My car is having problem starting, the car crank fine but when it start it would die out like it not getting any fuel. I would have to pump the gas pedal 5-6 time before i crank it and it would start fine, but if i dont pump the gas pedal it would start and then die (not getting fuel?). The car drive and idle fine once it start, it just the starting doing this, im thinking it my fuel pump? but i hear the fuel pump prime fine...

Edit: Sometime i start it and the rev will be at like 300 then it would slowly go up to normal idle but i would give it gas so the rev will be at 1k and after a few second the car is fine.