i have a 1988 crxsi rollover...i also have a 1991 civic dx with a 98 d16y7 and a 95 civic ex head on it.
can i take all of the underhood engine wiring and the dash harness out of the crx si and put in my 91 civic? has anyone ever done this? i don't want to do the dpfi-mpfi swap...i want the factory clean look. not the redneck snip hack and cut look.

 

Thats a ton of work man, just do the mpfi swap, its easy. You can also make it look as good as stock, or I can... check my signature.
Ryan

 

Yup, you can swap all the harnesses, and that will work, but just like Ryan says, it's a bunch of work.
Personally I would have done the MPFI conversion, just do it the right way.

If 12 year old kids in malaysia can make a nice honda harness, so can you.