mau I have had the boat since 2014 at 63 hours. The boat now has about 614 hours. I have never had any ECM problems or had someone do an update on the ECM. The scanner was rented from a local boat parts house and I don't know the complete scanner status. However, the scanner hours did match my console engine hours. It also gave me the correct previous engine codes such as engine hot.
In addition, I disconnected the following items one by one and the beep never stopped: TPS, IAC, and thermostat. The engine just shut down when I disconnected the Map sensor.
Currently, I am having a mechanic come out with his scanner to read the engine code. I will post his results later today.
Thank you for your reply.
Regal 3360 5.7 GI-J 2009