15k mile service - Emissions Specs
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This is a discussion on 15k mile service - Emissions Specs within the General Maintenance, Troubleshooting & Accidents. forums, part of the Tech & Modifying & General Repairs category; All right, I just had my 15k mile service done, and on the sheet I see the following, with the ...

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    15k mile service - Emissions Specs

    All right, I just had my 15k mile service done, and on the sheet I see the following, with the second number being under the first one with no slash (don't know if that means anything):

    Tune-Up Emissions Specs:
    %CO - .02, .01
    PPM-HC - 15, 05
    %CO2 - 14.50, 14.98
    %O2 - .0, .0

    Now, I understand the 1st one is carbon monoxide, the 3rd one is carbon dioxide, and the 4th one is oxygen, and I have no clue what the 2nd one is. In any case, does anyone know what these all mean in regard to emissions? Is it good or bad? Keep in mind that the only cat I've taken out is the uppipe. Danke!
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    Unburned Hydro-carbons, in parts per million

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    Ahhh, ok So when it's bad emissions, what would the numbers look like?
    Armin - ClubWRX Admin/Moderator since 2002
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