hello just want to start by saying thanks for taking the time to read this. I have had this fd for a few years now and it has always had the power fc. The wiring is shotty but it always worked and I'm waiting to get it tuned and have the tuner look at cleaning the wiring up. I have always had one WIRE that was sus but when I put the engine back in I could see another wire it was tapped to with a clip that chomped it to the other wire it ran and drove fine so I'm assuming I had it right. So I got the car back from the body shop and of course that one wire is loose now go figure i had let the guy borrow mypower fc controller and that's probably when it let go. So heres the thing I think the connector it had let go and went missing and I'm not sure where this guy goes. Thank all help appreciated its clipped on one end to the power fc on what I believe is a green and pink wire?

Heres the bad boy in red where do you go also you might be able to see the loose end only has a bite out if it from the clamp connector thingy..

So you can see the wire its attached to hopefully

So you can see orientation of where the red wire comes out

Another crimp connector that goes grounds out this wire on a unused plug

 

Looks like it needs to be grounded with the one wire on the unused plug

 

Look at the ecu pinout and see what the source wire is for. It will help determine what that tapped wire is for instead of guessing

 

Here's a source for a good picture of the ECU pinouts-
https://www.rx7club.com/3rd-generati.../#&gid=1&pid=1

and you can grab the wiring diagram from foxed.ca

As far as that pink wire goes, looks like it's tapped into pin 1M if I am seeing correct, and it is indicated as green with red stripe in the wiring diagram, but you'll have to confirm. If correct, that's the speed signal output, which goes to the instrument cluster. Have no idea why someone would have needed to do that.

 

Glad I found this thread with all of the FSM information on the Drive.