Yes, those to little black plastic hoses are where you stick a vac hose in. You only do one at a time. They slide off very easily, just h old your thumb nail against the black ring, push down a bit on the hose, and pull up. Stick your hose in there and suck it down. Word of advise... this method does not do as good as a jon as I thought... I sucked up a can of b-12 2 weeks ago, car ran better... but this weekend I pulled the UIM off and it was NASTY. Go to the pics and vids section, you can see pics from my hardcore UIM/LIM cleaning.

2006 Pontiac G6 3900SFI GTP Coupe CAI, Stainless Cat Back, Vector Tune, Strut Brace, Eibach Pro Kit, Custom Made Projector Headlights, 4300K, 20% Tint Former Owner- 2000 "Stryped" CSVT CEG Dragon Run- Oct 13-15