How do I know if the fuel pump on my 1992 bronco is out ?

Have a look here

https://www.google.com/search?q=1992+ford+bronco+fuel+pump+wiring+diagram

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the pump is in the tank and turn the key off when working on it,the filter is what you took apart already,buy a new one and you will know what it looks like Bronco Fuel Pump

fuel pump? I would highly recommend replacing the strainer, filter, and possibly fuel lines at the same time. these can get plugged up with fuel varnish/other junk, and cause power loss and also cause the new fuel pump to fail quickly. Fuel pump manufacturers also will not honor the pumps warranty unless these other parts are replaced at the time of installation of the new fuel pump.

Look at your registration, note "model year" If you ar still unsure, call a Ford dealer and ask them to look up your vin #. They will know for sure.

Are you getting battery power and ground at the fuel pump connector? (This should have been checked BEFORE replacing the pump)

Other things to check:
1. Fuel Pump relay in the Engine Compartment Fuse Block
2. The relay is powered (Secondary -or- "fuel pump side") by Fuse 0 in the Engine Compartment Fuse Block.
3. The relay Primary -or- "control" side is powered by Pin 37 RED wire at the PCM
4. The relay Primary control (or ground circuit) is operated by Pin 22 LIGHT BLUE/ORANGE wire at the PCM
5. The Inertia Fuel Shut-off Switch located between the fuel pump relay and the fuel pump may need to be reset. The switch is located behind the right kick panel. The DARK GREEN/YELLOW wire at the switch is the feed from the fuel pump relay. The other wire goes to the fuel pump. Some units have the DARK GREEN/YELLOW wire going in and the wire going out can also be DARK GREEN/YELLOW, or PINK, or ORANGE - the wiring diagram for your vehicle does not specify the color of the wire that actually goes to the fuel pump itself.)
6. If none of the above produce any results, make sure that your ground wire at the fuel pump has good continuity to ground. It usually screws to the left frame rail near the fuel tank.

Any of these components (including the PCM) or their connecting wires could be the cause of your problem.

Im assuming the fuel pump is working and inertia switch, fuel filter, and fuel pump relay are good, check the ignition switch, if its worn/broke and not making good enough contact.

have you checked your mafs that sounds like it the problem clean it witha mafs cleaner

did you change the fuel filter also????, check the entire fuel lines for kinks/binds, rewire the inertia switch to operate correctly (safety Item)....borrow or buy a fuel pressure tester and check for pressure (32-40 psi), also for VOLUME of fuel....GL

You might need a set of fuel line disconnect tools, but you can buy them at a part store for ten bucks. Other than that, just basic hand tools.

I want to say its located on the drivers side frame. Best thing to do is buy a Chilton's or Haynes manual for your Bronco.It has tons of info on how to do stuff to your Bronco. Might be your fuel pump. That's located in the fuel tank.