2004 Nissan Maxima - Emission standard

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2004 Nissan Maxima - Emission standard

Postby lpin9365 » Sat Jan 08, 2022 9:58 am

Are there any CO Emission percentages, at idle and cruise, specified by Nissan for the 2004 Maxima?
Many thanks

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2004 Nissan Altima 2.5 S

Re: 2004 Nissan Maxima - Emission standard

Postby VStar650CL » Sat Jan 08, 2022 4:32 pm

There's no spec from Nissan that I know about, it's just required to meet EPA/CARB standards. To my knowledge that's been 1.2% for all light duty vehicles since (I think) 1981. The EPA driving tests actually go by grams per mile, I think that limit was 15g. EPA and CARB have modified standards for HC and NOx many times since then, but the CO standard hasn't changed for a very long time, I think because it wasn't practical to make cats much more efficient at CO recombination than they already were.

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