Super simple. Replace the EGR filter (good luck), have the EGR valve
serviced, then reset the light on the dash by finding the white reset
button on a 2" square black plastic box on the speedo cable under the
van near where you left foot would be when you are driving.

Push that button in until you hear a loud click.

Bringing ideas to life,
G. Matthew Bulley
DeLuxe Management Consultant
CSC
http://csc.com
"Fax mentis incendium gloria culpum"