Ok, here is what you need to do, since you have a new fuel pump and the vehicle does run when you spray carbuertor clean in it. It is time to check and see if the injectors are getting a signal to fire. You can use a test light, but a noid lamp works best. It is a special test light that plugs into the fuel injector harness connector and indicates if the vehicle's processor is telling it to fire the injector.

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If the light flashes rapidly while cranking, then the injectors are getting a signal to fire the injector. If the injectors are firing and you have a good blue spark,which you should since the vehicle starts when sprayed, then the injectors may be plugged up. Sounds more like the injectors are not getting a signal to fire/pulse on and off.

If it is not getting a pulse signal, the injectors wont fire and the truck wont run. Further diagnosis, of the injector circuit will be required. Check this first and if I can be of more help let me know.