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I have 2004 f-150 5.4 and I purchased a edge elvo programmer I mainly wanted to improve gas milage. I have not been able to using the 4 levels that came with the programmer. I want to try to costume tune but get no help from edge. can some of you tell me what you have done to coustome tunei
FWIW, even after custom tunes, your chances of increasing your MPG are 50-50 (at best). If you do see an increase, it probably won't be any more than 2 MPG.
And don't use the lie-o-meter to compare before and after MPGs. Break out the pencil and paper.