When the computer is reset, it reads not ready because everyone would reset a light and have the emissions done. There is a certain number of miles before the computer rechecks everything. If there is still a problem, the light comes back on.
As far as the EGR, make sure the intake, where it bolts on, is free of carbon. They back up in there too. As far as the EGR, did the valve open fully when tested?
Thursday, October 13th, 2011 AT 9:58 PM