rick 10/14/2012OK . So tell us what you replaced . Black smoke and running like crap at an idle is a sign of over fueling . ( getting to much gas )
rick 10/15/2012Now with you saying it's been sitting look at it this way . Gas now a days only stays good for about 2 weeks . After that it loses it's burnabilaty . Try running low on gas than fill it with SUPER UNLEADED and see if it clears up . The hardest thing on a car is letting it just sit . Weird vodo things happen when they sit for long times .