turtles_civic

hello im turtle and im new to this whole forum thing but i am trying to drop a 92-00 civic d15 single cam v-tec into a 91 civic dx if anyone can help make the swap go smoothly it would be very much appreciated. i just need to know what type of computer to buy(p28,... etc.) and will that computer plug into where my old computer is? i know i have to buy a new wiring harness, but i dont know if the harness outside the firewall will connect with the ecu. PLEASE HELP!!!!!

thanx
turtle