1st coilpack wont fire

[Ajax87]

the first coilpack wont spark and it gets really hot with the key in the on position as does the ignitor chip. I know the coilpack is good. It seems to be the fault of the red and green wire coming from the ignitor to the coilpack. It only measures 3 volts. All the other wires are at 12.

[Hijacker]

It could be a short somewhere in the system then. Check for rubbed portions of the wiring harness between the ignitor and the coil packs, and the ignitor and the ECU. A lot of times, the harness can get rubbed raw when it's passed through the firewall.

[Ajax87]

i read ameobassasins frsport addition and it said that he had to hook up the small blue/red wire to the twelve volt source, im thinking this is my problem as that wire is not hooked up right now. He said it was the ignitor power. Does that apply for s13 to s13

[Hijacker]

That's the shared 12v source for the coilpacks. The power source for the coils goes:

battery -> coil packs -> ignitor -> ECU -> ground

They should all be under a constant 12v, and then have seperate ground outs to the ECU through the ignitor. If you are experience a drop in voltage at one but the others are staying hot at 12, your issue sounds more like a problem in line of the circuit for that coil pack.

[Ajax87]

he made it sound like the ignitor has a 12v power source that hooks to the same junction as the 12v for the coilpacks up by the fusebox. Theres two blue/red wires, one is thick and the other is thin. I believe the thick one is the shared constant for the coilpacks. Originally the thin blue wire was unconnected and tucked away. I hooked them both up this time and only got spark in one cylinder. Also after i did this the ecu sparked when it touched metal inside the car. That cant be good.

[Hijacker]

Also after i did this the ecu sparked when it touched metal inside the car. That cant be good.

I think you found the root of your problem.

Can you tell me where this Blue/red wire was? The only one I know of is the 12v supply to the coil packs, and most swaps tend to tap it directly off the ECU power circuit (Black/red) at the harness plug next to the battery. Another thing that would help is if you could tell me where this rogue blue/red wire ends at the ECU plug (if it goes to the ECU that is). I'm going through my S13 SR wiring documents and I can't find a blue/red that ends at the ECU. I just wonder where this other blue/red you mention goes.

[Ajax87]

Issue #3: Too many wires coming together at splicing of Black/Red and Blue/Red
Finally, again below figure 5 they mention to connect the blue/red and black/red on the SR harness to the black/red wire on the KA plug pigtail. My harness had two blue/red wires. I looked up the ECU pinouts and one of them was coilpack power, and the other was ignitor power. Logically all these need +12V switched, which is what the black/red on the chassis harness provides, however connecting the extra blue/red would make this a four wire junction, not a 3 wire junction as indicated by the writeup.

Solution to Issue #3
Going against the writeup, I hooked up both of the two SR engine harness blue/reds to the SR engine harness black/red, and then all three of these to the KA chassis plug pigtail black/red. This gave me a four-wire junction, wheras the article implies a three-wire junction. Do not be worried, this is how it should be.

Thats from the continuation of frsport. Theres 2 plugs next to the first injector, thats where the rogue red blue ends. I dont know what ameobassassin is talking about. After my ecu sparked i unhooked that rogue wire, i should have traced it down before i took his word for it. At that junction i have a thick blue red and the black red wires. Is there supposed to be another wire at that junction

[PyR0NiAk]

I hooked all 4 on mine and it worked fine for me. I recommend contacting Yury or OM3GA from wiring specialties and ask how they do their harnesses for that portion.