Emissions testing

Post here with any questions regarding the use of the i2 on supported Chevrolet, GMC, Cadillac, Buick, and Pontiac applications.

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Emissions testing

Post by [email protected] »

I just downloaded an 87 octane and AFM/DOD delete to my 2015 GMC Sierra. 5.3. I have an emissions test’s required yearly coming up soon. Will it pass with the tune or do I need to go back to the stock tune?
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mikel
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Re: Emissions testing

Post by mikel »

it should pass fine with the tune. either way, don't mess with it for a while before the test or the monitors will not be set.
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