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-   -   Emissions? (https://www.performancetrucks.net/forums/tuning-diagnostics-electronics-wiring-161/emissions-493855/)

N/ALS1 Dec 19, 2011 10:56 AM

Emissions?
 
I would like to know when hey tune out the cats and you install a ory do you pass emissions? If not what's one way to run Lts and still pass emissions?

dmelvin Dec 19, 2011 11:52 AM

Depends on where you are, and what kind of inspection they give.

In Missouri we just have a visual inspection where they look to see if you have cats. In this case, I have resonators in the place of stock cats, so mine will pass.

If you have a sniffer test, you will need to get cats, this is where they hook up a machine to the tailpipe and read the chemical composition of the exhaust.

In some places they have a ODBII scan as well as a visual, in this case, all you have to do is tune out your rear O2 sensors, and have something that looks like cats.

N/ALS1 Dec 19, 2011 12:46 PM

Yeah I'm in Baytown and they do the obdII and I'm not sure if they sniff where I go. I don't wanna go ask questions and then I fail. So I'm at a cross rd with it.

Nuclear Endless Dec 19, 2011 01:44 PM

Where I'm at it was just the obdII, I have nothing that look like cats and just a tune to delete the emissions code got me passed

N/ALS1 Dec 19, 2011 02:19 PM

Cool I hope I pass when I do get it done.

N/ALS1 Dec 21, 2011 08:00 AM

Ok lt ordered with egr hook up. I am deleting the sir injection system but keeping the egr.

Suburbazine Dec 21, 2011 08:07 PM

I've passed the sniff test running E85. I don't *have* to pass a sniff test, just did it for grins.

BigHate Dec 22, 2011 11:29 PM

As far as i know here in texas they just connect the state's computer to your ALDL and run their tests, no visual inspection. if you have a good tune and no MIL then you should be good.

Mangled03gmc Dec 22, 2011 11:51 PM

Obd2 here also.. I just passed again.. No cats, lts, sounds like a fukin race car is what I was told.. Eyes burning in the booth, but no engine light.. WIN :jest:

KIFER88 Dec 23, 2011 12:09 AM


Originally Posted by Mangled03gmc (Post 4834535)
Obd2 here also.. I just passed again.. No cats, lts, sounds like a fukin race car is what I was told.. Eyes burning in the booth, but no engine light.. WIN :jest:

that was a priceless experience passing the test like that thats for damn sure :D glad i dont have to do that up here in ne.


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