Fail emissions :(
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Elder User
Joined: Jan 2007
Posts: 527
Likes: 1
From: Marysville, Wa
Fail emissions :(
Ok I have a 2002 7.3L Excursion 140k. Just moved to WA where diesels have to be emission tested I failed due to the opacity being 52% with a limit of 40%. What can I due to lower the smoke output so I can pass. I have 2 weeks before my tags are expired. I so far have changed the fuel filer, changed the oil, cleaned my air filter and am running injector cleaner thru this tank. I know the truck has had a programmer used on it at some point in time by the previous owner and was not set back to stock before I bought it. I need to know what else I can do to lower the smoke output so I can pass without going to the dealer and having them program the truck back to stock for $108.
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Elder User
Joined: Jan 2007
Posts: 527
Likes: 1
From: Marysville, Wa
Thread Starter
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Elder User
Joined: Jan 2007
Posts: 527
Likes: 1
From: Marysville, Wa
was thinking of trying this stuff:
AMSOIL Diesel Fuel Additive Concentrate
says it will reduce black smoke.
AMSOIL Diesel Fuel Additive Concentrate
says it will reduce black smoke.
Senior User
Joined: Jan 2007
Posts: 355
Likes: 0
From: Wichita, KS
Might try the Amsoil but I wouldn't get your hopes up. My personal opinion is flash the PCM and that would allow you to upgrade to a custom tuner later. It would also be a longterm fix and not something you have to worry about at every emission test.
Postmaster
Joined: Apr 2012
Posts: 2,613
Likes: 8
From: North Georgia
Sorry man...
There is no cheaper option for you if there is a toon stuck on your pcm.
Bite the bullet... get in the 3 week line... and have the dealer flash it...
Or send it in to dp tuner... i think they flash pcm's.
That might be faster... but i think they charge more than 108$... not certain there tho.
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Fleet Mechanic
Joined: Jul 2005
Posts: 1,800
Likes: 52
From: Southern Colorado
A stock '01 puts out about 1-2% opacity - perhaps a max of 5%. I'd get it reflashed to stock, pass the test, and then figure out what to do next.
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Elder User
Joined: Dec 2002
Posts: 797
Likes: 1
From: UT
You might try and find a used PCM at a junkyard or classifieds. Once you pass put your other one back in if you like its tune. Plus the spare PCM would give you the option to run a different chip down the road...
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Elder User
Joined: Jan 2007
Posts: 527
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From: Marysville, Wa
thought of that but excursions have a chipped key so would still require a trip to dealer =/
It's a Van Gogh
Joined: Feb 2010
Posts: 7,802
Likes: 1,333
From: Elk Grove, CA
Haul out your PCM and call DP for a re-flash. Maybe stock tune, maybe something they can suggest to fit your goals. Faster and cheaper then your other options, plus you're dealing with experts.
My two cents.
My two cents.
Fleet Mechanic
Joined: Aug 2010
Posts: 1,456
Likes: 155
From: Sedalia, CO
I think my brutha's are slippin'... 
You might at least check to make sure a couple of key things are working right: Do you have boost leaks? Do you have exhaust leaks before the turbo? I didn't see gauges in your mod list, but I assume you have them. Can you build boost? Are your EGT's high?
Assuming all that stuff is OK, you might consider another option: Buy a chip. That's more than $108, but I didn't see where you're looking for a cheap solution, I saw where you didn't want to drop money putting your truck back to stock. A chip will override whatever is in the PCM, and you'll not only know what tune(s) you have, you'll get to decide.
My $.02.
Mark
You might at least check to make sure a couple of key things are working right: Do you have boost leaks? Do you have exhaust leaks before the turbo? I didn't see gauges in your mod list, but I assume you have them. Can you build boost? Are your EGT's high?Assuming all that stuff is OK, you might consider another option: Buy a chip. That's more than $108, but I didn't see where you're looking for a cheap solution, I saw where you didn't want to drop money putting your truck back to stock. A chip will override whatever is in the PCM, and you'll not only know what tune(s) you have, you'll get to decide.
My $.02.
Mark
Thread Starter
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Elder User
Joined: Jan 2007
Posts: 527
Likes: 1
From: Marysville, Wa
I think my brutha's are slippin'... You might at least check to make sure a couple of key things are working right: Do you have boost leaks? Do you have exhaust leaks before the turbo? I didn't see gauges in your mod list, but I assume you have them. Can you build boost? Are your EGT's high?
Assuming all that stuff is OK, you might consider another option: Buy a chip. That's more than $108, but I didn't see where you're looking for a cheap solution, I saw where you didn't want to drop money putting your truck back to stock. A chip will override whatever is in the PCM, and you'll not only know what tune(s) you have, you'll get to decide.
My $.02.
Mark
You might at least check to make sure a couple of key things are working right: Do you have boost leaks? Do you have exhaust leaks before the turbo? I didn't see gauges in your mod list, but I assume you have them. Can you build boost? Are your EGT's high?Assuming all that stuff is OK, you might consider another option: Buy a chip. That's more than $108, but I didn't see where you're looking for a cheap solution, I saw where you didn't want to drop money putting your truck back to stock. A chip will override whatever is in the PCM, and you'll not only know what tune(s) you have, you'll get to decide.
My $.02.
Mark
Do you have boost leaks? Nop
Do you have exhaust leaks before the turbo? Nop
I didn't see gauges in your mod list, but I assume you have them. You assume Correctly
Can you build boost? Yep
Are your EGT's high? Nop
Im looking for the cheapest fix just to get me thru the test then when I have extra $ ill explore the other options.
Fleet Mechanic
Joined: Aug 2010
Posts: 1,456
Likes: 155
From: Sedalia, CO
Do you have boost leaks? Nop
Do you have exhaust leaks before the turbo? Nop
I didn't see gauges in your mod list, but I assume you have them. You assume Correctly
Can you build boost? Yep
Are your EGT's high? Nop
Im looking for the cheapest fix just to get me thru the test then when I have extra $ ill explore the other options.
Do you have exhaust leaks before the turbo? Nop
I didn't see gauges in your mod list, but I assume you have them. You assume Correctly
Can you build boost? Yep
Are your EGT's high? Nop
Im looking for the cheapest fix just to get me thru the test then when I have extra $ ill explore the other options.
Mark
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