Hello guys. I wondering what the problem could be. :hmm: When it's cool weather it's fine but when it's get hot outside and it's been rolling for a while, you can hear and feel the engine start choking losing power going in and out untils it ultimately stalls. The car start bucking and jerking till it loses all acceleration power. After the car cools down, it's back to normal again. Is it the fuel pump relay or the fuel pump itself? Or is it the Throttle Position Sensor? Computer codes is E48.