What is this supposed to plug into
#1
What is this supposed to plug into
Not sure if this is the best section but I found this yellow connector randomly unplugged in my engine bay when I was doing a knock sensor swap. This connector comes off the harness right where the #5 injector connector is. What is this supposed to plug into stock? My car isn't throwing any codes so I assume it was something that was removed, but I just am not sure what this is. Something from the AIR?