Megasquirt on its rx7

[Eagle7]

You need to talk to Peter FLorance at PF Tuning in Virginia Beach. He's incredibly knowledgeable, responsive and he gets it done with MS (he did the MS2 and then the MS3 in my car).

Take teh car to him, let him sort it out, and then go get it. I may cost you $1500 or so but all of the electrical issues you have been having will end, and you'll have a reliable car.

I don't know Peter personally, but he's a very familiar and respected presence on the Megasquirt forums. Indeed, very knowlegeable and experienced.