And as soon as it ran again, it died.
I adjusted the noisy rocker, same one was loose. Started it and ran in the garage for 10-ish mins and all was good. Went for a ride and it died outside my neighborhood. Spent some time yesterday troubleshooting only to find that the Megasquirt seems to have been fried.
What I think happened is I forgot to tighten the + battery cable. It arced and fried the MS somehow. I can't prove it but that's what I think happened. When the car died, all power shut off. Wiggled the cable and everything came back on.
Unsure what my next move is now. Need to get to the end of the month and get a few things behind me and see what funding looks like.