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That should have a foam cover, as this is where the vacuum is released when the throttle is closed. This keeps the egr valve from being open at low/idle speeds. Your picture shows the other 2 vacuum lines & thats all thats in the diagram for the egr solenoid.
I see you're fighting the wire bundle on top of your oil filler. I traded sides with my rocker covers to solve that problem. That gets you away from the delicate high pressure safety switch on the back of the a/c compressor, too! Much better!
