questions about hypertech power programmer III
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04 f-150 lariat
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Join Date: Apr 2009
Location: Killeen, Tx
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questions about hypertech power programmer III
I just purchased a 2004 f-150 lariat supercab and it came with a power programmer. I tried to program it for better gas mileage but what I'm doing just isn't working. What am I doing wrong? The truck has 20" rims on it.