* Fuel pump relay: This is an electrical switch that controls the power to the fuel pump. It's a small electronic component.
* Fuel strainer/filter: This is a mechanical filter that removes debris and contaminants from the fuel before it reaches the fuel pump and injectors. It's a small metal mesh or filter element.
They are both parts of the fuel system, but they have entirely different functions. A faulty relay prevents the pump from running; a clogged strainer restricts fuel flow.
