hey.. I'm having the same prob with my 04 aveo.. my idle is abit rough but I have no shifting problems.(knock on wood). I just recently changed my ignition coil, wires & plugs. I did notice that 3 out of the 4 plugs were shot. I was told I needed to do a camshaft position relearn. any1 know how to do that on an aveo?? now my abs light comes on and I've changed all the pads, abs sensors and still the light wont go off. I think its my abs pump that's shot. any suggestions?