I have a prelude from 94 but im pretty sure it will be in a similar area, On the top of your intake manifold "plenium" opposite side of the throttle body "driver side", look down in the side of the manifold plenium. Its a piece of plastic that is screwed in by two phillips head screws; and all's it has is a sensor that plugs in to it from there you can't miss it but I bet you wondered what the hell that was for. hope I helped