got the whole mpfi engine harness.

[Crxce]

Im doing the mpfi swap and today i picked up a 91 si engine harness what do i need to do to that harness or what else do i need to do wiring wise to do the swap and do i need the new dizzy? i know i need the new ecu and i think thats all i need correct me if im wrong

[GTA]

you need the si dizzy.

[Crxce]

the harness should be no problem to just switch out?

[GTA]

you actually modify your dx harness to be mpfi. the si harness doesnt just plug right in.

[EF You]

i used a CRX Si harness in my dual point car. two interconnect plugs plug in outta the whole thing. what i did was cut off the body harness from the Si, and took the engine harness too. then using that, and the harness in my car, i made a subharness. basically all i did was match up all the matching colors, and then looked on a buncha different wiring diagrams until i came up with an adequate subharness that connects all the mismatching plugs from the SI harness and the dual point harness. still hadda run a hasport subharness for my b16 though.....but all in all i think that it came out a lot cleaner making a subharness, even though now i do have to unplug 6 interconnect plugs to take my engine out.