SLOWING TO A STOP AT LIGHT. WAS GONG ABOUT 25. ALMOST AT COMPLETE STOP, WHEN ENGINE WENT TO ALMOST FULL THROTTLE. I PUSHED BRAKE HARDER BUT STILL DROVE INTO THE PARKED CAR IN FRONT OF ME. NO DAMAGE DONE, JUST A VERY HARD BUMP. TURNED KEY OFF, PUT IN PARK. CAR IN FRONT OF ME DROVE AHEAD AND PARKED TO SIDE OF ROAD. I STARTED THE ENGINE AND IT IMMEDIATELY WENT TO VERY HIGH THROTTLE. TURNED KEY OFF, WAITED 20 SECONDS, TRIED AGAIN. AND IT WAS OK. I PULLED AHEAD AND OFF TO SIDE TO TALK TO OTHER PERSON INVOLVED. AFTER 15 MINS I CALMED DOWN AND WENT HOME. *TR