Truck sputtering

[FIREMAN40]

I have a 2002 Ram 1500 V6 with 109,000mi On occasion after i start the truck and its been idling for a fw minutes it starts to sputter. Once i put it into drive and take off it will sputter a bit but then it will drive normally the rest of the way. Ive changed the O2 sensors the coil packs cause it has new plugs at 90,000 the mass sensor been racking my brain as to what it could be