Rich running engine

[Domrob]

Hey guys, I recently installed a k&n cai, and ever since then I have had a running rich engine. I’ve tried the jammer CAI tune and it still runs rich. I took it to the shop and they said to take off the cold air intake. I was wondering if there was a way to tune it, and if anyone else has had this issue. Thank you

[mikel]

well, I've gotta ask, what makes you believe its running rich?
It will always use O2 feedback at idle/part throttle to get to 14.4:1 or so, and if it couldn't trim enough to get there, you would indeed get rich codes.
Also, what vehicle is it?