Figured it out. Josh843 hit thr head on the nail. That stinking resistor up by the IC pump was shot. Disconnected it and just did a quick jumper across the connectors, boom 40 psi on the rail.
Wish I would have done that before taking the tonneau cover, bed liner, and box off. Definately could do without the extra couple of scratches I put on her in the process.
But whatever problem solved, no broken Y in the tank, both pumps function, I can drive it. I'm happy.
1999 Lightning Garage Baby
2001 Svt Focus Daily
03-04 Terminator needed to finish collection