Well mostly in the moring when i start up my car it starts nasty like its runnin on 3 cyclinders but when i start to drive it like in 10 seconds it goes back to normal.Any idea what it is?got new spark plugs/wires,distributor cap. but no idea. it happens throghout the day to when i start it up. and at stop lights the rpm is like at 400 instead of 700.Any help would be great its a 1996 Honda civic Dx