fuel, brake problem?

Car starts bad, but I've given up looking for the cure. Now, after I drive 100 yards, or so, then stop at my 1st stop sign, and go, the car is very hesitant like its about to stall, then the brake light and trac off lights come on, then car is good to go, no more hesitation till next car ride. Im dumbfounded.

99 3.4 125k auto

The ABS and Traction Control (ETS) systems test the wheel sensor output during the time you first get going. It is called initialization. If false wheel spin is sensed due to a defective wheel sensor it may cause a reduction of engine power which may explain the hesitation.