If you have power to the fuel pump and it will not run it is defective. If it runs but a fuel pressure test verifies that the fuel pressure is low and you replaced the fuel filter then the pump is defective.
A faulty fuel pump or faulty wiring to the fuel pump. Be sure to replace the fuel filter also.
Faulty fuel pump. Faulty fuel pump relay. Faulty fuel pressure regulator. Clogged fuel filter, pickup, or line. No fuel in the fuel tank.
Blown fuse. Bad fuel pump relay. Faulty new fuel pump. Faulty wiring. Loose/rusty ground connection. Faulty fuel pressure regulator.
You may have a leaky fuel injector or a faulty check valve in the fuel pump. I vote for the faulty fuel pump.
There are many different reasons for that... It can be faulty fuel pump. It can be low pressure in the fuel line. It can be faulty fuel pump relay and etc.
the fuel pump tank wiring is faulty at the pump
Faulty fuel pump. Incorrect fuel pump pressure. Dirty fuel filter. Faulty engine coolant temp sensor.
Plugged filter, or faulty fuel pump.
Faulty fuel pump.Dirty/plugged fuel filter. Blown fuse. Faulty fuel pump relay. Faulty wire harness/connections. Empty fuel tank (faulty gauge).
Probably a faulty fuel pump.
Stuck/faulty fuel pump relay or possibly a faulty ECM.
Blown fuel pump fuse, faulty fuel pump, or clogged fuel filter.