Dtc Code "pfff"

[4X4DIESELNUT]

a while back I was changing the tire size with my hypertech and this code came up on the reader PFFF. I tried looking it up online then and found nothing that matched that format and nothing seemed to be wrong with the truck and was running fine so I blew it off. Then months later I was driving my truck one day and I got on it hard and it sputtered twice and then nothing else happened. Later on that day, I was driving home and my check engine light came on. I shut the truck off and tried starting it again and the light was off. I then hooked my DTC reader and got the same code PFFF. I looked it up online and could not find any codes that matched

[Rodslinger]

I wish I could help but I've not a clue - let's bump this and see if someone has seen or heard of this.