I have a 1998 honda civic ex and had a d16y8. That motor was replaced with a d16y7 out of a 2000 honda civic. It has full exhuast, skunk2 d16y8 intake and a 76mm throttle body also skunk2. I replaced the iacv and converted it from 3 wire to 2 wire. It starts perfect but won't idle. It idles at 300 and goes up and down and almost dies and will die sometimes. Just sitting in driveway with no electrical load. I also replaced the stock y8 ecu with a y7 but I still have y8. So why won't it idle? I have no idea.
Read more: Honda civic won't idle Help?
