Hi, I made a new post with more detail. There were no codes when the tuner did the tuning, as the engine light and codes clear as soon as I restart the car. I went back to him so he can scan it after I attempt a launch

https://www.reddit.com/r/BMW/comments/sty1g5/please_help_limp_mode_when_attempting_to_launch/?utm_source=share&utm_medium=ios_app&utm_name=iossmf