The only thing I can think of is that, the intake temperature readings where all out of wack...coincidence maybe that all stars aligned that specific day/time to override everything...

I am still going to do one more datalog now that it is running super strong to confirm my butt readings...

 

Could it be that your on Summer Blend fuel??? I know that Diesel Winte rBlend fuel reduces power & MPG. But not sure if they put any additives in the winter time up north to stabilize Gasoline.

 

problem was fixed...(edit)