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Passing Emitions Without Cat???

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Old 01-28-2006, 08:38 PM
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Default Passing Emitions Without Cats???

how do you guys out there running no cats pass emitions? just asking cuz i was wanting to get LT's and ORY but i dont want to pay for the cats.

Last edited by marine7891; 01-28-2006 at 08:52 PM.
Old 01-28-2006, 08:41 PM
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Sniffer test or OBD-II test? With alittle tuning you can pass the OBD-II without any emisions equipment.
Old 01-28-2006, 08:49 PM
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and if not, you need to find yourself a friend who does inspections.
Old 01-28-2006, 08:57 PM
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Here in CT we do 2 tests...

1. Visual inspection... aka look under the car for cat (or things that look like cats)
2. OBDII/Sniffer Test... Depending on the year of the car (yours would be OBDII)

If you get O2 sims or have the car tuned (and all the codes deleted) you should pass the OBD test no problim...

BTW I'm a CT emissions tech
Old 01-28-2006, 09:10 PM
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Could always weld in some fake cats.
Old 01-28-2006, 09:49 PM
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well in texas they hook up to your cars on board computer and the car tells the truth i have a guy that tunes my car and can get the codes deleted but im wondering if i do that will my car show that there is no code for o2's or is there a way i can program a false signal. i just want to be able to pass fu*king emisions
Old 01-28-2006, 09:51 PM
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Originally Posted by Lithium
Could always weld in some fake cats.
i even went as far as thinking to make a bypass so i could run cats if i need to and not run them the rest of the time. not sure on the feasabitiy (sp) of it though
Old 01-28-2006, 10:05 PM
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Originally Posted by marine7891
well in texas they hook up to your cars on board computer and the car tells the truth i have a guy that tunes my car and can get the codes deleted but im wondering if i do that will my car show that there is no code for o2's or is there a way i can program a false signal. i just want to be able to pass fu*king emisions

An O2 Simulator will simulate a fully functional Rear O2 sensor..... so thats ONE route...

The other (Deleting the code) will totally ELIMINATE the code that the rear O2 sets off, so it will be fine.... They just look to see if the codes are tripped, which they wont be if they are removed... LOL

The only thing to worry about if you have your codes removed, or an O2 Simulator in place... is a VISUAL inspection....
For THAT, I recommend welding a 'Shell' around a part of your exhaust so it looks like there's a CAT there....

Brian
Old 01-28-2006, 10:25 PM
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Originally Posted by NVR_ENUF
The only thing to worry about if you have your codes removed, or an O2 Simulator in place... is a VISUAL inspection....
For THAT, I recommend welding a 'Shell' around a part of your exhaust so it looks like there's a CAT there....

Brian
well i know that there is now visual inspection at least they dont at the ford delership where i work. but who knows i have a friend that is runing LT's with ORY and im gona wait and see how things work out for him
Old 01-29-2006, 12:22 AM
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Scan only test in IL for '96+. No sniffer, no visual. Passing is just a matter of tuning or O2 sims.
Old 01-29-2006, 12:44 AM
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If your service engine soon light is on for the rear O2 sensor throwing a code, you will not pass. If it simply doesnt have a code to "throw", your SES light won't come on, and they won't fail you. Getting rid of the code with a simulator, or a tune (better), will be the same thign.

It's a crap shoot here in Texas on the visual. If you car isnt outrageously loud, they won't give it a second thought. Always remember this, they WANT to sell you an inspection sticker, if you fail, they make no money

Go when there is nobody there. The inspection stations don't give a rats *** if your car is legal or not, they want their 12 bucks, and don't want to be busted. If they fail you, tell them to **** off, then go somewhere else! You don't get "put in the system" or anything like that (like California).

Eventually you will find Bubba and son's garage that will pass you.
Old 01-29-2006, 02:37 AM
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well I too am a texas person but thankfully I don't have to worry about the emmisions stuff, Being military I live in texas but am a SD resident, therefore I just register the car in SD( NO EMISSIONS HAHA), having a friend hook you up is also very nice
Old 01-29-2006, 07:41 AM
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FWIW, i passed an OBD computer test without any emissions equipment on the car whatsoever. The tech even popped the hood and didnt notice the emissions hookups with blockoff plates. This was at a state facility too not some garage. The car was properly tuned and passed without any issues but it failed the visual for lack of cats so i had to swap a catted y on and bring it back. They also didnt seem bothered by the fact that it passed the computer test and didnt have any cats on it . Like was said above, they do hundreds of cars a day and arent going to single you out. I worried about this constantly before i went in and it was fairly painless when i finally went.
Old 01-29-2006, 07:52 AM
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You can't get someone to hook you up at the Ford dealership you work at. I would make friends with the people who do the inspections. I have friends at a dealership and thats how I get by. Good luck!
Old 01-29-2006, 10:24 AM
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prieciate the help guys so i could just close my cutout and no one will be the wiser
Old 01-29-2006, 02:25 PM
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Yeah closing the cutout is a good idea

I remember reading a post about someone driving their h/c stroker transam into a station on slicks and skinnies and passed with the light bulbs about to rattle out of the cieling
Old 01-29-2006, 02:30 PM
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LMAO... so rad.
Old 01-29-2006, 05:57 PM
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There is definitely a fine balance. Having all codes turned off and welding fake cats on is fine, but if I pulled up there in my car where you dread sitting at a stop light because you nearly pass out from the CO and fumes (and also dread accelerating past 2k rpms b/c of the ridiculous nascar rasp) then they're going to look a little more into it than "oh i see something that looks like cats". That's my whole predicament. Unless I got Forrest Gump doing my inspection, I'm not even gonna come close to passing, even with fake cats and tuned out codes.
Old 01-29-2006, 06:20 PM
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r u running strait headers or r u dumping it cuz my friend is running LT's ORY through a cutout and when he closes the cutout it sounds damn near factory
Old 01-29-2006, 06:29 PM
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carsound cats only cost 119 shipped


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