A new trial and tribulation.
My 20+ years daily driver had a couple non starts lately. Starter would crank but no start, so I took another car. When I came back later; it started just fine.
So it is one of those I hide from you, and you seek for me game here. I have since added LEDs and brought them out to the dash to monitor fuel pump circuit. That circuit has the starter switch, puter (brain to most folks), relay, fuel pump, fuel filter, injectors. Hope it is not the fuel pump. I hate putting my hands on/in the tank. The puter may be pricy.