1999 Chevy Blazer What else could it be?

Friend called, his Blazer would not start. Had spark, no fuel pressure at rail, no audible noise from pump. Pump bench tested dead, so replaced with fresh pump.

Also, new air filter, cap and rotor, and fuel filter.

We have spark at the coil, and spark on the other side of the cap. I have pressure at the fuel rail, and it should run, you would think.

However, it does not.

Any ideas?