I have been logging Fuel trims, knock, timimg, and VE and slowly tweaking my VE tables for part throttle conditions via the fuel trims, the stock tune file looked the himalayas
after logging and tweaking resetting ltfts after each tweak and prior to next run for datalog my VE tables now look fairly smooth ( see tune file below)
New logs show LTFT's in the 1-2 range vice original in the 9-14 range and STFTs have dropped from +- 30 to +- 12
rear O2 are set at 376 degrees so they did not affect fueling and during these tweaks I had DFCO set up to basically be disabled to no throw off data carefully avoided WOT conditions during these logs and tweaks of the tune.
i would appreciate any input form more experienced tuners as Im learning as i go !!