ok so on the throttle body of a 2.4l twin cam motor there are how many vac lines?.......just 2 or 3?......what im trying to find out is what one of the lines comming off the throttle body is, i know there is the tps sensor,iac control but what little hose is it inbetween the two vac lines?....its larger and hard plastic type and goes into a little box or something, what is this?

If I remember right, there are three lines off the TB. The smallest goes to the fuel pressure regulator, one of the big ones goes to the brake booster, and the other big one (the one you are speaking of) goes to the charcoal canister.
I haven't had a 2.4 in over a year now so all this is off memory.