I have a 90 civic dx with manual windows with a b18 swap. The whole under dash harness is all messed up. Ghetto rigged with integra harness and has a Da cluster. I wanna do it right.

Found a 89 civic ef 4 door shell wondering if the whole cabin harness from cluster,fusebox,ecu, all the way to fuel sending unit will swap with no problems. since its an 88-89

 

honestly it's going to be a pain if it is an lx sedan. you're losing seat belt sensors for the door on the 90, and are gaining wiring for power mirrors, locks, and windows. also you'll have to de pin/re pin the harness plugs that bolt up to the rear body harness.

 

found out my car was an 89. anyone know if 88-89 hatch/crx ones will work?

 

sedan doesnt mix with hatches or crx but crx and hatches = same ****

 

I see. Thanks for the reply.
Im guessing sedan and wagon dont interchange too.
But thats fine