When I start the car it hesitates or bucks and has no power for 10 minutes or so. When the rpms drop after this time I have to turn off the car and retart it. At this point the car runs like a charm and you couldnt tell there was a problem.
When started car hesitates and has no power for 10 minutes on 2004 Nissan Sentra
First I would scan the computer for codes. It sounds like a sensor or system is malfunctioning when it is cold and then works properly when it is warmed up. Also, check for any signs of vacuum leaks. Are you current with all of your tune-up work?