I bought a 96 civic with a swapped in d16y8, and ive been having issues all around but ive been replacing parts all around to help the y8 run better but im not sure if they have the right ecu for the y8. He said he had his buddy "tune" the ecu when they did the swap but the ecu in it right now is a p2n. The y8 stutters at low driving speeds sometimes seems like a misfire as well at the speeds then around 3k-35 vtec hits hard.