How to cheat emmissions 101! It worked!
Thread Starter
Registered User
Joined: Nov 2002
Posts: 91
From: southeast
How to cheat emissions 101! It worked!
Allright guys well incase you haven't heard a buddy of mine with a cc306, LT's, Ported heads, 1.6rr went to get his emmissions done again and agian and after failing the for the third time.
My uncle and his hot rod buddies told us to hook up a compressed air tank and tape it into the exhaust before the cat/sniffer(duh) rig a switch connected to petal, then open up the tank and hope. They said the compressed O2 will change the mixture of expelled exhaust and flush out.
Here is the previous thread!
http://web.camaross.com/forums/showt...genumber=1went this afternoon
Well it worked we routed an a compressor hose from the tank under the carpet and out through a rubber plug under the passenger seat and taped it into the pipe right before the cat!
The test was in Georgia and it was a rolling smog w/sniffer on a 94z the NO2 had the biggest noticable diffrence which went from 1100 down 100 where 750 is passing
and CO went from 1.02 down to .42
Hope this might help some of you fellas. Now grumpygeezer(grumpygreaseape) or whoever can take a peak at redneck technology!
My uncle and his hot rod buddies told us to hook up a compressed air tank and tape it into the exhaust before the cat/sniffer(duh) rig a switch connected to petal, then open up the tank and hope. They said the compressed O2 will change the mixture of expelled exhaust and flush out.
Here is the previous thread!
http://web.camaross.com/forums/showt...genumber=1went this afternoon
Well it worked we routed an a compressor hose from the tank under the carpet and out through a rubber plug under the passenger seat and taped it into the pipe right before the cat!
The test was in Georgia and it was a rolling smog w/sniffer on a 94z the NO2 had the biggest noticable diffrence which went from 1100 down 100 where 750 is passing
and CO went from 1.02 down to .42
Hope this might help some of you fellas. Now grumpygeezer(grumpygreaseape) or whoever can take a peak at redneck technology!
Last edited by 95 Z/28 LT1; Nov 24, 2003 at 06:28 PM.
Thread Starter
Registered User
Joined: Nov 2002
Posts: 91
From: southeast
I dont own a camera but the hardest part was hooking up a trigger to the pedal we gave up on it and decided to open the bottle (an old propane tank) a half of a turn before we got out of the car. Then we had to drill out a 1/2 inch hole for a quick release tip ( you know the end that you use to connect airtools to the line with, it has a collar that you pull down to hook them together) that we welded on to the pipe so it wouldn't be noticable.
Registered User
Joined: Jul 2000
Posts: 460
From: Houston, Texas, USA
I'd thought of this too....
Emissions tests work based on PERCENTAGE of emissions, not QUANTITY....
So, the more air that pumps out of your tail pipe, the better.... This is why a 8.0L engine can still pass with virtually the same numbers as a 2.0L engine. It's not quantity it's ratio/percentage....
So, if you can pump more clean air down the pipe along with the exhaust air, your percentage will go down, every time.
An easier idea might be rigging the AIR pump to run ALL THE TIME maybe via a switch?.... This would require very little modification of the car. Question is, would it be enough air to make a difference....
-Michael
Emissions tests work based on PERCENTAGE of emissions, not QUANTITY....
So, the more air that pumps out of your tail pipe, the better.... This is why a 8.0L engine can still pass with virtually the same numbers as a 2.0L engine. It's not quantity it's ratio/percentage....
So, if you can pump more clean air down the pipe along with the exhaust air, your percentage will go down, every time.
An easier idea might be rigging the AIR pump to run ALL THE TIME maybe via a switch?.... This would require very little modification of the car. Question is, would it be enough air to make a difference....
-Michael
Registered User
Joined: Jun 2003
Posts: 2,626
From: Baylor University - TX
Re: How to cheat emmissions 101! It worked!
Originally posted by chevy5143
Allright guys well incase you haven't heard a buddy of mine with a cc306, LT's, Ported heads, 1.6rr went to get his emmissions done again and agian and after failing the for the third time.
My uncle and his hot rod buddies told us to hook up a compressed air tank and tape it into the exhaust before the cat/sniffer(duh) rig a switch connected to petal, then open up the tank and hope. They said the compressed O2 will change the mixture of expelled exhaust and flush out.
