HELP HELP HELP O2 SENSOR on 2003 Toyota Highlander

I VE CHANGED MY O2 SENSOR IT STARTED FIRST NOW CANNOT KEEP THE CAR RUN I NEED TO PUSH THE GAS PEDAL ALWAYS SO I NEED TO CHANGE O2 SENSOR AGAIN ????

1 answer 1 comment
SEEK PROPER DIAG AS YOU ARE WASTING YOUR TIME AND MONEY. O2 SENSOR WILLL NOT NORMALLY MAKE IT START HARD
i know it s not about o2 sensor that the car doesnt run but i want to know what might be ??? i just told what i did and what happened to car after changed o2 sensor