Passing Emissions

[nismo24T]

Finally completed KA-T....stock engine, msd BTM, 8:1 FMU, walbro fuel pump, pushing 6-8 psi.....and EMISSIONS is due!

I removed the carbon canister....and the egr is plugged up....BIG QUESTION:

Will I pass emissions? I live in Metro Phoenix, Arizona

If not...what can I do?

[TheOne]

unless you really fine tune the air/fuel ratio(lean it just so it doesn't detonate) depending on how they do the testing there(you better hope no visual testing) most of the time they just put it on the roller @ 1 and 2k rpm on the sniffer, maybe 3 but mostly 2.also what year is this car? usually they just put the sniffer on 95 or earlier, on 96 and up they just check the ecu if it has any codes.(check engine light).here in TX they do just that, put cars 95 and earlier on the sniffer, and 96+up just check for the ecu.

[nismo24T]

well...my car is a 92' 240sx here in Phoenix, AZ they did a visual on my car and the sniffer.

my car hardly detonates

as for the visual wat do they look for?

should i find a place for the carbon canister and pretend its hooked up and the egr?

am i gonna pass emissions without hooking these up.....is there any fuel or any other aditive that i can buy and use to help with emissions?

[S13 Charlie]

I thought AZ was one of those kickass states with no emissions requirements..

Anyway, here in CA (the land of ruthless emissions testing) they do a visual test as well as a sniffer. In the visual, they're looking for everything that is supposed to be equipped on the car from the factory. That is, EGR, AIV, anything and everything that is emissions related. Seeing as you have removed the egr, I think you're going to be SOL, unless you get a guy that doesn't know what he's doing..

good luck, for that reason, I'm going to wait until I smog test to renew my registration before I go for boost.

cheers,

C

[Structure240sx]

see if you can find a shop that is cool and will put a 2002 eclipse on the rollers for you and give you a sticker. not that i know of any shops that do that

[virus77]

Ya alot of shops will pass you even if you fail visual and your car can pass the sniffer, just ask around. Its harder to find a shop that will pass you when you will fail at everything, still possible and usually more costly.

[toki]

yes, you will pass.

[TheOne]

see if you can find a shop that is cool and will put a 2002 eclipse on the rollers for you and give you a sticker. not that i know of any shops that do that

^^should look for somebody like that, thats what my brother used to do to pass his 82 chevy C10 with a 454 big block, he used to put my 95 eclipse on the roller:)(his friend was the 1 doin the inspection), but then again they only do the sniffer on 95 and down.

[nismo24T]

I will pass?

....even without the carbon canister and the tube that goes from the exhaust to the back of intake mani...{egr?}....

I'm goin friday morning....I'm gonna put the carbon canister in....mount it somewhere and pretend its connected....and run a hose soomewhere to pretend the egr is connected....

One more time so I can rest a lil easier....will I pass without these two connected?

[eddiec]

carbon canister will not have much effect on the sniffer. and whats the worst that could happen if you fail? here in tn i have to get sniffed but no visual. after i bought the car it failed 3 times in 2 months before it passed. as long as you make the effort to get it tested you should get another chance to fix it.

[nismo24T]

Damn...well I failed miserably....

Hydrocarbons.... Standard - 1.00 ...... Mine - 1.90Carbon monoxide.... Standard - 12.00 ...... Mine - 12.00

Nox.... Standard - 2.50 ...... Mine - 8.00

Any suggestions?

[hysteria]

now you have me worried and mine's not due until this summer.

i built an exhaust and added a new cat so hopefully i will fair better. you may also if you had a new cat but i don't know.

[TheOne]

yeah get a cat converter, and try to lean the fuel maps a bit(mostly in 1000-2500rpm, i think those are the rpm's where they sniff it), if not, get somebody to put another car on the roller.

[nismo24T]

Here in az, emissions are checked by government service depots....not individual shops....so I just can't get a sticker...and I need to pass emissions to renew tags....

Doesn't the 240 have two catalytic...I remember some guy removing it a long tym ago......

Should I put two cats?

[nismo24T]

Oh...it might have just been a resonator.....

But....

Wut if I put two cats?

[Red-KAT]

I would just go try it out and see if you pass.

[nismo24T]

I would just go try it out and see if you pass.

I did try...results are above....

[nismo24T]

you know wut guys...the cat converter right now is a year and a half old....but...after i turboed the car, the turbo seals were bad and I had a lot of oil going into the intake and smoke coming out (its fixed now).....

could this have destroyed the cat?

[WDRacing]

Wanna pass emissions, unplug one injector cannon plug. That cylinder now becomes nothing but an airpump. Your mixture will lean out by about two full points and you won't detonate. Also, mark your cap where it is, then retard your timing...alot. Simply undo what you've done when you pass.

Let me know how it goes. I may just register my car in FL if you have alot of problems.

[Bronze MFP]

puttt putt putt putt putt

hey if it works, i'll be doing that too

[PapaSmurf2k3]

you dont think they will notice that its basically running on 3 cylinders (extremely roughly)? Besides, this might throw a code, and the O2 sensor would read that the 4 cylinders as a whole are very lean, and would probably tell the computer to richen the hell out of them. maybe it will work for like 5 minutes though. Ive been thinking about this a lot, and I think it is my duty as an engineer to make something with an O2 sensor off every cylinder, that way you know what the hell is going on... everywhere. Whatever the case may be, good luck.

[virus77]

if you cat is a year and a half old its probably that. My honda would need a new cat every year. I would put it on my bros smog machine just for kicks to see if it had gone bad yet. Some cars just eat through cats

[CRyan]

man, i'm glad i live in MS (mississippi). Don't have to mess with all this emissions bull crap. Shoot, i've got one resonator, and thats to try to keep the popping from being to loud!

[nismo24T]

I replaced the cat....connected the egr....the results:

failed!

everything went down....except the NOx level....its still a little high....

mine was .... 5.36 grams/mile .................. accepted level ..... 2.5

[WDRacing]

Did you add alcohol?

[crzycav86]

I replaced the cat....connected the egr....the results:

failed!

everything went down....except the NOx level....its still a little high....

mine was .... 5.36 grams/mile .................. accepted level ..... 2.5

Your combustion chamber is too hot, and the oxygen molecules are bonding to nitrogen rather than aid in the combustion process. To cool down the combustion chamber, you need to retard the timing or add more fuel. The cat does nothing for NOx's. It's all egr and tuning.

Or you could use denatured alcohol. It'll definitely keep things nice and cool.

[WDRacing]

You could run a propane line straight from a tank in the truck to anywhere in the inatke and that will definitly help. Do that and cut your fuel pressure by like 15 lbs, retard the timing...man I wish I had a test station to play around with.

[Red-KAT]

I found my car is running 13btdc and I retarded 2 more on that... So 11btdc when I did emissions.

[AZhitman]

Hey nismo - You're in PHX?

Are you on the local boards?

I wanna see this KAT... Gimme a holler sometime.

Good luck with the emissions test - BTW, for the person who asked, AZ is the 2nd-toughest state in the US for emissions.

[PapaSmurf2k3]

In response to the NOX being high, This is basically what my problem was when my car was being tested, If i ran premium fuel, the HC's would be too high, but if i ran regular, the NOX would be too high, (I got my car tested about 6 times before it passed, this was before turbo). If your combustion chamber is too hot, couldnt you just run a colder plug? Or alcohol like everyone els said (Isnt gas-line anti-freeze just alcohol, although i doubt you could get your hands on it in AZ). Good luck.