2g Wise Men needed. I found some stuff disconnected

[my98GST]

I have no idea what these sensors are that have been disconnected every since I've got the car. I will provide some pics. In the first pic it is circled in to the harness to show in the second pic where the sensor is connected at in to the harness.

 

[my98GST]

Now here is the sensor, the first pic was to show where the sensor connected at in the harness.

 

[my98GST]

And these doods right here

 

[scottsee]

http://members.shaw.ca/dsm.1000q/Engineprimer/2G/Q2.htm