Car has no OBD codes. Starts fine, will sit and idle fine. Soon as you put it in drive,and push the gas pedal you can feel the hesitation. If you drive for 15 to 20 minutes it slowly goes away. If you park it for 2,3, hours runs fine. 5 hours over night, hesitation comes back. Has new plugs because i thought that was problem. Its like the problem comes back after complete cool down. I am thinking maybe mass air flow sensor? One more thing it seems to react to outside temperature. The colder it is the more it hesitates.