Help Please. Constant alarm on Mercury 200 EFI.
I swapped engines on 2 bass boats and put a 1996 200 EFI on my bass boat. My original engine had the oil injection for oil, but the 200 EFI already had the block off kit applied for premix fuel. I ran the 200 EFI on the boat it came on before I swapped engines for about a year with no problems and no alarms. I premixed the oil on the boat I swapped the engine to 40:1 since it’s the first running and with the fuel line disconnected pumped the primer bulb until I got one quart of gas out then dumped that gas in the tank so I have premix fuel up to the engine and then connected the fuel line. The first time I turned the ignition on I got the constant alarm. I started the engine and ran it briefly and it ran great. Could it be that the engine thinks it's not getting the injection oil it expects? Can anyone tell me what this alarm means and how I can stop it?
I tried a couple of things. I disconnected the tan wire coming from the cable attachment and the alarm still sounds. I disconnected the tan wire with the blue stripe coming from the lower of the 2 boxes on top of the engine (low oil warning module?) and that makes the alarm stop.