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  1. #1
    Member jimscia's Avatar
    Join Date
    Jul 2007
    Location
    Owasso, Oklahoma
    Posts
    158

    Question Adding auto bilge pump?

    Bought 2019 z19, came with manual bilge pump. I would like to add a rule auto bilge 3 wire pump. Would like to use current touch pad controls, do not want to add another switch, and I do not trust float switches.

    I have checked all over the internet, and the pinned forums above for wiring diagrams show a brown/red wire for auto bilge pump.

    The question I have is the ecm pinout. Where would the brown/red wire hookup to the ecm?
    2019 nitro z19 with mercury 4 stroke 200hp.

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  3. Member
    Join Date
    Jul 2017
    Location
    Lower, Alabamer
    Posts
    216
    #2
    I just re-wired my boat ('08 Z9) and while mine already had the auto bilge pump, I noticed that the factory wiring harness had a lot of extra wiring. Look in the bilge area and find the main wiring harness. You may need to open up some of the wiring looms. Sometimes the factory uses the same harness for many of their boats and your harness may already have a plug for auto bilge pumps tucked into the wire loom. Worth a check anyway. Good luck!

  4. Member jimscia's Avatar
    Join Date
    Jul 2007
    Location
    Owasso, Oklahoma
    Posts
    158
    #3
    I looked, opened looms, no extra wires....

    Just going to ring out the ecm, there are a couple of open pins.
    2019 nitro z19 with mercury 4 stroke 200hp.