yeah the EGR valve lift sensor is on the passenger side but, i think that is the EGR vacuum control valve but im not totally sure. if it is there should be an EGR control solenoid valve right next to it. the only other thing that i can think of that has a vacuum in that area is the FIA (fuel injection air) control solenoid valve.

trace the two nipples on the front side of the intake manifold down one should go to the FPR and one should go to a y-shapd hard line that goes to the EGR vac. control valve and from the EGR vac control valve a it connects to the EGR control solenoid valve returns back to the other side of y-pipe.

this is off the top of my head and from my f22.. sorry im not a very good drawer in paint.