fuel pump filter issues

What is your question?

just change my fuel pump and filter because car was shutting off both on idle and driving,nothing has change since, it still does the same,though has gotten a little better but on acceleration while doing a drive test it seems to jerk for a few seconds while holding the pedal then releases,this is at 3,000 rpm reading. the car has no problems starting,been starting it everyday and just driving around my resident area. the shutting off only occured once but the jerking thing continues at 3,000 rpm on acceleration but it does releases and the car continues to drive normally. nothing technical as i know,whats causing this.