I'm not sure that this is even a tuning thing, but even so, I figured I'd upload the log and then I'll describe "everything."
I had all sorts of misfires. Turns out I burned several plug wires near the turbo exhaust. I then realized that I also burned the wiring harness on the opposite side of the car. Today, I installed a brand new harness, etc. Now, I have no misfires, but when the car is under a load and reaches around 3500 RPM, it degrades to Reduced Engine Power mode. I don't readily notice why though. I also put in a brand new VCM, did the VATS flash, etc. So, you can see I (was forced to ) changed a bunch.
The spark plug wires don't seat "well" on the coils. I tempted to hit the boots with a little hair spray. This might even be the source of my problem, IDK.
1:38.408 is when the REP flag gets set to "ETC." So why would the throttle control be triggering this?
Side note: don't sweat the Wideband. It needs to be re-calibrated now that the car is running. All sorts of whacky oscillations.