I've been trying to figure out the wiring. I thought it might be the fact that my fuel pump isn't hooked up since it's in the same wiring, so I fiddled with that for a while. In the end I figured out how I'm going to have to do my fuel pump wiring, but in using the battery to find the power wire for the pump I ended up spilling fuel all over the garage floor.
At that point I decided I should call it a night. I did manage to get the fuel gauge working though
Also, while I had the wiring rigged up I went ahead and pulled 4 codes from the SGII, will update with what they are soon.
Also also, I tried grounding out everything on ECM plug B directly to see if it was the issue but that didn't do it, so maybe it is the power. The two wires I haven't tracked for the power go out into the engine bay, but I really don't want to hack up that harness, since it's my last uncut one
