I am trying to tune my first cummins and running into a major issue. The truck is an 08 with 27000 miles on it. it has never had any sort of tuner on it prior. i used the stock file from the truck when i built the tune . When i flashed my deleted tune in it set ecm code p0607 and went into reduced power mode. tried flashing agian and it worked fine for about a day then randomly on start up it set that same code again. tried flashing stock tune w/deletes back in and still after about a day of it working fine it throws the code. Has anyone had this issue and could help it is greatly apprciated thank you.