Incorrect attachment could have adverse effect on the EGR operation, but you said there is vacuum present on the port. So, I am assuming that they are installed correctly.
Believe it or not, EGR operations for the most part won't set the CEL specific for EGR. It will only points to either idle or emission problem.
If the junkyard has one for $6, I would just replace it. Just make sure that you get the solenoid as well.
From the picture, it looks right. That hose should go towards the vacuum collector at the firewall.
Wednesday, March 18th, 2009 AT 9:48 PM