i have a 89 civic dx with a d15b7 y8 head. just wanna know more about this swap. like if it done right and if i am missing any thing. the ecu im using is a 93 accord auto. trying to trade it for a manual. it has a jacked up harness and had nos so i dont know whats for nos and whats not. i have two wires on the main harness under dash cut. who knows why? but i think its for the nos switch. i would just like to know what to do for a swap like this. i have a 91 si i am taking parts from i noticed alot of si parts is used. i have the 91 harness as well as 89. the 89 harness is sent off for repair. hopfully it works and get this car running.

 

This is where you will find all your answers. It helps to search... Look under the D-Series section.

https://honda-tech.com/forums/honda-crx-ef-civic-1988-1991-3/88-91-crx-ef-civic-frequently-asked-questions-faqs-1508680/

From what you are saying... you are started off majorly on the wrong foot. Take the time to read, read, and read some more before you go any further. Also, you didn't ask a real question; you just made a bunch of statments.