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Thread: what does NOx ppm mean?

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  1. 08-03-2008, 09:48 PM #1
    Tech5
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    Depending on how high the NOX was you can take it to a emission tester an let it cool down for about hour or so then retest it , an it might pass! I have done this mannny times out my shop!
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  2. 08-03-2008, 10:30 PM #2
    BrandonR18
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    it passed on the 50/15 test with no problem but it failed on the 25/25 test.the NOx was 1152 and only 773 is allowed...if i seafoam it i would chang the plugs in it as soon as i am do and that takes about an hour or so....
    Brandon
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