i change my o2 sensor and my problem stil

[Nico83']

i change my o2 sensor and my problem still....the car goes very good ..my o2 sensor was bad i've changed this week now is better but wen the car goes hot i push the pedal and nothig happen like no gas...
i don know wat is it,,,,,maybe is the fuel pump...i don't know....
need help

[zank]

if your car turns on most likly it is not your fuel pump

[Nico83']

soo wath is it....may bee is the thermo sensor but doesn´t ligh the check engine...no fail...
meybee are the injerctor but,,, why is only wen is hot...??