I've got a 3.4 with a 4.3 TBI and I'm having an intermittent problem with it stalling and erratic idle. I just had the fuel pump go out and I got a free used one and put it in and it started right up so I'm sure that was the problem then. I did wait a week or two to change the fuel filter but the old filter was only a couple of years old. I've got a new TPS and I'm going to reset the minimum air. Does anyone have any other ideas, Could the MAP Sensor or Idle Air Control Valve have anything to do with this. Any help would be greatly appreciated. Thanks,