After I drive my car for a while say 20 minutes then my engine start to hesitate and then shut down especially when the temperature outside is hot and when the engine load is heavy (uphill). But after leave the engine off for 2-3 minutes and then the car can go for another 1km or so before it's start to hesitate again (even on flat road). Could it be the sensor (I don't know what it call) near the oil filter, looks like O2 sensor, with 2 cable (color yellow/green and black)? Anyone know? Please. Thanks.