well great! i failed emisions twice with my mccoy motor

E

E-Rue

New member
went tonight to try and get a new sticker. failed the first time. switched to a T2 timing program on the ultimate, and lowered the fuel pressure a little. it was a lot better the second time, but not quite enough to pass. i guess im gonna try lowering the fuel pressure even more tomorrow, and i might try running it with the MSD6a. got one of those sittin in the garage. right now ive got my fuel pressure set at 39lbs and im running 50lb injectors with ported l35 heads and a 430 lift cam, air to air, etc.... truck is running really well, and the o2mv's stay in the high 800's low 900's on datamaster with zero deg knock at 14.5 lbs of boost. i guess if all else fails i can go get some of that emisions crap from pepboys. hahaha. i would just rather not use it if i dont have to. probably lowers the octane alot. im open to suggestions.

e
 
Daron

Daron

Active member
Get the truck nice and warm. Run 87 octane gas. Pull over about 100 yards from the emissions place and set your FP for 25 psi. Putt putt to the emissions place, with the truck in a "T1" setting and go thru the test. After testing, pull out of the test building and reset your FP... They look at you funny, but who cares.
 
E

E-Rue

New member
Is this McCoys' fault!!??? Does he guarantee performance and emmissions??

John
Click to expand...

hahahahaha. are you retarted? its my fault if i cant get it to pass emisions, not mccoys. only thing he did was make me faster. dont misunderstand, the only reason i mentioned it was a mccoy motor was to clue u in it wasnt stock. im very happy with my motor. i have nothing bad to say about those guys at all.

thanks for the pointers daron, i was just afraid to run it really lean like that. i guess since there is no load on the engine it doesnt matter though. ill give it a try tomorrow, and see what happens. im almost on E anyway, so i might as well try a few gallons of 87 too.

e

<font size=-1>[ This Message was edited by: E-RUE on 2002-03-14 21:17 ]</font>
 
S

SY1983

New member
Run it down to a 1/8th of a tank 93 . Go to auto zone and buy 10 botles of gas antifreeze drop in the tank . There like 1.00 abottle . Drive hard on the way down there. And if you have to wait in line keep your motor reved up so the cat will stay hot.Works every time
 
Windedv6

Windedv6

Ty n 10s
E

I was just being sarcasic...I am glad you like your McCoy build. They are in the middle of my build as we speak. Which build did you go with?

When I lived in Chicago I turned the fpr down and put some cardboard in front of the radiator (just partial) to raise the temps. Worked every time. Had most of the bolt-on mods at the time.

John
 
S

smeagol

Active member
E which version of chip program are you running?

Gotta make sure you are on a closed loop program. I just passed a stock motor Syclone thru emissions here with 50s (and lots o bolt ons). Didn't need to do any tricks really. Bw brought the truck in, nice and warm, running a 160 deg thermostat, 93 octane, fans off for most of the warm up drive to get it nice and warm.
 
bdubb

bdubb

I am teh kingpin!
thats right. about 20 degrees outside. i put a 93/89 mix in it.

truck has no emissions crap on it, but a high flow cat
160 thermo
3" dp and exhaust
te-45
50# injectors
air to air IC
and so on

Hydrocarbons limit was 220, we got like 42 or somthing.
 
E

E-Rue

New member
im running the "heads and cam 50 lb chip" on the T2-22 setting, which i believe is the basic open loop program on that chip. T2-22 doesnt really mean what it says right? its funny i started running the 50's with 50lb's of fuel pressure, and now im all tha way down to 38lbs. i didnt realize the o2's would read 900's, no matter how rich i was running, i guess i can probably go even leaner, since i ran datamaster yesterday after i left there and still had 900's and no knock. the guys up at jiffy lube were really cool, and said i could bring it back and they would set it up in real time and i could adjust on it till it read within the limits, and then they would run the test. on the second try i really wasnt that far off, so im hoping i can pass easily tomorrow with a little less fuel pressure and some 87octane. if not i guess ill try changing the oil, and adjusting the turn on temp on the electric fan thermostat. hmmmmm......

BTW: Windedv6, its a mccoys performer plus

e
 
G

GM TURBO

Sell Out
The one thing to really be aware of is how hot the truck is. Get the cat nice and hot. That is the crappy thing about getting emissions tested here in the winter. I drove my truck for prolly an hour before I got mine done - and passed no problem. First time - I drove for about 15 minutes and failed.
 
