I've been having problem lately with my '00 GT Vert that it is idling all over the place. Sometimes in the mornings it is fine but I'm having problems with it bogging down real low and then jumping up or even just getting down low enough to cut off sometimes. It sounds like a vaccumm line but they all seem to be in place. I'm not sure if I might need to run injector cleaner or something else or what? What could be causing the really rough idle. Thanks