Car Problems Help!!!!!!1

My car will start to sputter anytime after 5 min or anything but it doesnt do this often. It will sputter and most of the time it stalls sputters and stalls again I got it fixed once, then i got the throttle cleaned and it didnt sputter for a month and now it's starting to sputter and stall whats the problem? :cry:

Idle motor it may be. I had the similar problem on my first car and it turned out the spray lubes idle motor, then after a while it wears off, which basically means the motor was bad... but about mits i dont know :?: