anybody know where the nipple under the throttle body goes connected to as circled in the pic.bc i have a loose hose thats connected to that nipple under the tb but can't seem to find where its connected to. plz help any help appreciated . thanks.

 

you can by pass the nipple you circled and the nipple right behind it. that is called the fitv valve it suppose to heat up your throttle body. the important valve is the iacv. i just by passed it to keep the intake temperatures down. the coolant port that is coming from your intake manifold by the fourth cylinder has two coolant hoses. one is big and the other is small. the small one comes out of the intake manifold into the nipple you circled then a line goes from the other nipple on the throttle body. then the hose connects to your iacv then the a line will follow into your water pipe under your intake manifold.