Quote:
Originally Posted by XPerties
Just a shot in the dark but since you removed a power source maybe when you hooked the battery back up it reset.
Have you tried to program back to stock and then reprogram back to your custom tune?
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I did an engine swap going from a 4.6 to a 5.4 and Bill wrote a stock for the truck to think it was a 5.4 then he wrote the custom tunes for the 5.4. So the stock tune is also written by Bill.