Ok guys had this car for over a year and a half and just got my first CEL. I take extremely good care of my car and checked all the fluids, oils, and everything is fine under the engine. I do have an Injen Intake so i thought it may have rubbed down like some of the others so I'm about to go check it out.
But heres what happens... I cut my car on and at idle it just shakes a little harder than normal and I have an auto (happens even with the oil hot). Take off sounds normal and everything seems the same except for this. I just hit 47000 miles on the 2000 gts so can anyone help me out here? Ive checked everything I know.

and have a friend who can run a dianostic (sp) if I need it.