Well I bought my truck with a chip, didnt know the tunes. Well I got lucky, and the chip started acting up so I called ts performance and they were great they said if they can't figure out the problem they will replace it. About 1-2 weeks after i sent it in, I recieved a brand new chip, and a card with positions stock,hi idle, 50,75,100,140
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Ford Powerstroke Diesel Forum
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