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air/fuel ratio

  1. 2000 mustang GT makes 180 hp!!! :( help I got dyno results

    4.6L Tech
    heres my dyno run.. with BAMA performance sf4 tuner... I made about 182hp max.. and my teacher said that this is because of the air/fuel ratio fluctuateing, why is it doing that? And this car has no vacume leakes at all I smoke tested it.. The tune I had on the car was * (race tune, 91...
  2. Air/fuel ratio spiking in a new Mustang, sometimes losing power.

    2011 - 2014 Mustang GT Tech
    This is the air/fuel ratio on a 2013 Mustang GT with about 600 miles on it, under moderate load (upshifting through the gears while coming to speed on the highway). Its been giving me trouble in that the ratio will shoot up, causing the check engine light to blink and engine to lose power...
  3. motor safety???????

    4.6L Talk
    so im going to order a sct canned tune with the x3 93 octane question is ive seen some controversy about them being unsafe for your motor causing your motor to run possibly to lean and damage your motory so would it be a good idea to also get a air/fuel ratio meter to keep check on it...