iac valve. idle air control

Hello everyone, I want to share with you my experience After having the boat stopped in a dry storage for a month when I want to start it and I had 2 beeps alarm every minute on my 2006 Mercruiser 5.0 MPI with 300 hours. After reading several posts I thought it could be the IAC valve, I changed...

For about 5 weeks sc5000 alarms going off when idling out of slip. Then twice the starboard side engine shut down when idling when SC alarms. The alarm sounded in the same spot out of slip/dock each time. So....last memorial weekend we went out late before fireworks show, stopped ate and idled...