I replaced the EGR control valve and cleaned the ports which seems to have corrected the problem. I should retest for codes but to be honest its real cold and storm is incomming so I think I will retest in a few weeks. I did not get much assistance from the forum which is too bad I found sites like this invaluable for my Saab and corvette troubleshooting and maintenance.
Note I had a call out from the OBE II port and no light on the dash indicating a problem. This tells me that without checking the codes you don't know the condition of the ignition electronics. I also noticed the some of the plastic lines are brittle I will most like redo the car's vacuum lines this spring to insure future reliability.
Best of luck