I know this aint a mustang v6, but its a 87 thunderbird with a 3.8 v6 and it has TBI (throttlebody injection) My mom drives the car but she says that when the car is not warm it will studder and die when she starts coming to a complete start. When the car gets warm/hot it drives fine and dosnt have that problem. I cleaned out the throttlebody with BG intake/tb cleaner a few months ago and after that it never had that problem. but the same problem came back. Changed the fuel filter and the car got new plugs last year. Any ideas why that would happen?? I dont even know if i can pull codes on this T-Bird, never tryed. please help. thanks