Thread: Where does this connector go?

I see it now it is #4 but where does it clip onto? The P/S reservoir? If it clips onto the reervoir, how do i change the reservoir out?

#4 is indeed the connector for the Knock sensor, bank 2. As you can see in the picture I posted there is a loop hole in the PS pump that a "peg" or similar on the connector should snap through.