check engine light and alarm

[mjb6]

I have a 2000 prostar 205 and everytime i pull a slalom skier and make a hard turn or make a hard turn at high speed the check engine light will turn on And the alarm will sound. However i experience no power loss or change in the running of the engine. When i stop the boat following this and shut it down and restart everything turns off and the boat continues to run fine again until i make a hard turn at high speed. Ive checked the oil when the engi.e is cold and levels are fine. Any dieas?