIEW MORE