Rcook52057
New member
I have a 2010 6.2l mercruiser with serial number 1a614374 I had what I thought was a low voltage issue with rough idle. I replaced both batteries and new alternator then realized it might be IAC valve which I replaced. Now I get 1 beep every 60 seconds. Low voltage and rough idle gone. Runs good at odor and wide open. Alarm goes off every 60 seconds I cleaned the o2 sensors and still same beep. Looking for. Help