The simplest way to tell is to plug in the Gryphon. If it boots normally and shows your hex code, you're probably fine in the "flash" department. However, if it does not seem to recognize your truck, then the truck was almost certainly flashed. If this is the case, Bill can return it to stock for a fee ($75 I think). And, your tunes will have to be completely rewritten, at the normal cost for tunes.
But, if it's been flashed and doesn't run right, you need to return it to the "garage" and tell them to fix it. It sounds like something is still screwed up and a "tune" will not correct whatever they've messed up.
- Jack
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2014 F150 Platinum SCrew 3.5L EcoBoost 4x4 with SCT programmer
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