To find it, you'll need to consult your 1992 Chevy Cavalier owner's manual. The manual will have a diagram showing the fuse panel layouts and what each fuse protects. Look for a fuse labeled "Fuel Pump," "Electric Fuel Pump," or something similar. If it's not clearly labeled, you may need to use a multimeter to test fuses to find the one that controls the fuel pump circuit.
Without the owner's manual, determining its precise location is difficult and attempting to locate it by guesswork risks damaging other components or creating a safety hazard.