When I start my car up from it sitting for a couple hours, it idles alright, then after about 20 seconds it boggs down....almost dying, then revs back up....then it does the same thing about 5 or 6 times, then it idles fine. What could be the cause of it? Could it be the injectors? I believe they are the originals and the car has 54,000 miles on her, so I'm guessing that might be the cause, but I'm not sure. Please help if you can!