All of the hoses on this car are original with 121k miles and need to be replaced. Been trying to troubleshoot this high idle issue with P0507 code and need help diagnosing and fixing this problem desperately. I've purchased alot of parts for this car and it's bugging the heck out of me what could be causing this P0507 code. Any ideas of where I can purchase this hose and what that cylindrical looking part is called right next to the plate on the uim plenum where this hose is cracked at?