when u start it up it idles fine revs up when you put it in gear it wont rev up

Would need to do some basic diagnostic tests and look at information on a professional grade scan tool to see what sensors are reading. Kia as a car manufacturer put a lot of great technical information and work shop manuals on line for free for Kia owners. www.kiatechinfo.com

Key way is broke that holds the cam in place. Less than $10 for the part to fix. I would replace timing belt since you have to pull it off to get to the cam.