Once I get car started it will idle, once i press fuel peddle it once to stall?

What is your question?

It started acting up all of a sudden. It has 205K miles on it. I changed the fuel pump 50K miles ago. was working fine then all of a sudden when I put the car in gear it just hesitated. I was able to drive it home but when I pushed the peddle to the floor it would stall. It hesitates to start but once it does it idles fine but when I press the peddle down it stalls and some times it sounds like its choking or back fires.