96 civic hx with d16y8 out of a 2000 civic. Has an ebay header, and cat relocated to underneath cause the hx exhaust manifold cracked. still using y5 harness, dizzy and o2. so check engine codes are p0135 primary o2(can i convert the 7 wire o2 to a 4 wire?). P0325 knock sensor. And also i got misfire in all cylinders. changed the spark plugs to see if that'd help and adjusted the timing, nothin changed. Right now i'm thinking, change out the y8 harness, dizzy and o2. I really dont want to if i dont have to. And also i have the y8 harness, but 5 connectors were cut so i'd have to splice. question for the harness is, since its out of an '00 it would be obd2b right? and i have a p2p out of a '97, dont really want to spend money buyin a jumper. any way it'll work without a jumper? not tryin to spend anymore money. what to do? anyone?