I had a similar problem where I would randomly lose spark and no power to injectors. This began shortly after installing a new distributor with new ignition control module that was included with the distributor. I swapped the ICM and would still give me the same problems. I traced a ton of wires and tested all kinds of stuff. The ICM tested fine. The problem still ended up being the ICM. Strangely the metal prongs that interface with the plug for the ICM were not making good contact with the plug even though it was plugged in. I had to bend them slightly in opposite directions from what I remember and now havn't had a problem since. So before even when it was plugged in if it jiggled the wrong way it would cut power to everything. That was incredibly hard for me to figure out. Odds are this isn't your problem but I know how tiring it can be to track down these kind of issues so I figured I would share my story with you. Maybe it will help maybe it wont either way good luck!