That is the article. I forgot who had them now. Looks like it's TCCoA.
I'll have to check that wire. But if it isn't, like Les said, it's gonna be a huge pain sorting through every single wire.
I need a wire that is always live when key on engine running, key on engine off. But especially when the engine is cranking. It needs to be off when the key is out though. The meter goes through a calibration when KOEO. But requires a connection to an accessory that is on while cranking. This is difficult, because most, if not all accessories turn off while cranking.
If the meter turns off while cranking, then it will turn back on and recalibrate to the engine running with vacuum. The meter will calibrate that vacuum as 0 psi. And that will be incorrect.