check engine light
I just installed a set of LT headers and y-pipe, no cats and still getting around to the ovc wires as well as a small oil leak (I think when I installed the cap and rotor to the opti I might have forgotten the o-ring or seal).
I also felt a vibration as I came to a stop, it lasted a moment then stopped as I stood at a light or stop sign.
Not sure if anyone has any ideas, I wont be able to scan it till tmw night. I checked the wires though, they looked ok. Only ideas I have are opti or o2 sensors. Any help would be appreciated.

