Why would a Chevy Cavalier tend to stall when slowing down and turning to left but not to the right

I dont know how much this will help you, but i had a 95 cougar and every time i turned to the left it stalled out. So one day i bought Full injector cleaner and put it in, Went to an empty lot and drove in circles to get the kinks out, and it worked, never stalled again.