Help!! Engine running way too rich jeep 4.0

I have a question my I have a 2007 Suzuki XL-7 . I need this rubber part not sure what’s it’s called. It’s under the hood where water would drain from . I just need to know what the black rubber drain is called.

Check for a clogged air cleaner. Then check fuel pressure at the injector rail, there is a Schrader valve hook up. Be looking for about 60 psi. If too high, your fuel pressure regulator is located inside the fuel filter (two in one) in front of the gasoline tank above the rear differential. Don't worry about another "burn up" but excess gas dilutes lubrication and you should change oil soon after you have it fixed. It will be okay. It's the best engine Jeep ever made.