Are you still running the MAPECU2?
My 4cyl wire the part that goes onto the plug (the cover) is dry rotten and it broke off. But it has been broke for awhile. I read in the Hyanes that it could be arking down in there on the head.Maybe one of your plug wires is pooched.
Didnt think about that. What do you mean check the battery. Just the connections? Or actually test the battery?the only first hand input i have is when my supercharger belt was loose. i was getting misfires like crazy(randomly) for a couple seconds..id blip the throttle and theyd go away. then it got worse and worse. it turned out that my supercharger belt was loose and since its also running the alternator, my battery and charging system was ****ed. the belt eventually snapped off and my battery died, had no radio, no lights, etc etc. so check your battery, if you have coil packs they may be surging and causing misfires. i almost replaced my coilpacks but ray(glassdoc) said they might just be getting the wrong amount of electricity and causing misfires....
check your battery and the alternator belt. read what misfires you are getting(if its just one coil pack or both)
all of the above...if its weak or the alternator not chargin right, it might be throwing the power output to the coils off...check grounds EVERYWHERE...Didnt think about that. What do you mean check the battery. Just the connections? Or actually test the battery?