Okay, so here's the rundown. I just recently did a swap in my 96 hatch. I swapped a d16y8 with the y7. The new engine is from a 2000 ex and so is the ecu. I bought a jumper from RYWIRE and it runs fine when on cold but after it is totally warmed up it starts to misfire and run all over the place, also the speedo doesn't work. On top of that, my dash lights are pulsing. Whenever I hit the throttle they pulse bright and dim. IDK whats going on. The car has only basic mods with the exception of a skunk2 stage 1 cam. Someone please help. This newbie has got issues

 

man it sounds like you done f**ked up some major wiring somehow. check the simple stuff.