My 2005 F6 EFI likes to load up when it idles for for about a minute or so. If I get on the throttle for a few seconds it clears right out. It seems to idle fine at around 1800rpms. It really isn't a problem, just doesn't help when you are lined up with your buddies to drag race. I started noticing it lately and the weather has been warm(20s - 30s). I'm not sure if that is a factor. Any ideas why or how to solve?