Ok i Cleaned the egr ports.I took the manifold off and the port was completely blocked.The engine light was on before i cleaned the ports now it is off which is good.The car seems to be running a little bit better but still having the problem with the rpms. When I come to a stop they still drop and then kick back up you can feel the whole car jerking.Any other suggestions.

I change my oil,oil filter and air filter every 3,000 miles
I did a tune up about a year ago so i guess I should do it again soon.
I have never changed the fuel filter.