Hello all, just have a questions bout my fummins. Now I know It being cold out my start will start hard, but even when there are milder temps and also even just sitting all day at work when it starts it just idles rough. Running you can heat that it missing then all of a sudden you can hear it run better, then after a couple of minutes it will idle on all 6. Question is can it be the injectors, or DVs cause ive delt with this in my dodge and had replaced everything. Any help would be appreciated thank you.