17 l83 sierra stutter/popping

[jayjackson321]

I finished tossing new heads, non-dod cam and all that jazz a little bit ago and been messing with the tune(aimlessly) and i cant figure out why i get a stutter/popping if im cruising at around 1300-1700 rpm and hit a slight incline. I've accidently saved over my stock file a year or 2 ago, so i havent been able to test that out. I been out of the tuning scene for about 8 years and now this all seems like a foreign language. I was going to have a co-worker tune it but he has gotten himself in some trouble and wont be able to help for a couple months.

I have some traveling coming up w/ towing and I'd be extremely grateful if any of you would take a minute to look at my log/tune and possibly point me in the right direction.
5-17sierra.hpl
5-17sierra.hpt

[shartwig.27]

I finished tossing new heads, non-dod cam and all that jazz a little bit ago and been messing with the tune(aimlessly) and i cant figure out why i get a stutter/popping if im cruising at around 1300-1700 rpm and hit a slight incline. I've accidently saved over my stock file a year or 2 ago, so i havent been able to test that out. I been out of the tuning scene for about 8 years and now this all seems like a foreign language. I was going to have a co-worker tune it but he has gotten himself in some trouble and wont be able to help for a couple months.

I have some traveling coming up w/ towing and I'd be extremely grateful if any of you would take a minute to look at my log/tune and possibly point me in the right direction.
5-17sierra.hpl
5-17sierra.hpt

the only thing im noticing is that there's roughly a 6-10% fueling correction at that rpm under a heavier load (80kpa). the question is whether or not its in your VVE table or the MAF table. the only true way to diagnose that is to run a set of wideband sensors and individually tune both tables. I usually say to tune your MAF first then tune the VVE. they work together to calculate the amount of air the engine is consuming and the computer will then give the engine the proper amount of fueling for that amount of calculated air. if i had to take a wild guess though, id say its your VVE table that needs adjusting because its happening at that sudden transition of light load to heavy load on the engine. if you'd like a more in depth explanation of tuning your MAF and VVE tables, look up Goat Rope Garage on Youtube. He has a series of HPTuners for beginners videos on doing the basic tuning steps that helps out a ton till you start getting more into the more complex stuff.