Ok assuming I can get this on without that, what is an OBD canister?Also what is the vacuum switching valve? These instructions in the installs section are confusing
You see that black thing that the black hose and plug are connected to? That's the OBD Canister.
You see that black thing also with the two red hoses in it? That's the vacuum switching valve. Just find that thing with the two plugged into it next to each other and follow the directions, you'll get it.