i was driving home today and i got a cel, its a code 43 fuel supply system.
what are the possible problems?

 

Oxygen sensor.

 

well i drove to the mall, it was bogging out and almost stalling, then when it stopped bogging tons of white smoke blew out

then when i finally park the car, it was bogging, i tried to give it a rev, loads of white smoke again, then stalled, now it wont start

any ideas??