Here is the previous thread!
http://web.camaross.com/forums/showt...genumber=1went this afternoon
Well it worked we routed an a compressor hose from the tank under the carpet and out through a rubber plug under the passenger seat and taped it into the pipe right before the cat!
The test was in Georgia and it was a rolling smog w/sniffer on a 94z the NO2 had the biggest noticable diffrence which went from 1100 down 100 where 750 is passing
and CO went from 1.02 down to .42
Hope this might help some of you fellas. Now grumpygeezer(grumpygreaseape) or whoever can take a peak at redneck technology!
Allright guys well incase you haven't heard a buddy of mine with a cc306, LT's, Ported heads, 1.6rr went to get his emmissions done again and agian and after failing the for the third time.
My uncle and his hot rod buddies told us to hook up a compressed air tank and tape it into the exhaust before the cat/sniffer(duh) rig a switch connected to petal, then open up the tank and hope. They said the compressed O2 will change the mixture of expelled exhaust and flush out.
Here is the previous thread!
http://web.camaross.com/forums/showt...genumber=1went this afternoon
Well it worked we routed an a compressor hose from the tank under the carpet and out through a rubber plug under the passenger seat and taped it into the pipe right before the cat!
The test was in Georgia and it was a rolling smog w/sniffer on a 94z the NO2 had the biggest noticable diffrence which went from 1100 down 100 where 750 is passing
and CO went from 1.02 down to .42
Hope this might help some of you fellas. Now grumpygeezer(grumpygreaseape) or whoever can take a peak at redneck technology!
Thread Starter
Registered User
Joined: Nov 2002
Posts: 91
From: southeast
Re: Re: How to cheat emmissions 101! It worked!
Originally posted by FacelessZ
Great job! ...but for all that trouble you couldn't find someone with the hookup for an inspection sticker?
Great job! ...but for all that trouble you couldn't find someone with the hookup for an inspection sticker?
Registered User
Joined: Nov 2003
Posts: 12
From: Tarpon Springs,Florida
here the trick i did after failing 10 times. tryed timing/vacumhoses/denatured alchol/even put my stock injectors in.. still failed..So i thought about it for a sec..
let me try something stupid.. i un hooked 2 injectors and let it run on 6 cylinders.. guess what passed with flying colors.. after i got the paper in my hand pulled the car out of the bay and hooked up the 2 injectors and laughed my a$$ off.. the next year they stopped doing emission testing in our county..
let me try something stupid.. i un hooked 2 injectors and let it run on 6 cylinders.. guess what passed with flying colors.. after i got the paper in my hand pulled the car out of the bay and hooked up the 2 injectors and laughed my a$$ off.. the next year they stopped doing emission testing in our county..
Registered User
Joined: Sep 2003
Posts: 98
Originally posted by Procharger
here the trick i did after failing 10 times. tryed timing/vacumhoses/denatured alchol/even put my stock injectors in.. still failed..So i thought about it for a sec.. let me try something stupid.. i un hooked 2 injectors and let it run on 6 cylinders.. guess what passed with flying colors.. after i got the paper in my hand pulled the car out of the bay and hooked up the 2 injectors and laughed my a$$ off.. the next year they stopped doing emission testing in our county..
here the trick i did after failing 10 times. tryed timing/vacumhoses/denatured alchol/even put my stock injectors in.. still failed..So i thought about it for a sec..
let me try something stupid.. i un hooked 2 injectors and let it run on 6 cylinders.. guess what passed with flying colors.. after i got the paper in my hand pulled the car out of the bay and hooked up the 2 injectors and laughed my a$$ off.. the next year they stopped doing emission testing in our county..
Super Moderator
Joined: Feb 2000
Posts: 2,026
From: Japan
Originally posted by N2OpwrdTA
This is good info. Maybe you should fix the spelling of emissions in your title so this will come up in a search "titles only search" in the future for other people.
This is good info. Maybe you should fix the spelling of emissions in your title so this will come up in a search "titles only search" in the future for other people.
Done!
Registered User
Joined: Apr 2003
Posts: 892
From: Dallas/Fort Worth
Originally posted by SSlammedlt-4
Im glad we dont have emission tests here in the heart of America. I love running no cats and no egr. it great, not having to worry if I am going to pass the mext test.
L8
Shawn
Im glad we dont have emission tests here in the heart of America. I love running no cats and no egr. it great, not having to worry if I am going to pass the mext test.
L8
Shawn
if i get a cam or headers i'll pull it off, just wasnt enough hp to run without it.