on the b16a of a 99 SiR, there's 2 steel tubes between the valve cover and t/b. one tube goes from the valve cover to the intake tract while the other steel tube is attached to the tube going to the intake tract but goes to the throttle body. from what i know the other steel tube carries the coolant(correct me if i'm wrong) to the throttle body, so my question is, is that line a coolant inlet to the t/b or a coolant outlet from the t/b?

 

Good question, replace a section of the tubing with clear hose, and watch the flow.

 

uuuuuum, that line goes to the throttle body for warmth in the winter, it would be an inlet, but i don't believe there is another line for "outlet", so, I dunno what you'd call it...

 

This system is connected to the IACV, which has the other end of the coolant flow.

 

thanks. anymore???

 

i think hes got it!