truck failed emissions help
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Joined: Feb 2010
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well im thinking of doing the leaning of the carb thing because i just need it to pass so i can renew my tags, cause at the end of this month or start of the next month i will be installing a 514 and i'm almost sure it wont pass emissions with that b**tard in the truck, and i don't want to rebuild the carb cause that seems like a waste of money cause that can go toward more stuff for the truck build. so im thinking im a try leaning it out, changing the oil, maybe spark plugs and see what happens. but what do yall think about that? hopefully that works
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Then Governor Bill Ritter jacks up vehicle registration to increase incoming money then gets the bright idea to return emission testing, citing bogus environmental tests showing increased pollutants in the atmosphere in Weld and Larimer County. After the new "law" was passed many reports showed the pollutants have gone down, regardless of the lack of emission testing.
What that meant was emissions was going to encompass ALL of Larimer and ALL of Weld, which wasn't the case before. So many towns/cities moved to sue the State of Colorado, including Greeley, Fort Collins, Windsor and Severance. Not much has been said other than the newest officials that were voted into office have expressed a desire to once again eliminate emission testing.
Totally bogus, and as was mentioned the HC limits are now 400, which I believe used to be around 1000 for vehicles made before 1982.
Josh
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That's somewhat the problem, we (Northern Colorado) had emissions testing in certain areas, but they (polititians) eliminated it for Weld and Larimer Counties. Where I currently live (since 2004) has NEVER ever had emissions testing.
Then Governor Bill Ritter jacks up vehicle registration to increase incoming money then gets the bright idea to return emission testing, citing bogus environmental tests showing increased pollutants in the atmosphere in Weld and Larimer County. After the new "law" was passed many reports showed the pollutants have gone down, regardless of the lack of emission testing.
What that meant was emissions was going to encompass ALL of Larimer and ALL of Weld, which wasn't the case before. So many towns/cities moved to sue the State of Colorado, including Greeley, Fort Collins, Windsor and Severance. Not much has been said other than the newest officials that were voted into office have expressed a desire to once again eliminate emission testing.
Totally bogus, and as was mentioned the HC limits are now 400, which I believe used to be around 1000 for vehicles made before 1982.
Josh
Then Governor Bill Ritter jacks up vehicle registration to increase incoming money then gets the bright idea to return emission testing, citing bogus environmental tests showing increased pollutants in the atmosphere in Weld and Larimer County. After the new "law" was passed many reports showed the pollutants have gone down, regardless of the lack of emission testing.
What that meant was emissions was going to encompass ALL of Larimer and ALL of Weld, which wasn't the case before. So many towns/cities moved to sue the State of Colorado, including Greeley, Fort Collins, Windsor and Severance. Not much has been said other than the newest officials that were voted into office have expressed a desire to once again eliminate emission testing.
Totally bogus, and as was mentioned the HC limits are now 400, which I believe used to be around 1000 for vehicles made before 1982.
Josh
But, since the truck was not built for California emissions, even in Milwaukee county it doesn't have to be tested. If they ever change that, then I'll drive it without plates, and let the cops ticket me each time they catch me. Honestly though, they may not catch me every time they see me... It is 4x4, after all.
MSEE
Joined: Apr 2004
Posts: 10,386
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From: Austin, TX
Texas is nice in that the cutoff is rolling; each year another year of trucks are exempt. Some states have a solid cutoff; no matter how old the truck gets; if it's past a certain year, it has to be tested (if the county requires it).
New User
Joined: Mar 2012
Posts: 17
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From: Phoenix, AZ
Arizona cutoff is 1966, and not rolling. They want these off the road. I can't find anyone to deal with my old fords because new tech kids are stumped if they can't plug it in. Sorry..... Had to rant. (hehe... just saw the date on the thread. Guess I'm still "Living in the Past")
More Turbo
Joined: Feb 2018
Posts: 710
Likes: 3
From: Oregon
How would retarding the timing make less emissions? Wouldnt that mean the fuel burns less completely? I would think it would really start to stink
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depends on what is making the engine fail... retarding the ignition lowers Nox, advancing the ignition lowers HC, lean mixture lowers HC and CO but raises Nox
Tuned
Joined: Sep 2010
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Melbatoast is right, get the cats glowing, drive around in second gear at higher RPM to where the exhaust is super hot, leave it running until it goes on the rollers, it sounds like you need more than that, lean the carb and back down the timing as well, good luck.
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