Volvo 8.1 OSI-DF Random misfire

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  • The Main ExchangeThe Main Exchange Member Posts: 280 ✭✭✭
    Latest, advised to remove the injector and coil harnesses and have those checked. Pins removed from plastic connectors and check for wear or bad connection. Refit harness then diacom hooked up to engine and take some logs etc... 

    2007 300 EC, 350 Mags, B3's, Table Rock Lake, MO

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  • Michael TMichael T Member Posts: 7,241 ✭✭✭✭✭
    Maddening! Good luck this time! 

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  • The Main ExchangeThe Main Exchange Member Posts: 280 ✭✭✭
    Thanks MT. Hopefully this will find something. We are having some pretty good weather so the boat looking sorry for itself in the slip is not working!! Hopefully this thread may help someone else in the future.

    2007 300 EC, 350 Mags, B3's, Table Rock Lake, MO

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  • F1100F1100 Member Posts: 292 ✭✭✭
    Have you checked the coils with a multi meter yet? Have you checked the injectors yet with a multimeter?


    1993 300 FIESTA VEE TWIN 5.7L ALPHA GEN 2
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  • The Main ExchangeThe Main Exchange Member Posts: 280 ✭✭✭
    @F1100 new coils, plugs, wires. Ran totally fine on Tuesday going to check the harnesses and the injectors tomorrow. The problem was there from cold before now seems to be only when hot on Sat. This is getting old but going to finish the ohm checks tomorrow. 

    2007 300 EC, 350 Mags, B3's, Table Rock Lake, MO

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  • The Main ExchangeThe Main Exchange Member Posts: 280 ✭✭✭
    We have ran the boat 2 times with no faults so I guess it could've been a coil or injector harness connection. Thank you for all your help.

    2007 300 EC, 350 Mags, B3's, Table Rock Lake, MO

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  • MarkBMarkB Member Posts: 4,009 ✭✭✭✭✭
    Sounds good. As they say "hold thumbs" that it keeps working!

    Boat Name: King Kong

    "Boat + Water = Fun"

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  • Michael TMichael T Member Posts: 7,241 ✭✭✭✭✭
    Hopefully the end of a frustrating journey! 
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  • The Main ExchangeThe Main Exchange Member Posts: 280 ✭✭✭
    No kidding hopefully this post may help someone in the future.  

    2007 300 EC, 350 Mags, B3's, Table Rock Lake, MO

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