Isx wont start

[Toddmsc]

Tried a pressure sensor off my other running truck. No go.

Put shop air on each individual feed tube and kept return open..no leaks there.

Cranked with return line off head no fuel leaking out. Which tells me injectors arent leaking into return side. If they leaked that much in cylinders I would assume it would start to hydro lock and doesnt. Checked orings for fuel seepage into head..nothing there either.