Why does the fuel gauge on your 1987 Mazda B2200 not work?

The fuel gauge on a 1987 Mazda B2200 may not work due to several potential issues, such as a faulty fuel sender unit, which is located in the fuel tank and measures the fuel level. Additionally, wiring problems, such as frayed or broken wires, or a malfunctioning gauge in the dashboard itself could also be the culprit. It's also possible that there is a blown fuse affecting the fuel gauge circuit. Diagnosing the problem typically involves checking these components for faults.