Join Date: Feb 2012
Location: Upstate, South Carolina
Hackster, there should be two vacuum ports. One goes into each barrel of the throttle body. The fittings are used to measure the vacuum thru each bore and make adjustments to air flow to compensate for minor machining differences. Once those adjustments are done there is no real use for the fittings. I can't remember whether both fittings are on the same side or not. But if there is a port with fitting and cap on the other side and this is the only other opening, then yes, this is missing the fitting and cap.
Actually, any plug should work OK. Don't worry about getting the exact same elbow fitting and then capping the fitting. Plugged is plugged. I venture to say that it runs REALLY poorly with that hole wide open.
BTW, I see you are in upstate SC. I'm near Spartanburg. If there's anything I can do to help let me know.
2013 Cross Roads Classic