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'95 fmu install

Posted by 95'RS-T, Jun 17, 2009

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  1. 95'RS-T

    95'RS-T Proven Member

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    Germansville, Pennsylvania
    I'm getting a 12:1 FMU soon and i need a diagram on how to hook it up on a '95 eclipse from the FPR or where ever would be the easiest install. I was reading the install differs from the model years.
     

    464  0

    1995 Mitsubishi Eclipse GST
    · 2G DSM
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  2. LD25Delta9

    LD25Delta9 Proven Member

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    Ft. Wayne, Indiana
    If you got one worth a damn, it'll have a diagram with it. If not, the fitting that comes out of the flat side of your FMU should run to your rail and the other (rounded side) to your filter. The 95-96's have the FPR on the rail. Next time do some searching. I know it's a pain, but this site has a ridiculous wealth of knowledge on it if you can stand to sift through all the BS threads.
     

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    1997 Eagle Talon N/T
    manual · 2G DSM
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  3. 95 'clipse RS

    95 'clipse RS Proven Member

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    Joined Nov 2, 2004
    Erlanger, Kentucky

    994  0

    1995 Mitsubishi Eclipse N/T
    16.115 @ 82.720 · 2G DSM
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  4. kergilman

    kergilman Proven Member

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    Joined Oct 25, 2007
    Portland, Oregon
    Is it the cartech one like this?

    fmu2020.jpg
     
  5. VelocitàPaola

    VelocitàPaola Moderator

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    Ft. Lauderdale, Florida
    Yes.
     

    2K  21

    1995 Mitsubishi Eclipse N/T
    manual · 2G DSM
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  6. 95'RS-T

    95'RS-T Proven Member

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    Joined Mar 10, 2009
    Germansville, Pennsylvania
    I have a new question and I been thinking about the 2 lines that come in on top of the tank the one on the left is the feed, and the one that slides on to the right is the return correct? EDIT: (If your looking at the lines from the drivers side back seat)
    If I'm correct why couldn't I just T my FMU right there at the return line, and add a vac? Heres a Pic I did in ms paint just so no one is confused, or do i hook it up on the return line on the tank itself?
     

    Attached Files:

    • fmu.jpg
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    464  0

    1995 Mitsubishi Eclipse GST
    · 2G DSM
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  7. kergilman

    kergilman Proven Member

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    Joined Oct 25, 2007
    Portland, Oregon
    I don't think that would work. Your FMU looks to be pressurizing the fuel tank via the return line. Where does your FPR fit onto that diagram above?
     
  8. 95'RS-T

    95'RS-T Proven Member

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    Germansville, Pennsylvania
    see I don't know. I thought I was hooking the FMU to the return line on the fuel pump cover so, i hooked it up in the back and tapped the vac source from the fpr. Should I just install it on the engine bay?.
     

    464  0

    1995 Mitsubishi Eclipse GST
    · 2G DSM
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  9. Turbizmo

    Turbizmo Proven Member

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    Joined Jul 3, 2005
    Salinas, California
    is this a SFMU or FMU
     

    446  0

    1997 Mitsubishi Eclipse N/T
    manual · 2G DSM
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  10. 95'RS-T

    95'RS-T Proven Member

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    Joined Mar 10, 2009
    Germansville, Pennsylvania
    no its a vortech 12:1 FMU
     

    464  0

    1995 Mitsubishi Eclipse GST
    · 2G DSM
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  11. VelocitàPaola

    VelocitàPaola Moderator

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    Ft. Lauderdale, Florida
    That's basically an FMU.
     

    2K  21

    1995 Mitsubishi Eclipse N/T
    manual · 2G DSM
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  12. VelocitàPaola

    VelocitàPaola Moderator

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    Ft. Lauderdale, Florida
    Just install it like this (configuration #1 for a return type system, configuration #2 for a more stock system)...

    FuelSystemswFMU-2.jpg

    It doesn't matter where it's physically located, as long as the hoses go to the right places.
     

    2K  21

    1995 Mitsubishi Eclipse N/T
    manual · 2G DSM
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  13. 95'RS-T

    95'RS-T Proven Member

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    Germansville, Pennsylvania
    ok thanks but the return line on the fuel pump cover is the one I want to hook it up to right? or is it the one on the tank itself? thanks all im really confused about thanks
     

    464  0

    1995 Mitsubishi Eclipse GST
    · 2G DSM
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  14. VelocitàPaola

    VelocitàPaola Moderator

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    Ft. Lauderdale, Florida
    Right.
     

    2K  21

    1995 Mitsubishi Eclipse N/T
    manual · 2G DSM
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  15. 95'RS-T

    95'RS-T Proven Member

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    Joined Mar 10, 2009
    Germansville, Pennsylvania
    alright then its hooked correctly Thank you so much
     

    464  0

    1995 Mitsubishi Eclipse GST
    · 2G DSM
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  16. Dstarperformance01

    Dstarperformance01 Proven Member

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    Mustang, Oklahoma
    I know this thread is dead but, I have a question to anyone that can help. My buddy bought a 420a that had the SFMU/FMU with it. It’s running lean and was curious as to how to address this or is there a problem? Thanks fo any help
     

    Street Build 2K  0

    1993 Eagle Talon TSi AWD
    automatic · 1G DSM
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  17. VelocitàPaola

    VelocitàPaola Moderator

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    Ft. Lauderdale, Florida
    It depends on how lean it's running. The FMU adds fuel at a linear rate, but engines don't necessarily consume fuel linearly, so the discrepancy would cause a lean or rich condition. I would probably start by checking the fuel pressure and AFR with a wideband O2 sensor. If the engine is unsafely running too lean, the FMU can be adjusted by changing discs internally, and the S-FMU can be adjusted by changing discs and/or tweaking a couple of valves.
     

    2K  21

    1995 Mitsubishi Eclipse N/T
    manual · 2G DSM
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    Dstarperformance01 likes this.
  18. silvreclips

    silvreclips Proven Member

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    Greenville, South Carolina
    Does he have a FMU or a SFMU? The FMU can only add fuel pressure on top of what the fuel regulator is set at. The SFMU can also adjust base fuel pressure.
     

    Autocross Build 610  1

    1998 Mitsubishi Eclipse N/T
    fwd · manual · 2G DSM
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    Dstarperformance01 likes this.

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