The sensor is located on the top left hand corner in back of the block( teg 01 LS block) right underneath the head.I tried looking for it on the OnDemand at school but no luck...guessing its a coolant sensor? I just need to identify what the sensor is and where the wires connect too.

 

it have a green plug? if so its extra......bah either way if its on the block its extra...

 

I think its green but the wires are black and green splice together into a single wire, running to some other connector or wire. Need to find out where because it cause the car to idle weird?!?!? At first it was the IACV after switching it out, it was back to normal then it start to idle at 2k while in gear(any gear) in neutral its at normal idle. His setup is LS/vtak some shop slap together.