Ok, so i only get this issue during a coldstart (sitting overnight or an hour ish). So here's what its doing, when i start the rig everything idles good, as soon as I hit the gas it revs up and then starts to stall out, i rev the gas a few more times and it bogs and does a small backfire like sound and then starts idling great again. I can drive it around for hours on end or all day and it runs tip top, no stalling, bogging, nothing, just runs perfect. I can turn it off after it warms up and back on and nothing... runs great. Wait 10min start it up.... runs great. This only happens on a coldst