Hi,

I am not sure of the exact term but I think it's the carbon canister, a black plastic little canister that is bolted onto the firewall on the passenger side.

I have noticed that there are 3 plugs there, but one of the plugs has no hose coming off it on mine, just 2 have hoses.
Is this normal or am I missing something?

Is normal

So funny - I was cleaning my ISC at about 7:30pm tonight and thought the same thing about that 3rd in/outlet on the canister :)

I saw that there was no rib to help hold a hose on, so I'm pretty sure it's just a breather.