An OBD2 scan has revealed that my check engine light is being caused by

"Insufficient EGR Flow"

Looking at the suggestion found at
http://experts.about.com/q/832/4142992.htm?zIr=5#r i tried pulling the
modulator (which I think is the plastic piece that has 1 vacuum tube
going to the EGR, one out the bottom, and two more out the side going
who knows where) I tried blowing air into the bottom of the modulator.
Air goes through regardless of which one of the upper vacuum holes I
cover.  I'm guessing its broken.

I've called my favorite parts house, and they can't find anything named

"EGR Modulator Valve" or anything similar.  Am I calling this the wrong

thing?  Am I going down the right path here?

-Josh