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  1. #21
    Join Date
    Aug 2011
    Posts
    17

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    Quote Originally Posted by jmb View Post
    05's don't have check engine lights that I know of. Started in 06
    Is there an easy way to add one?

  2. #22
    Join Date
    Aug 2011
    Posts
    17

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    Does anyone know what the fuel pressure at the rail should be? Friend of mine said he thought 30lbs. So in this case I'm thinking fuel pressure regulator since I'm getting 60lbs at the shrader valve which according to my engine book should be what the fuel pump sends?

  3. #23
    Join Date
    May 2009
    Location
    North End Lake Lanier GA
    Posts
    8,155

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    Rail pressure at start up is 50-60 but the regulator doesn't do anything until the engine starts.

    Fuel pump charges the line, then shuts off.
    Once Started Fuel pump kicks on, and then Regulator Regulates.

    If you charge the fuel line and then let the fuel out of the line with the valve, the pressure does not return...Until you cycle the key on and off again

    If you have the engine running and press the valve the fuel pressure does not drop, because the regulator allows more fuel through it.
    Malo <--- Means--Evil or Mean One. This explains a lot.
    2013 Mojo 2.5 Skylon Tower. Bestia < Beast >
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  4. #24
    Join Date
    Dec 2006
    Location
    Tuscaloosa, Alabama
    Posts
    815

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    I wouldn't want a check engine light. That whole set up is just another pain in my book
    Jack Beams
    '05 Outback DD
    325HP EFI Indmar

  5. #25
    Join Date
    Aug 2011
    Posts
    17

    Default

    Quote Originally Posted by mmandley View Post
    Rail pressure at start up is 50-60 but the regulator doesn't do anything until the engine starts.

    Fuel pump charges the line, then shuts off.
    Once Started Fuel pump kicks on, and then Regulator Regulates.

    If you charge the fuel line and then let the fuel out of the line with the valve, the pressure does not return...Until you cycle the key on and off again

    If you have the engine running and press the valve the fuel pressure does not drop, because the regulator allows more fuel through it.
    So the pressure should drop to thirty when engine starts?...if the regulator is bad then would to much pressure to the injectors cause the motor to shut down?

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