D1SC 3 bar LT1 - Bog off idle & 4500 rpm

[JSS06C6]

Need some help.. 1996 LT1 w/D1SC and Torqhead 24X. 3 Bar custom OS. Cable throttle control..

OLSD tuning w/Wideband going well, within 2% most areas.. Have not tuned Boost areas yet, because of two issues..

1. Engine idles fine at 875 rpm. I let the car warm a bit, say to 145 F and when I ease into the throttle, it bogs, briefly, then resumes rpm increase.

2. At about 4500 rpm & up, in park, the throttle "kicks back". I can feel the pedal push back against my foot.

3. Throttle follower going below target idle (park) when off the throttle, slowly (3-4 seconds) works its way back to desired idle of 875.

Current tune and a data log attached..

Input welcomed.. Disregard boost areas on VE, I've not moved in to that area since I need to get the engine stable before moving onto Mustang Dyno for boost tuning.

Thanks for the help!Torqhead 3 Bar SD Setup.Channels.xml

[lukearmstrong1990]

stumble is likely from being lean as you come only the throttle.

your VE table needs some work and what map sensor?

LSA sensor is 312.50KPA and -11.25KPA scaling

[JSS06C6]

3 bar.. have made some significant changes to date.. running well, but working on Boost region fueling using VE table.. Currently rich at 10.3 afr under boost vs. commanded 11.3.. Leaning out VE table in boost regions by 6% is not giving me the anticipated change in AFR.. Confused.. This is a speed density tune, staying in OL until I get VE right, then will turn on fuel trims..

[5FDP]

Keep trying to pull out more fuel, see if it responds.