I haven't really had too many problems with this car. I have about 135,000 miles on it. Had the 3-stage fuel injector cleaning a couple days ago hoping it would fix the problem. When I start the car and it hasnt been running for some time, it starts fine. The engine will then idle really rough, to the point of almost stalling. This is remedied when I give it some gas and start moving. The problem does not reoccur during normal driving conditions, only when I first start it up. About 25,000 miles ago I had to replace the EGR valve and the convertors (it has 3!) due to my ignoring of an engine light. So the EGR is pretty much new. This all started about 2 weeks ago. I live in Northern Ohio and I want to fix this before the winter hits. I read some questions and people mention loose items, or worn piston rings, or EGR valves or idle control valve. There is no engine light on at any time. Any help or advice would be greatly appreciated!