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Turbo Gs-r failed emissions with too much nitrogen

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Turbo Gs-r failed emissions with too much nitrogen

Old 08-09-2009, 02:12 PM
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Default Turbo Gs-r failed emissions with too much nitrogen

I failed emissions yesterday my Nox ppm was doubled what was allowed. I'm running a chipped p28 on a turbo b18c1 with a cat. The only thing I could think of could be the tune, it was tuned on the street with a wideband, I don't know what the af we tuned it was at. Any ideas to why there's too much nitrogen coming from my car?
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Old 08-09-2009, 05:39 PM
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get a cleaner tune man nothing else you can do
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Old 08-09-2009, 06:04 PM
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Ok, thank you.
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Old 08-15-2009, 10:54 PM
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I think NOx is when your mixture is too lean i think? but I agree you should get a better tune.
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Old 08-29-2009, 04:56 PM
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find a backwoods shop that will pass you problem solved
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Old 08-29-2009, 11:11 PM
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Egr makes a big difference with Nox. Clean it and vacuum test the valve to make sure the diaphragm is good.
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Old 08-31-2009, 02:15 PM
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Originally Posted by vtech View Post
find a backwoods shop that will pass you problem solved
Ha ha, that's what I did and your right it magically solved my issue.
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