This is an ongoing problem I have been having for awhile: After sitting for a few days, my throttle gets stuck closed. When I press the pedal, I get alot of resistance, and its like I have to "break" the butterfly valve open to rev the car. Once I "break" it open, the throttle works relatively fine, but still feels a little sticky after I let off the gas. I know that the problem isn't in the throttle cable but in the throttle itself. I lubricated the inside and outside of the throttle body, but am still having the same repeating problem. Any ideas?