Acura TL Builder

On the supercharged TL, my transmission wont shift to third every time. It seems it will be fine the first maybe second time, but it get stuck on second after driving the car a while. Is this mechanical or electrical? Only began when I tuned the Comptech supercharger the second time. Could this be something that could have accidentally been changed via Hondata module?

When it won’t shift, I just ease off and let the RPMs go back to 4K and it shifts to fourth. If I do just under WOT in second it will shift just fine.

@peter6 ?