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Check Engine Alarm

dnicholas47

Jetboaters Commander
Messages
237
Reaction score
233
Points
192
Location
Cincinnati, OH
Boat Make
Yamaha
Year
2015
Boat Model
AR
Boat Length
24
2015 AR240. Port check engine light has been on intermittently for the past 2 weeks. A couple of times the rpm at idle was low, so I messed with the plugs and it would correct for a couple of days. It would seem to come on first thing in the morning, or after we had been wakeboarding or tubing for a couple hours and it sat while we ate lunch. That was when we were on vacation.
Got home and just put all new plugs in it and now the light won’t turn off. I’ve restarted the engines and batteries several times. Thought it was the coil on #3, so I installed a new one and that stopped it for a minute, but the light came back on and hasn’t turned off since. I was going to change the oil today, but assuming that doesn’t work I’m out of ideas. Anyone have any?
 

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