'Rough' idle when cold/hot?

If it truly is a rough idle, then try cleaning the throttle plate with choke cleaner on both sides with engien off. It willstart hard after doing this. Make sure to reconnect all duct work before starting the car and clean teh iac valve hole as well. If the service engine light is on get the engine scanned to see why as that may be the casue of your rought idle as well. Also getyour fuel pressure checked.