Home › Forums › Stay Dirty Lounge › Service and Repair Questions Answered Here › 2009 Chevy Cobalt High Idle after cleaning MAF and TB › 2009 Chevy Cobalt High Idle after cleaning MAF and TB April 19, 2012 at 11:00 am #439648 MattParticipant If you are certain that cleaning the TB created your problem, there’s nothing wrong with getting one from a salvage yard. Should save you some bucks. Good luck man, and keep us posted, because I want to know the fix.