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    150 Four Stroke MAP sensor

    Thank very much. That’s what I suspected. And yes, I have a good AGM battery, which I installed when we bought the boat and it was not equipped with one then, and I saw that it was supposed to be. I appreciate the assistance.
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    150 Four Stroke MAP sensor

    Thank you! 3B110878
  3. T

    150 Four Stroke MAP sensor

    Hi folks, I have a 2022 Mercury 150 four stroke outboard with just over 400 hours on it. Immediately upon our first launch this year, it began idling rough and then commenced with the six beep alarm. We returned it to the service department that commissioned it and changed the fluids, etc. They...
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