The car drives great and the engine is overall very smooth. As far as I can tell power is great as well. But at idle, it feels a little rough. I don't want to make it sound terrible, but it doesn't feel quite right to me. It almost feels like constant misfires, but I don't think that to be the case as the car is OBDII and it would throw a check engine light. Basically at idle you feel light vibrations. But I have no problems accelerating from a stop or anything like that. I had my mechanic check the plugs and he says there are the correct ones and in good shape.
Assuming the plugs are ok, what else can I check? I thought I'd read something about coil packs or boots to them. Is that right? Should I be checking those?
Any help would be appreciated.