Don't randomly throw parts at this car.

Did you jumper the relay, have pump running and try to start the car? If still no start, the relay isn't the problem since it is out of the circuit.

The ECM runs the pump for a few seconds when the key is first turned on to prime the system. If it does not see a tach pulse or cranking signal it shuts off.

The injectors see battery feed through a relay or ignition switch then the ECM grounds each one to fire it, make sure you have power at the injectors.