While driving under a slight load or lifting off the throttle my car surges like the ecu doesn't know how much fuel it needs. Car bucks like a bronco. No codes and nothing out of the ordinary showing up on the Durametric live scan. What gives? Fuel pump?, fuel pump relay?, fuel filter replaced 25,000 miles ago (maybe)? Under high loads the car doesn't skip a beat but when letting off the gas it bucks. Anybody? Anyone?