Installing new timimg belt - What is this part I broke?
 

It is the white female plug in the picture. The male plug wire (single wire) broke off from harness and also lost male plug. Is this a compressor connection or knock sensor? Where to find?

https://cimg6.ibsrv.net/gimg/www.cam...91162bab6d.jpg
https://cimg9.ibsrv.net/gimg/www.cam...e11414a2de.jpg