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bf 2006 225hp engine light and alarm

max415

New member
Hi all ! First post here. I have 2006 bf 225 with 140 hrs of no problems until now. After running at cruising speed , when brought down to idle /trolling after a minute or two the engine light on my key switch comes on and alarm sounds at 1 second intervals. Checked and cleaned water separater, and this condition still occurs.
When this happens ,I notice that the engine seems to run rough but only for a second or two, like a slight growl and vibration. If it is the O2 sensor is it interchangeable with an automotive application ?
Thank you for any help !
 
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