1995 Toyota Corolla Cut out

Sirs I am having a problem with my car cutting out during automatic gear changes. The engine idles fine, but when starting down the road the engine starts to cut out as starts to shift through the gears. You have to start out slow from a dead stop because if you try and gun it or gun the engine to pass someone the engine cuts out. I have had the wires replaced, spark plugs replaced, some type of sensor replaced in the destribitor ( the car stalled and would not start at that time). Once the car gets up to highway speeds it, for the most part runs well, but it will still cut out or "bump" st times. Please help!