1.The metal rod over the fuel injectors is the fuel rail. Use the socket and ratchet to remove the bolts and brackets holding the fuel rail in place. Depending on the model, some engines will need the fuel line disconnected from the fuel rail in order to move the rail.
2.Make sure the engine is cold enough to touch. Disconnect the battery.
3.Remove plastic engine covers using appropriate socket. Set covers aside.
4.Use pliers to disconnect the electrical connector on each injector.
5.Lift the fuel rail off of the intake manifold, bringing the injectors with it. This takes a good amount of force, as the injectors are attached to the rail, and the sprayer tips are a snug fit in the intake manifold. Don't use so much force, though, that you deform or bend the fuel rail. Pulling straight up (as the injector is oriented) makes for easier removal.
6.Examine the injector. If you see a small metal clip that looks like a staple, use a small flathead screwdriver to remove or depress the clip. Then, while wearing gloves, grasp the injector and work back and forth while pulling to remove from the fuel rail. The injector and rail will drip, so have shop towels ready.