So. I've been having trouble with the car running going from running fine to running lean for a bit now and it finally got to the point where is was always running lean. Now I can barely get the car to move. After checking and replacing a bunch of sensors and changing a few things around, nothing changed. One day for shits and giggles I popped the cover on my ECU and saw a burned spot and a little black thing melted. Popped the cover on my spare, same issue. I traced it as best as I could and I think it goes to the ECU Relay pin. I think. Either way, I decided to pull the harness and the wiring I did, unwrap and check it all.
I haven't had time to check what I did, but I pilfered through the stock harness last night and it was a nightmare. I noticed it had been messed with some when I got it. It had those lovely blue crimp splice things on it. After unwrapping it, I found 1 section that is a little toasty and brown and down near the ECU plug its a total mess. Ground wire were left exposed, a couple wires were cut and missing (not from me). A bunch of grounds were crimped together then taped up, don't know what that is about.
Basically, I dunno where to start or what to do. Do I attempt to repair this harness, try to find a new one? Maybe I'm just frazzled by the crazy mess of wires and just need moral support lol. I dunno even know if any of it is my actual issue, surely its not good either way. I also need to figure out what to do about the ECUs, are they repairable? Scrap it and toss in a old 350? Barely any wiring needed for that lol. All I know is I miss my S12.