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  1. #1

    fuel pressure for an 04 STF12f

    Okay, in a previous post I asked about cleaning the fuel system on a 12f. At that point I was told that the first thing to do was to check the fuel pressure coming off the rail. Well, took me a few weeks to have the time... although just did...

    I am showing 75 psi coming off of the rail (from the return port in the front)... so, you guys tell me... is that about right??


  2. #2
    Take the time to smile sirbreaksalot's Avatar
    Join Date
    Jun 2007
    Rockwall , Texas
    Fuel Pressure (High Pressure Line):
    Engine Idling approx. 294 kPa (3.0 kgf/cm², 43 psi) is what I have in my book


  3. #3
    My name is Sean and I am addicted to STXs smokeysevin's Avatar
    Join Date
    May 2008
    the accepted range stock is 43 when the button is pressed 38 to 41 while running if my memory serves me correct.


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