yep yep..... its not the egr valve thats messed up.... i mean if the light comes up then the egr valve is doing its job .... the problem is in the intake manifold carbon build up... u need to get it cleaned... thats what happened to me but it really doesnt do anything harmful besides waste more gas... what i used to do when i had that problem is i trned on the car waited till it warmed up then turn it off and then on again ... the light wont come up... but get it fixed