It is probably mounted in a box over by the air cleaner.
location fuel pump relay 92' merc topaz
4
In the gas tank.
Inside the engine compartment on the passenger side wheel well.
To remove the fuel tank on a 1992 Mercury Topaz, first, ensure the vehicle is safely elevated and supported. Disconnect the negative battery terminal, then relieve the fuel system pressure by removing the fuel pump relay and running the engine until it stalls. Next, disconnect the fuel lines, electrical connectors, and any straps or bolts securing the tank. Finally, carefully lower the tank from its position, taking care to avoid damage to surrounding components.
Check all the fuses, if all are good, check the shut off relay.
4 hot ground ignitor from comp/dist to pump
it will be in the fuel tank.
behide the glove compartment towards the right its a silver relay that's bolted to the dash frame color of the relay may fary though
the fuel pump relay is located on the left shock tower in the engine compartment in a black box 6x4x1 inches. there are other relays inside the same box which is actually called the ccrm or constant contorl relay module, there should be a double connector with 20 to 26 wires in it, hard to miss.
Manual # 23Mpg City # 33Mpg Highway Automatic # 21Mpg City # 26Mpg Highway
Inside the fuel tank.