Chevrolet Venture Engine Idle Rough

The Service Engine Soon Light Is On. When The Van Is Stopped Or In Park Its Like The Idle Bouces. I Haven't Had It Hooked Up To A Scanner...

Hey Guys Just Following Up! I Am Still Working On This Same Issue Now For Four Years. Of Course The Van Sits More Than We Drive It Due To...

What Could Cause The Motor To Rough Idle Besides The Coil Packs And Plugs/wires?