Does This Connector Have A Home

[VrapterN]

Ive done all the research that i can and have watched multiple install videos and cant find anything. Over the weekend i installed the sonata fuel injectors. Install went well until i was plugging the wire harness all back in and noticed one little guy just hanging out. all 11 plugs are accounted for and plugged back in. This one is underneath the manifold and connected to the fatter of the plugs down there. I cycled the car a few times before i started it back up. took it for a spin and she runs beautifully. day two now of driving no cel and no hesitation or stuttering. So i am hoping its just a dummy plug? ill attach photos for viewing pleasures lol. Thanks