How to cheat emmissions 101! It worked!
Registered User
Joined: Feb 1999
Posts: 540
From: Tuscaloosa
I have a question about unhooking the injectors. If you unhook 2 injectors, shouldn't you disconnect those sparkplugs as well? I mean, if there is still spark going to those cylinders, but no fuel, will that not have a bad effect?
Administrator
Joined: Nov 1998
Posts: 71,094
From: Hell was full so they sent me to NJ
Originally posted by Z28ROC
Way to go man! Glad it worked out for you guys.
Also wondering if rigging the air pump to stay on would help pass smog.
Way to go man! Glad it worked out for you guys.
Also wondering if rigging the air pump to stay on would help pass smog.
Originally posted by 6Speed
If you unhook 2 injectors, shouldn't you disconnect those sparkplugs as well? I mean, if there is still spark going to those cylinders, but no fuel, will that not have a bad effect?
If you unhook 2 injectors, shouldn't you disconnect those sparkplugs as well? I mean, if there is still spark going to those cylinders, but no fuel, will that not have a bad effect?
Registered User
Joined: Jan 2000
Posts: 121
From: Tucson, AZ
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..
Registered User
Joined: Jul 2000
Posts: 1,428
From: Woodstock,Georgia
Re: How to cheat emissions 101! It worked!
Originally posted by chevy5143
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.
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.
Last edited by gb95zconv; Nov 26, 2003 at 11:37 AM.
Registered User
Joined: Jul 2002
Posts: 816
From: San Diego PB
Originally posted by Injuneer
No. The AIR pump adds the air before the O2 sensors. The sensors would see the extra "air" and start adding extra fuel that the engine doesn't need.
If there is only air in the combustion chamber, and no fuel, there will be no combustion. You might generate a trace of ozone from the high voltage discharge of the plug, but that's not an emissions issue.
No. The AIR pump adds the air before the O2 sensors. The sensors would see the extra "air" and start adding extra fuel that the engine doesn't need.
If there is only air in the combustion chamber, and no fuel, there will be no combustion. You might generate a trace of ozone from the high voltage discharge of the plug, but that's not an emissions issue.
Registered User
Joined: Sep 2002
Posts: 1,151
From: Surprise, AZ
Originally posted by Larnach
But what if you ran a switch in your car, and ran the lines to a tapped thread or something just before the cat... therefore always injecting air into the system after the O2's... what kinda volume of air is released from that air pump?
But what if you ran a switch in your car, and ran the lines to a tapped thread or something just before the cat... therefore always injecting air into the system after the O2's... what kinda volume of air is released from that air pump?
Registered User
Joined: Aug 2000
Posts: 4,305
From: North Vancouver, BC
You would have to disconnect atleast one of your oxygen sensors to run in open loop & then disconnect 2 injectors otherwise the others will be running really rich since the o2's will make the computer compensate, disconnect one o2 & you're running open loop.
otherwise the others will be running really rich since the o2's will make the computer compensate, disconnect one o2 & you're running open loop.
Thread Starter
Registered User
Joined: Nov 2002
Posts: 91
From: southeast
We didn't "tape" the hose to the pipe. Like i mentioned before you use a connection piece from an air compressor and tack weld it into the pipe before the cat. Check the post at the beginning of the thread it has a link that will help answer some more questions.
[QUOTE]Originally posted by Geezer powered
how did you tape a hose inside your exhaust pipe? and where did you put the tank. No body saw or heard the tank pumping out fresh o2. not calling bs but just ?'s [/QUOTE
[QUOTE]Originally posted by Geezer powered
how did you tape a hose inside your exhaust pipe? and where did you put the tank. No body saw or heard the tank pumping out fresh o2. not calling bs but just ?'s [/QUOTE