Simple for those who know! Please identify these connectors
 

Hello Pelicans,
My Dad and I picked up an 85 Targa a few years ago (7-8 years ago). It has been at his place up until recently when they moved. I have helped my dad with some work on it here and there (interior door handles, shifter bushings, front struts etc). While checking the oil level today, i noticed that a connector was crudely being held in place by a piece of wire. I have been looking online for references to these wires but came up empty. There are 3 connectors (circled) - what are they for? Hope he takes it back with him because i can see the Targa pushing back my own project car ;)

thanks for the help!

borrowed a pic online for help with this.
http://forums.pelicanparts.com/uploa...1546749379.jpg

Head temp sensor, reference sensor, speed sensor, all go to the DME( brain) if they come loose car will not run

thanks! is that from top to bottom?

here is a detail for you
http://img.pccreation.net/photos/201901060920296499.JPG

@proporsche Is this from the Bentley book?

Yes, that is from the Bentley manual. Buy a copy if you don't have it, it is very helpful.