That time of year rolled around again recently so I thought it high time to dust off the ol' cat and stock chip and take the buick to get its emissions testing out of the way.
Long story short, I lowered fuel pressure to about 38, put in my cat, filled her up with a fresh tank of premium octane, and we were off, didnt dawn on me til I was next in line that my stock chip was sitting at home....oops.
Passed with flying colors, not even past the halfway mark on anything tested. So, turns out the "pass emissions juice" I had poured in my tank for the past 5 years, as well as the stock chip I just purchased, were a waste of money. I have one clean burning buick, or a hell of a cat it appears.
Long story short, I lowered fuel pressure to about 38, put in my cat, filled her up with a fresh tank of premium octane, and we were off, didnt dawn on me til I was next in line that my stock chip was sitting at home....oops.
Passed with flying colors, not even past the halfway mark on anything tested. So, turns out the "pass emissions juice" I had poured in my tank for the past 5 years, as well as the stock chip I just purchased, were a waste of money. I have one clean burning buick, or a hell of a cat it appears.