I am trying to figure out if my issue is tune or mechanical. I am posting here because this all started after the tune, kinda. Let me explain. About a week before going to get it tuned, it was randomly popping. And by random, it wasnt for a set time, set time in between pops, sometimes it didnt do it. No issues while driving. Get home and checked all spark plugs and wires. Issue stopped, thought it was a loose plug wire. Tuning day comes, get it tuned and its running perfect. Next day I go out for a 2-3hr trip. Half way though, it starts acting like misfires, but only on idle. At anything under about 1800rpm, it feels like it bucking a bit but clears up at 2k. My bank 1 LTFT is way high, high enough it set a code for it. Bank 2 is about 7-10 below it, but both bank equal out when you give it gas, but also stay at around 5-7. I have, put new NGK TR6IX, Scott plug wires, tested the coils, tested injector leak down, check for air leaks with starting fluid(probably not the best way but thats all I had at the time). I posted over on HPTuners and Alvin from PCM of NC told me that the tune was not great and that I had misfires in bank one. My Autel scanner is not showing me misfires. I posted my tune and 1 data log, thats how he came to this. Problem I am having is trying to figure out if its tune or mechanical before i find a new tuner, mine is MIA. I will attach the tune and log. Any insight will be helpful on what to look for, This is my set-up.
2008 Trailblazer SS
GM create LS3 w/Hot cam.
L92 truck intake
102mm TB
LS7 MAF 4" piping
Delta PAG E-fan set-up
ARH 1 3/4 w/cats
Cat-back exhaust
Oil catch can
RPM LVL6
Circle D 3200