I dont know why but when im at a low rpm and floor it ( in any gear) my truck stutters real bad. I cleaned my K&N out but nothing. I havnt tried changing plugs or wires yet. My engine only has 80000 on it and it just started this outta nowhere. Never had anyproblems like this before. Thanks for any input....
Change the plugs.
Pick up a can of MAF cleaner and follow the instructions on the can.
You may have over oiled the K&N which let excess oil contaminate the MAF sensor.
Pull the codes and see what shows up.
Mine did the same thing once and it was a plug wire! I had a wire leakin voltage out to a braket and groundin itself out! Start it up at night and pop the hood and see if you see and sparks or anything!!