Thread: FICM reprogramming will it help my truck.?
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Old Fri, November 26th, 2010, 08:23 PM
Farmer11 Farmer11 is offline
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It should improve your mileage doing both. I was right around that area with my 03 auto and it bumped it up to nearly 17mpg. Bill can remotely do both the ecm and ficm.
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