How can check the voltage is good to pcm. I have 12.8 at the starter but I’ve been getting a low voltage alarm on my garmin units. Engine ran bad last time out. Just started looking at it. Had surgery recently so have to take it easy for awhile. Looking at that before I unhook anything. Wondering if I have a bad connection or corrosion somewhere. Next on my list is air fuel pressure. I did smell some gas fumes idling at launch but no obvious leaks. Air rail didn’t have gas in it when I pressed the valve. When engine is running I see 13.4 on vessel view. Thx
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