by Skipper Don

Volvo Penta RPM reading intermittent — drops to zero randomly while engine is running

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  • March 13, 2026 at 5:14 pm #327
    Skipper Don
    Keymaster

    I am getting RPM data through d3kOS most of the time but it drops to zero randomly — every 5 to 10 minutes — for about 30 seconds, then comes back. Engine is running fine the whole time.

    Hardware: Volvo Penta D4-260, CX5106, Pi 4B, d3kOS v2.0-T3.

    Is this a CX5106 USB power issue, a NMEA 2000 termination issue, or a Signal K timeout setting I can adjust?

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