*** Begin unnecessarily long backstory ***
The car I'm working on is a 2012 Boss 302. I bought it with a lot of modifications already done: JLT intake, BBK 85mm TB, Kooks 1-3/4" LT headers, and catless midsection, GT500 mufflers. I had no idea who did the tuning, but it had a bunch of weird drivability issues. First I looked for vacuum/exhaust leaks, and I didn't find any. So I did some remote tuning through an online retailer. After about 5 revisions it was almost as bad as when I started. So I decided to give it a try myself.
I flashed everything back to stock and then I entered the parameters for the throttle body model that someone had posted on this forum. Then I adjusted the MAF period vs. Air Flow table based on average LTFT + STFT averages. After I did that, the car was running and driving a lot better than it ever had before.
*** End of backstory ***
Here's the problem I'm having now: When I let off the pedal, after a few seconds I feel like there's way too much engine braking going on and the AFR sensors go full lean. Someone suggested adjusting the torque based decel settings. So in a previous version (not the one I'm posting) I disabled the torque decel switch. It would do almost exactly the same thing, but then it would stall out when rolling to a stop. Can someone take a look and point me in the right direction?
Edit: When I roll back on the throttle under about 2k rpm I get a bad pop which I would love to get rid of too.
FPRD1_V16.hpt
LogV16.hpl