Tell me about emissions testing in CO.

[DENALI]

We are thinking about moving to CO, somewhere around the colorado springs area. What are the emissions testing requirements like? Can i have a deleted egr cooler or a deleted converter? Thanks

[colo_dually]

Very dependent to the county you are moving to, part of the state does testing, and the other doesn't.

If you are going to an emissions county, get ready to bolt everything back in. And run stock programming for the test (or a EGR valve enabled tow file).

What year, and motor is the truck?

[DENALI]

Originally Posted by colo_dually

Very dependent to the county you are moving to, part of the state does testing, and the other doesn't.

If you are going to an emissions county, get ready to bolt everything back in. And run stock programming for the test (or a EGR valve enabled tow file).

What year, and motor is the truck?

currently i am driving a 03 6.0

[colo_dually]

Then, if you move to an emissions area, you are subject to having all that equipment installed and functional.

We've discussed the details over in the CSP chat and truck threads that can provide you more specifics onto what is checked and how often you'll be getting checked.

[Rattlesnake18]

I live in the Springs area and you will need to have your truck tested every year. You do not have to have a muffler, but must have a cat at time of inspection. I always turn my truck back to stock for the test. As for EGR components, that's hit or miss I guess, they have never looked under my hood during the test. I would say that as long as you pass the test, then they won't know anything about the components.

[bigwheelsbigtires]

I passed with very low numbers with an EGR delete by SINISTER... i did install a dumby EGR valve for test day but i dont think they looked... They do check to see if check engine light goes out after startup... my EDGE shuts off the codes that trigger the light.
if you need the shop info for where i went let me know...

[POWERSMOKIN]

So Im moving down to the Springs in early january... Got an OBS with a 5" straight. I know some of these trucks came with a cat, and some didn't. Well mine did, and i took it off. Its (cat) now sitting in CA (im in WY).

My question is, How do they know if your truck came with a cat or not?? Will i have to dummy rig the cat back in (3.5" to 5" adapter lol)? Of course ill run stock tuning (duh) but im sure she'll pass.

Alsoooooo

How stringent are they if you roll coal in town? I romped on it on +60 and went by a cop and looked like he was trying to cut traffic to get to me. Think he saw my Wyoming plates and went on... but im not too sure.

[Rattlesnake18]

Unless your rig has a sticker on it that states it didn't come with a cat, they WILL require you to have one on for inspection. So, yes, you will need to rig up a cat for inspection.

As for rolling coal, I've never known of anyone getting messed with about it, as long as you do run around purposely smoking out ever intersection like an azzhat.

[POWERSMOKIN]

Soooo, even something like this is cool?

5" High Flow Diesel Catalytic Converter from SSDPro-Exhaust

[Rattlesnake18]

Yup, that will work just fine. A buddy had a similar issue with his truck needing to get inspected, so he bought a similar cat, installed it, and passed with no problem. Of course that was with stock tunes on it for inspection like you mentioned earlier. I also know of guys passing emissions with a hot tune on as well, I personally never took the chance and set my truck back to stock for inspections.