Sure thing, Bro'. The EGR valve gets its vacuum from the EVR solenoid(that black thing), which gets its vacuum from the intake manifold. The EVR is just a valve which opens to supply vacuum, and closes to interupt vacuum to the EGR valve. It does this, in response to what EEC tells it to do. The smog pump system works off the same arrangement(the two smaller solenoids).cfiiman said:...This hose runs over to some small black box thing on the passenger side back side fender well...Jason
The EGR valve should hold vacuum, and you should hear it opening. It shouldn't be getting any vacuum at idle though. You can try pulling a vacuum on it, while the motor is idleing, and the motor will stumble - provided that the valve is good, and the passages are clear.
That might just be your problem. If the valve hasn't worked in a while, then the EGR spacer, and intake passages might be clogged with crud, mine were, though my EGR valve was still good. My EVR was clogged too. I simply applied voltage to open it up, and blew through it. It's a pretty easy fix, except for shelling out for the new EGR valve...:sosad: