So I cleaned the egr valve today and the ses light shut off... 36 miles later back on same two codes.... I know its not misfiring my car drives way better no hesitation.. Exceleration is up and since I cleaned the egr my mpg has been up.. According to dic.... Any ideas... Im gonna go to a junkyard and grab a egr valve and a new cpil pack for 1 and 4 tha junk yard near me has two of my exact cars there and if that corrects problem im gonna buy brand new ones.... Oh and im not sure when the last tune up was I just bought the car less than two weeks ago..