FMU question

Discussion in 'Fox 5.0 Tuning' started by 1993 stanglover, Aug 27, 2009.

  1. 1993 stanglover New Member

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    I just bought a 1993 GT and it came with a paxton SN92 blower with a FMU installed. I think that the FMU is causing a fuel pressure problem. Every so often my fuel pressure gauge jumps between 40 and 60 PSI. I can feel the jump in the engine so i know it is not just the gauge acting up. Some one told me that the FMU is really not necessary and I wanted to get a second opinion on this. Any help would be greatly appreciated. :D
    1993 stanglover, Aug 27, 2009
    #1

  2. strtrcr50 New Member

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    With bigger injectors and a tune, a FMU is unnecessary.
    strtrcr50, Sep 3, 2009
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