what is the knock sensor connected to the block and ...?

[96TalonTS-jets8]

I just put a brand new motor in my 96 Talon TSI (FWD) and i'm trying to put everything back togather but i have a coulple of sensors just chillin in some places and i cant figure it out. Right now, I have a sensor hangin from the back of the block. Pretty much, its dead center, right in the middle of the back of the block and its just hangin their and i cant find anything to connect in to it. I think its the knock sensor, but not sure. So my question is what it is? And most importantly, where does it go?

 

[turboholic]

-2G might be different, but the knock sensor connect to the connector mount on the intake manifold support bracket, the egr temp sensor mount next to it.