Surge feeling on Throttle & stalling

[boomerang2002]

My problem: Sometimes when you pull into a parking lot it will stall itself out or act as though it's going to. I also have the feeling of the throttle surging. I was getting significant black smoke pulling out. I have checked all fuel filters, just yesterday (Friday October 24th) had all injectors replaced, the water pump was replaced on Thursday. I also tried starting it yesterday in 42 degree weather, it started hard but then wouldn't hold an idle. I've done everything so far that the Dodge dealership has recommended being done.