Hi bowtie_man and welcome to TSF:wave:
You'll need a pressure gauge. If you plan to continue to do your own auto repair, you should buy one. Not too expensive, there are almost required to tell you about the fuel problem. You might be able to rent one from an auto parts supplier.
The fuel is pumped from the tank, through a filter, to the engine where the injectors receive it under pressure. It then passes through the fuel regulator and back to the tank. There is a valve on the input line at the engine where you screw on the pressure gauge.
To test the pressure, turn the ignition switch from off to on (not start). The fuel pump will come on for about 2 seconds. Repeat this while watching the gauge. Two or three times should do it. The pressure should pump up to your required pressure and slowly bleed off. I don't know the pressure for your model. Pressures vary widely, so you will have to look it up or maybe someone will post it here. If the pressure is OK, the regulator is not the problem.
Start the engine while watching the gauge. If the pressure drops and the engine dies, the problem will most likely be the pump or filter. If you are lucky, it will be the filter. It is a lot easier to replace than the pump which is inside the tank.
A quick test for fuel problems is to use a can of starter fluid. Pull the inlet duct off where you can spray fuel directly into the intake manifold and spray short bursts into it while the engine is running. If it keeps running on the spray, the problem is in the fuel system.
Hope this helps,