OK no need to stick anything in the tank after all. It was air locked at the injector and needed bled.

First I checked the filter canister was full, then loosened up #1 and #4 injectors. Spun it over and after a few seconds it started trying to fire, I let it sit a few then tried again and it fired. Once it fired I cut it off and tightened the injectors back up. A little fuel squired out, no big deal though. I drove it far enough to be sure it had full power, and called it done.

So I guess anytime you run out of gas or the filter clogs, this is a possibility.