Help finding knock sensor on a 98 Z24........

Hey all,

I just bought a 98 Cavalier Z24. It has the 2.4 liter engine. I keep getting codes about the knock sensor, so I went ahead and bought one. I have been working on cars all my life, so I pretty much know my way around an engine bay.

Now the problem is: There is no knock sensor installed on the engine. I have found the wire for it, but it was just hanging. I can NOT find the boss for the sensor to screw into. I have searched, and can't seem to find the info I am looking for.

I have read that it is located, from under the car, on the bottom right of the engine block. Well, I am stumped.

Can any of you tell me, or better yet, show me where it is supposed to go?

Thanks in advance!

Thomas