You guys are all off (except Paul). The Carbon Canister is under your fender. What you are looking at there is called the canister purge solenoid. It's function is to allow the vapors collected in the carbon canister to flow into the intake. Without a tune, I do not believe it will run properly without it connected.
The vacuum lines go into your intake, and in the other direction into your charcoal canister under the passenger fender. From there the line goes to a hard line that goes to the gas tank.