How do you test a fuel pump on a 1990 ford tempo to make sure that it is good or bad?

To test the fuel pump on a 1990 Ford Tempo, first check the fuel pump fuse and relay to ensure they are functioning. Then, locate the fuel pump access panel or remove the fuel tank to access the pump directly. Use a multimeter to measure the voltage at the pump connector while turning the ignition to the "on" position; you should see around 12 volts. Additionally, you can listen for the pump's operation sound by turning the ignition to the "on" position and checking for a humming noise, indicating the pump is working.