Firstly - tell your Dad to get that scratchy metal off of your paint.

On the charcoal canister there is a label that tells where the hoses go.  I copied and annotated a picture, below.

And one of those picture looks like it is T-ed in to the PCV system.  But the thing that it's connected to is a bigger clue.  Added a picture of that also.  Take a picture of that and we'll know more.

If i got the explanation from my dad right, then both connections on the 3way connector are right and the free one needs to go to the yellow port. Currently there is a hose from yellow to to of inlet manifold, which is wrong. Needs to go from the other plug on the canister to the inlet manifold.

Actually, after  I posted that I remembered where the hoses go.  The small one with no hose is the control hose.  It goes to ported vacuum on the bottom of the throttle body.  The one next to it goes to a big port on the intake manifold.  The far one goes back to the tank. 

You might be saying the same thing, I'm just confirming.

The way it works is that when the throttle is opened the small hose opens the valve so that the big hose can suck air through the canister in to the intake manifold, clearing out the gas vapors that have come from the tank.  It's a small amount of air but it's set up so that it's not a vacuum leak at idle.  It's just a small vacuum leak when the throttle is open. I think that it's the only planned vacuum leak on the intake system.  The only air that does not pass through the AFM.