Engine alarm and loss of power
I have a big problem with my Maxum 2700, equipped with a Mercruiser 5.7L 350 CID engine. When I throttle up, an engine alarm goes off and reduces the engine power for a moment, then it revs up again, sounds idle, accelerates on its own, etc... In short, it's not working properly.
If I cruise at 1200 RPM, it accelerates on its own to 2200... then the alarm goes off and it reduces power again.
I think the carburetor is not the original one. That could be a lead...
Do you think the module that triggers the alarm and reduces engine power could be responsible for this issue?
If yes, do you have the reference for this part?
Thank you for your help.
From Barcelona. 2700 SCR 1998.