Failed CO Emissions.
Teching In
Joined: May 2009
Posts: 33
Likes: 0
From: Under the Bonnet SYDNEY Australia
Back when we had to pass emissions tests in MI, I used to run about 3-5 cans of gas line antifreeze in the gas. I had a small pick up that was way over the limit. Got 4 cans of antifreeze, ran the crap out of her, brought it back 15 min later and the got a 0.0 ppm reading. The tech's jaw was on the floor and couldn't figure out what I did.
Yeah...?
Whats Gas Line Antifreeze?(From Australia & don't know the term?)
It's mostly methanol and an old school trick to lean
out the mixture. That workes well for open loop
(like carb'd vehicles) but will get learned out in
time with a closed loop setup.
There may be burn-profile effects as well but what
I've seen, is pretty much just about mixture.
out the mixture. That workes well for open loop
(like carb'd vehicles) but will get learned out in
time with a closed loop setup.
There may be burn-profile effects as well but what
I've seen, is pretty much just about mixture.
Thread Starter
On The Tree
Joined: Jun 2009
Posts: 116
Likes: 0
From: Colorado
Im gonna go try some I have half a tank in my ss how much would you add? Also how long will it take for computer to change mixture with heet in there.
As you can see its NOX im failing so I put in the cooler tstat.
Also I was told E-85 does anyone have any thoughts on that?
As you can see its NOX im failing so I put in the cooler tstat.
Also I was told E-85 does anyone have any thoughts on that?
It's mostly methanol and an old school trick to lean
out the mixture. That workes well for open loop
(like carb'd vehicles) but will get learned out in
time with a closed loop setup.
There may be burn-profile effects as well but what
I've seen, is pretty much just about mixture.
out the mixture. That workes well for open loop
(like carb'd vehicles) but will get learned out in
time with a closed loop setup.
There may be burn-profile effects as well but what
I've seen, is pretty much just about mixture.
I always wondered about the closed loop. Never had to try it on one. So it may learn it and adjust too quickly. But still worth a shot.
When I used to do this, with a half tank, I'd add about 3 cans maybe. Then go run the crap out of it for 10 min after it's warmed up of course, then hit the test station while still hot. Who knows, you might just luck out.
I wouldn't use E85. That's ethanol. The antifreeze is either Isopropil or Methanol.
The reason you can't get 93 here is because you don't need it. The higher altitude requires less octane. It appears to me that your tune is no good. Looks like you are getting to much fuel on both acceleration and deceleration. Seems like you have aftermarket injectors that were not tuned properly. Sending PM.
LS1 Tech Stories
The Best V8 Stories One Small Block at Time
6 Common C5 Corvette Failures and What's Involved In Repairing Them
Pouria Savadkouei
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph
Verdad Gallardo
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked
Pouria Savadkouei
Top 10 Most Powerful Chevy Trucks Ever Made!
Hennessey's New Supercharged Silverado ZR2 Has 700 HP
Verdad Gallardo
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes
Verdad Gallardo
Awesome K5 Blazer Restomod Comes With C7 Corvette Power
Verdad Gallardo
10 Camaros You Should Never Buy
10 LS Engine Myths That Refuse to Die
Verdad Gallardo
https://ls1tech.com/forums/12523688-post55.html
im not too sure if it works in our cars, but worked in my 86 iroc, LTs, no cats and a monster cam. ofcourse thats a carbed car, but we used dry gas, and it passed with flying colors after failing 3x and being red flagged.
