Should Remove tune - Hey guys its time for a smog check. I live in southern Ca. Should I change the tune back to Factory or leave it alone? thanks

Raffi · by **Raffi** [OP] » Sep 22 2012, 5:00am

Hey guys its time for a smog check. I live in southern Ca. Should I change the tune back to Factory or leave it alone?

thanks

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country1911 · by **country1911** » Sep 22 2012, 5:05am

I am not an expert, but IME tunes improve your efficiency, which means more complete combustion and hence lower emissions.

Raffi · by **Raffi** [OP] » Oct 04 2012, 5:23am

you were right. I just completed my Smog check and passed without having to change computer tune. I was a bit nervous bit passed. That's awesome. My last GMC I always had problems.

Should Remove tune - Hey guys its time for a smog check. I live in southern Ca. Should I change the tune back to Factory or leave it alone? thanks

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