Tips for passing emissions...
Ok, so I failed the emissions test about a week ago. I got a new "cat" put in and went to get it inspected again and it still failed. I just leaned out the tune a lot and am going to take the car tomorrow to reinspect it.
I have all the proper emissions passing parts, Cat, EGR pipe, etc. but I was wondering if yall know any tips for helping pass emissions? 1995 miata... The set-up is a Hyrda EMS, Garret GT2860 turbo... and I don't know what else I would post that would be relevant for this? |
probably will help if you told us on what you failed on.
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I remember Scott saying you cant be too lean because it will raise NOx levels. If I was in your shoes, id slip the guy a 50 on top of whatever the inspection costs and have him run his own car.
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step 1: move
step 2: step 3: profit |
don't go too advanced on timing, you'll fail for NOx
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http://www.megamanual.com/ms2/tune.htm#emissions
retard ignition and have the parts of the map where they'll be testing the car set to 14.7 AFR It's a balancing act. |
Originally Posted by johndoe
(Post 289190)
http://www.megamanual.com/ms2/tune.htm#emissions
retard ignition and have the parts of the map where they'll be testing the car set to 14.7 AFR It's a balancing act. Mitch |
Originally Posted by Saml01
(Post 289177)
I remember Scott saying you cant be too lean because it will raise NOx levels. If I was in your shoes, id slip the guy a 50 on top of whatever the inspection costs and have him run his own car.
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Post your emissions pass/fail details.
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Thanks for the help guys.... I just got back from the inspection. It passed!! Thank god...
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so what changes did you make?
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So What did you do to help? And couyld you tells us what you failed on the first time.
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Originally Posted by ak47bravo
(Post 289214)
Dude... you don't even know how many places I tried to do that at. I even offered a 120... no one would do it. I failed the low speed and high speed test.
But you passed anyway so all is well. |
Kurt can help you:
http://forum.miata.net/vb/showthread.php?t=293125 needs more "emissions test fuel conditioner" |
Originally Posted by ak47bravo
(Post 289345)
Thanks for the help guys.... I just got back from the inspection. It passed!! Thank god...
It's so fucking fantastic of you not to share why you failed and what you did to solve your dilemma. Thanks for posting at Mazda-speed.com |
Hey assfarmer, how but helping out the rest of us????????
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Originally Posted by Braineack
(Post 289445)
It's so fucking fantastic of you not to share why you failed and what you did to solve your dilemma. Thanks for posting at Mazda-speed.com
I'm looking at the inspection report sheet and I'll post what I failed. I can't tell exactly what it is... the print on the sheet was cut off on the far left, down the whole page. On the high speed run on the part I failed, the standard PPM was "1123" and I measured "2884". I failed the exact same one on the low speed as well. The standard for the low speed was "1242" and I measured "2582". I passed everything else... the only thing that was changed was, the AFR was leaned out. It was running really rich before. Sorry for the delayed response and lack of information on the failed inspection. |
There is a thread last Aug/Sept covering how to pass emmisions test.
Both on a MS and a Link. https://www.miataturbo.net/forum/showthread.php?t=12408 |
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