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  1. #1

    Lightbulb Volvo Penta 5.7 GXI-G Issue With Injectors Stuck Open

    Hi All,

    I'm trying to locate the issue with my 2006 Monterey and its Volvo Penta 5.7 GXI-G, I'm thinking its a short in the wiring loom or bad earth or even a faulty ECU. The ECU part is a 3818613 and they are hard to find to be able to test it.

    Issue is, I have injectors 3 and 5 staying open and flooding those cylinders.

    As i understand, the ECU will fire 4 injectors at a time, the other two injectors are pulsing fine, and the other 4 are also ok. just 2 of the eight staying open and hydrolocking the engine with fuel.

    I have had the injectors cleaned and tested, also swapped them around and same issue.

    Before i go out and purchase a new ECU, is there anything else i can test / check?

    by chance does anyone have a wiring diagram also??

    Totally out of ideas and need your help,

    Thanks LukeGC

  2. #2
    Join Date
    Apr 2018
    Location
    NW chicago area
    Posts
    9

    Default Re: Volvo Penta 5.7 GXI-G Issue With Injectors Stuck Open

    Disconnect the ecm.If the injectors still stick open you have a short to ground on the injector control side.If the injectors stop spraying after you disconnect ecm then its most likely the ecm.

  3. #3

    Default Re: Volvo Penta 5.7 GXI-G Issue With Injectors Stuck Open

    Thanks Stach, Will give it a go , hopefully its not the ecm

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