I'm currently up to my *** in SR wiring.
Here's what I'm doing... I bought a SR with a cut harness and no igniter chip thinking I'd be able to get family in Japan to find them easily... apparently not! So rather than spend $4-500 on a harness I decided to try and make one out of the stock KA24E harness, and the cut part from the SR20DET. I searched everywhere for S13 ESSC wiring diagram, and asked on a few forums. I have the S13 ECCS pinout from nismo.org, and someone sent me a 1 page diagram that originated from JWT a few years ago. It has been a great help, but isn't as complete as the 4 page fold out diagram I have from the FSM for my KA. I also have the ECCS diagram found at
http://sr20det.nismo.org/srtech.htm but this is not correct for my S13 redtop. My guess is that this is for a S14 (called 200SX in Australia?).
So where am I? I'm about 20 hours in, I've got the whole KA engine harness stripped and on a board. I've got the 1/2 SR harness "mostly" spliced in. I've got all the pins removed from the 64 pin ECU connector and labeled. I've got about 40 wires traced, labeled and ready to got back into the ECU connector. I know I need to run 4 wires from the ECU to the igniter chip, and 4 wires from the coils to the igniter chip. That leaves about 8 wires that I'm not sure about! The only one I can remember is a blue/red wire from the 4 pin ACC (and something) plug (next to the knock sensor plug). Does anyone know what this wire is, and where it goes?
Does anyone have the S13 ECCS 4 page fold out wiring diagram that they could fax to me? I don't care if it's in Japanese, my wife is Japanese and is a technical translator!
Also , does anyone know the style of plugs for the igniter chip? Anyone know where else these plugs are used? Anywhere on a KA harness? Anyone have these plugs "spare"?
Thanks...Martin.