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Code 231

Bearsar240

Jet Boat Junkie
Messages
173
Reaction score
131
Points
147
Location
Menomonee Falls, WI
Boat Make
Yamaha
Year
2015
Boat Model
AR
Boat Length
24
[USERGROUP=9]@HELP[/USERGROUP] Does anyone know what the self Diag code 231 is?
 

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[USERGROUP=9]@HELP[/USERGROUP] Needs to be in the body of the message. I don't know, but someone will.
 
Yeah thats all I find too. It ran fine for 4hrs now it runs rough and engine shakes at idle. Lost 1000Rpm also. I was hoping a 02 since I fog the engines. 4star engine.
 
I will take any recommendations. I put 2 new batteries in after this alarm. I will start moving around checking engine grounds and so forth.
 
Is the code sticking around?

If so perhaps disconnect the batteries for 15 minutes to see if the codes will clear.
 
Yes sticks around, unhooked batteries. Start stop 5 times. I'll have to start checking it out otherwise take it in.......
 
Do you have a YDS? That looks like the shop manual first step... Might give you more info.
 
I need YDS 2.0. Found a guy that said he should have it next month. Anyone in WI that has it, I will gladly pay to scan for me.
 
I need YDS 2.0. Found a guy that said he should have it next month. Anyone in WI that has it, I will gladly pay to scan for me.
I had this code on my first trip out but mine ran fine. I tried all the reset things also with out success. I finally cleared it while trying to connect a can doo to read the codes because there wasn’t one one the screen. The directions said to disconnect port tach which was wrong for a 17. But while trying to do so and powering on the key the a few times the code cleared and I haven’t had it come back. If you’re idling rough I would suspect a spark plug or coil. I’ve since changed my plugs which I do every year and still no repeat.
 
Update on this finally! I have been having issues for a while and too stubborn to take in. Not sure someone would have been totally honest and not a parts changer. I have been a mechanic/service tech for 25yrs and have never seen clean cut wires inside insulation(seen a lot of wire issues). I think possibly the crimp tool Yamaha used cracked the wires and they finally gave.
Please note this was an intermittent no spark that caused the 231 ignition code.

Hope this may help someone!
 

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