Okay - got the beast all wired up, but found one bit that's not quite right, and it's driving me nuts...
Everything is accounted for and works fine, except for one circuit. Unfortunately, it's the one that closes the fuel pump and auto shutoff relays.
The circuit leaves pin 50-something (I can look it up), which is the Fuel Pump Relay pin. It feeds the coils on the two aforementioned relays, goes through them, then comes back to pin 9 (Ignition Sense Circuit). The problem is that I only get 2.36V on that circuit when checking to ground. Is that correct? I was thinking that perhaps it should be 12 volts (given the relays), but I need to know for certain... I'm not certain if the voltage is sufficient to pull the relays, and I have tested the fuel pump and injectors, the coil, and everything else that those relays feed (they work). It's just that one circuit that keeps failing to pull the relays (I tested the two relays on the starter socket... they work too).
I really don't want to have to fork out for a new ECM, but it may appear to be what's coming... when I pulled the old fuse block, it was half-melted, so I was worried the the ECM was half dead anyway.
For those who recommend replacing the ECM, I need a favor - know of any good stores that can program/sell them, and ship them within less than a month (my lease is expiring, and I'm sure the landlord wants it gone by then...)