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  1. 06-12-2018, 06:09 AM #1
    prepsdk
    prepsdk is offline
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    ECU/PCM submerged - not working - repair?

    Hi,

    I have bought a Mercury 40 hp 4-stroke that was fully submerged in brackish water for about 12-24 hours. Depth was around 3-5 meter.


    The outboard was brought to a dealer for cleaning immediately after it was raised above the water.


    According to the dealer, the PCM/ECU needs to be replaced.

    Would it be possible to check and repair this PCM/ECU?
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    Thanks

    /Martin

    Askeladden 635 Freestyle
    Mercury Verado 300
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  2. EuropeanAM
    EuropeanAM is offline
    Mercury 3L/4 Stroke/Verado Moderator EuropeanAM's Avatar
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    #2 06-15-2018, 02:12 PM
    I would recommend you simply replace it. Odds for longevity (even if it could be repaired) are very low.


    Dual Mercury Master Technician- for Mercury Outboards, Mercruiser and Mercury Racing at European Marine in Greenville, SC.
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