Well, the PCM has transistors that directly drive the coils in the coil pack. warmonger dug into that when he was trying to get his eManage running, so maybe you can PM him for details on those circuits.
Basically, as long as the coil pack is getting the power it is supposed to, the "switch" for firing the plugs is inside the PCM.
It would surprise me if both computers were bad, but they might both be getting bad information somehow.
