I think Bill's going to have to answer this one. I do know though, if it shows "0", you are at "stock". I suppose the "stock" that Bill gave you is superior to the one that was on the PCM when it came from the factory. There ARE changes to the stock tunes that come up as a vehicle ages. If Bill gave yu a later version than the one you had, perhaps it is superior.
- Jack
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2024 F150 Platinum SCrew 3.5L PowerBoost FX4, Peragon Tonneau Cover, LineX Bed, 35% Window Tint on All Sides and Rear, Full Nose Paint Protection Film, Husky Mud Guards, Lasfit Floor Liners, VIOFO Dash Cam
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