ive had a f22b jdm engine installed for about a year and havent seemed to get it running consistantly good yet. Do i need the ecu for it or does the h23 one work. Ive installed the knock sensor and replaced almost all the other sensors. And gone through 2 h23 distu. installed h23 cams checked wiring time and time again. I work at a hyundai dealer so i dont have any tech help with honda. thanks for any help. 1993 prelude si org h23 blown due to tubro and bad tuning.