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  1. #1

    Join Date
    Jul 2007
    Location
    Huntsville, AL
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    29

    FX HO Cylindere filling with gas.

    Got a 2005 FX HO project. Cylinder #4 is filling with raw gas to the point of hydro lock. Injector is pulsing. Also swapped injectors 2 & 4 and #4 still floods with gas.

    Could this be the idle air bypass motor?

    Any ideas?

    Thanks in advance!


  2. #2
    TennR600's Avatar
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    Jan 2010
    Location
    Nashville, TN\Boynton Beach Fl
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    173
    Any more details. When while running or not, Mods to system. What type of project? I cannot think of any reason for this problem.

    Roy

  3. #3
    Briangsxr1000's Avatar
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    May 2010
    Location
    Buffalo, NY
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    114
    Is the engine misfiring on that cylinder? If you have no spark it will just fill cylinder with fuel....

  4. #4

    Join Date
    Jul 2007
    Location
    Huntsville, AL
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    29
    Ok for any interested. Here's the solution. The injector #4 fires constantly! Soon as the fuel pump starts this sucker is a bird fountain. Hooked up to YDS and tried to test fire injector #4. No clickety click. Tried to fire 1,2,3.... clickety click on all. Swapped #3 and #4. Tried to fire #4. No clickety click. That means the output from the computer is (i bet its an SCR output) is shorted.

    need to replace computer/ecu/




    Quote Originally Posted by ehiebert View Post
    Got a 2005 FX HO project. Cylinder #4 is filling with raw gas to the point of hydro lock. Injector is pulsing. Also swapped injectors 2 & 4 and #4 still floods with gas.

    Could this be the idle air bypass motor?

    Any ideas?

    Thanks in advance!

  5. #5
    Briangsxr1000's Avatar
    Join Date
    May 2010
    Location
    Buffalo, NY
    Posts
    114
    wow....good to know...

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