needing help with new motor

Discussion in 'Fox 5.0 Mustang Tech' started by blackcrow_75, Sep 9, 2011.


  1. blackcrow_75

    blackcrow_75 New Member

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    just got my 2001 explorer motor stock bottom end heads and intake are ported and matched . e303 cam 1.6 roller rockers 75mm tb with a 76mm mass air cal for 24S and 24lbs injectors with a 255 in tank fuel pump. i start fuel pressure at 40psi runs way to lean i have the pressure up to 55psi. now does lot better but sucks at w.o.t ran codes all it come up with running at lean limit.pulled the plugs there are white as ghost do you all think i need bigger injectors and running a a9l ecm. thanks all
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  2. 2002BLGT

    2002BLGT Well-Known Member

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    Take it to a tuner and get it tuned , calibrated MAFs are never 100 percent accurate
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  3. blackcrow_75

    blackcrow_75 New Member

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    tuner close to me

    does anybody know of a good tuner close to me im in chillicothe ohio 45601
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