My fellow brothers/sisters. I'm having an issue with my 1999 mustang
gt. When I turn my ac on it idles fine in park and in neutral. When in drive, the rpms bounces up and down making the car try to take off, then shuts off. With the ac off in park/ neutral the car will idle at 7-800 rpm. In drive, it will idle at 500rpm which seems too low. Also with ac off it will not shut off neither will the rpms bounce. My baby also seems sluggish on take off's. As the rpms get higher the better my throttle response.