some of us here who have cel's and codes re: egr have cleared the codes by cleaning the egr ports behind the throttle body...and the throttle body as well since u have to remove it to get to the ports...
others can offer more insight, but in the meantime u can go to the how-to's section and read up on the procedure to clean the ports
i have 95 tho which pulls different codes so this doesn't necessarily have to be whats wrong but the ports getting clogged with carbon will definitely give u codes for the egr system
99 expedition eddie bauer, 5.4 v8, k&n drop-in, 3" magnaflow catback and gas mileage that makes the contour look like a hybrid
| 
