2019 Mustang Bullitt - Ghost Cam

[graysonlarac]

I have a 2019 Mustang Bullitt.
I am wiring a Ghost Cam Tune for the car and without the AC On I can get it to lope amazingly without drivability issues.
However, when I do turn the AC On the car surges really bad on idle and never settles back down.

I have played with the idle adders and still unable to get it to chop at a stable idle with AC.
If anyone has any suggestions that would be greatly appreciated!
Thank you in advance!

[Pistol_91]

Mess around with Optimal Stability