ok so im doing a na to turbo swap on my 86 fc, i have an 87 engine and trans it came with an "uncut" harness but when it arrived i noticed one part of the harness was hacked off. So last week i called the mazda dealership and they said yea we can order that for you, but my friend who works at honda tells me he can get a discount so today he calls the same dealership and the guy says "oh those are discontinued." Not convinced we call another mazda dealership and they tell me that there is 8 possibilities of engine wiring harnesses for an 87 turbo, and they need the number off of the harness, im looking at the harness and i dont see any number. The guy at mazda didnt sound like he knew what he was talking about so im turning to you guys for help......Oh and also i looked at an faq on fc-s that ive had for awhile and they have ecu codes N326,N332, and N333 for the only ecu codes for S4 ecu's. My ecu code is N340. So im a little thrown off by it. Come on guys i have more faith in your advice than the mazda parts associates i need your help.

 

Go to the SEARCH on the top of the page and type in N340. Then view the hits. I got over twenty if I remember right.

https://www.rx7club.com/forum/showth...u+part+numbers