I have a 93 Corolla with 200K that has started to stall after it warns up. It will idle fine in park or neural. I have replaced many of the easy engine parts and made sure the transmission fluid was correct. It was over filled so I drained it and added new fluid. I cleaned the throttle body but it still stalls especially in warm weather. If I use hi octane in winter in will sputter but not stall as much.
