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    Code 44: cannot detect knock sensor

    Hi, I have a Sea ray 270 Sundancer with a Mercruiser 7,4 MPI (MEFI-3) modelyear: 2000 I just scanned my ECM and found this error code. I cleared the code and ran the boat and the alarm goes off again. My engine alarm goes off between a few seconds and a few minutes of going on plane above...
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