I was wondering what would cause the car to idle be shakey when sitting still. When moving the car runs perfect but when still it idles rough, a little low. The best way to describe it is when you turn the ac on and the rpms drop a little and you feel the shake but its like that all the time stopped. It has never dropped enough to stall out. Ideas?

 

first thing, check IACV and clean it
i would check the ignition system, mine had similar problems but its gone after i reset the ignition timing and replacement of cap and rotor