use a strong flash light, from the front of car, it is under the fuel rail, in the middle. It's connecting wire is usually next to the valve cover in back. Follow the wire and look for a star screw, E12 size. Disconnect the fuel line to the fuel rail. Remove the fuel rail by gently and evenly lifting it up. But first disconnect the negative battery terminal and all of the intake. Don't over tighten the star screw. you could purchase the sensor and have a good idea what to look for.