How do you test the fuel pump on a 1990 Chevy Lumina Euro?

To test the fuel pump on a 1990 Chevy Lumina Euro, begin by switching on the ignition, but don't start the engine. Next, locate the fuel pump access panel, which is typically found in the trunk of the car, and remove it using a screwdriver or other suitable tool. Once the panel is removed, you should see the fuel pump. Connect a fuel pressure gauge to the fuel pump, following the instructions provided with the gauge. Once the fuel pressure gauge is connected, turn the key to the "ON" position again, and observe the fuel pressure gauge. If the fuel pressure gauge reads between 40 and 60 psi, the fuel pump is functioning properly. If the fuel pressure gauge reads below 40 psi, the fuel pump may be faulty. If the fuel pressure is higher than 60 psi, the fuel pressure regulator may be faulty.