S

smeagol

Active member
When did you get that chip done Erue?

We have to make sure to get you the latest updated program.

Most of the programs are fairly rich at WOT, since most guys running those programs are using big Garret turbos, headers, IC mods... so accounting for people running those motors w/o such bolt ons is difficult, and I'd rather err on the rich/safe side :wink:
 
E

E-Rue

New member
um..... i guess its a slightly modified version of your chip that one of john's friends is using. i think it started of as a "50lb heads and cam chip" , but to be honest i have no idea what was changed. he was running it on a similar build with success, so i tried it, and it seems really good. the open loop program runs really smooth. off idle response is better than the V6 stock injector program i was running. i was running a little slugish/rich at about 1,500rpm before i went to the "heads and cam chip".

i have a performer plus motor with a KB air to air, KB cold air, ATR headers and ATR cat back. i also have a PTE 52 with the 3" down pipe and cat that i hope to be installing next weekend. (its susposedly in the mail)this sounds similar to what your recommending for this chip. if not let me know, and ill be glad to try something else on your suggestion. if you have a newer updated program you think will work better id love to try it. i also have the latest 50lb program for the stock motors, but it seems a little rich down low as well. im assuming its the difference in cam profile that does that, but i dont know.

e
 
E

E-Rue

New member
ok.....
here is the update.
i did everything you guys suggested, and my hc's went WAY down. just above half of whats allowed. unfortunately, my co's went up a little. so now instead of barely failing, i was failing nicely. the inspection guys were really cool, and let me adjust it in their garage,but i just couldnt get the co's down where they are susposed to be. im kinda confused, cause the truck seems to be running better than it ever has before. it idles and runs incredibly smooth. has no knock retard, and is a blast to drive. the only thing i can think of, is mabe the cat isnt working properly or something. i guess my next idea, is to try and find someone willing to just sell me a sticker :smile: anyone know what causes high co numbers? ive got the hc numbers way down now.

e

<font size=-1>[ This Message was edited by: E-RUE on 2002-03-19 20:33 ]</font>
 
E

E-Rue

New member
well i did a little research last night, and didnt come up with much. i didnt find much info on what would cause high carbon monoxide numbers. i did however find some info on how a cataletic converter works. if i understand it correctly, it simply converts co (carbon monoxide) into co2 (carbon dioxide) and water. guess that would explain some of the condensation in everyones tail pipes their always asking about. as good as my truck is running, the only thing i can think of is mabe the cat has stoped working. let me know what you guys think.

e

<font size=-1>[ This Message was edited by: E-RUE on 2002-03-20 08:48 ]</font>
 
S

smeagol

Active member
For your latest tests..
What gas did you run?
What was your coolant temp?
You have electric fans, correct? What kind of controls?

Did you use any gas additives?
What spark plugs are you running?

I assume they only did the idle/sniffer test, not dyno..?
 
E

E-Rue

New member
i ran 87 octane.
28psi fuelpressure
i didnt try any additives.
CR42TS plugs with only a few hundred miles on them.
i drove around boosting everychance i got till the engine started sputtering (out of gas)
then i put in five gallons of 87, turned down the FP and rolled into the jiffy lube.

my cooling fan is a black magic keeps the temps right at 160 with the 160 thermostat.
i probably should have tried adjusting the thermostat on the fan, but its a pain in the ass to get just right, so i just put a piece of card board in front of the radiator. it didnt work though cause the coolant gauge stayed right on 160 the whole time.
will engine temperature affect the co numbers? i was under the impression that running lean would do the same thing as having a hot engine. mabe not. i probably should have just adjusted the thermostat on the fan.
we dont have dyno's here, so they do testing at idle and at 2500 rpm with no engine load.

<font size=-1>[ This Message was edited by: E-RUE on 2002-03-20 11:10 ]</font>
 
ParTyBoy

ParTyBoy

New member
When was your last oil change... If you haven't done one in awhile.. do it.. seriously... both times I went in for my smog test I ran 92.. with only a 1/4 of a tank.. changed the oil before the check... low hydrocarbons...Never had a problem Anchorage has the same CARB standards as California due to the amount of vehicles being driven in the winter..
 
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