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Charles, Marine Mechanic
Category: Boat
Satisfied Customers: 3722
Experience:  US Navy (Ret) Certified Mercury Marine Tech with over a decade of repair experience.
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I have a 2006 Robalo 265 - Honda 225 Twin OB. On a low

Customer Question

HI - I have a 2006 Robalo 265 - Honda 225 Twin OB. On a low idle, after a few minutes I get a check engine warning, or sometimes it shuts the motor down. Runs perfectly under load. Just had lower unit and impeller done in the fall - problem persists though. Any suggestions? thanks
Submitted: 2 years ago.
Category: Boat
Expert:  Charles replied 2 years ago.
Hello, my name is***** you for allowing me to assist you today.
There is an old bulletin of the 225 that covers the exhaust tubes in the mid housing. There was an issue of then allowing water to get to the O2 sensors at low RPM. This would sound the alarm, and go away when the engine was sped up.
Do you know if yours has been done?

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