these two plugs came off the trucks ECU are these two; i'm assuming these are the truck's version of the "B38" plugs mentioned on this site's tutorials?:

i dont suppose anyone knows what wires do what on these plugs, do they?
the plan was to make a pigtail connector out of the other side of the DSM harness to adapt to the truck's wiring to plug into the DSM plugs, but like an idiot, i didnt cut them off the car i got everything off of, and it being a '90, im afraid it might have different plugs than the '94 i found in a local junkyard. worst case scencario, i have a cobbled up '91 harness i could probably salvage the plugs off of if i had to.
also, the trucks ECU seems to have been fed power from the other side of the engine bay via this plug coming off the main wires off the battery, is that correct?:

i usually try to search around on my own some before i just come on and ask, but i havent had much luck finding stuff on this one. Jeremy from hotrodcoffeeshop says he has one in the works, but i havent seen any of it yet.
thanks in advance guys!