I'm assuming this started because of the cold weather, but lately my car won't return to idle right away. It will drop down to 1,450 RPMs and just sit there. A few jabs at the throttle will get it down again, but it gets rather annoying as I don't like to shut it off if it's still dumping in fuel. Could this be part of my pesky vacuum leak that has been the bane of my existence? All of my attempts to lubricate the throttle cable have been ineffective. There's got to be a better way of doing it. Thanks for all your time! payne