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The TUNE does not get lost... only those dynamic things like I mentioned, things that have to be relearned over time/driving... yes, disconnecting a battery resets all of those "adaptive learning" items like that... always has...
 

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Discussion Starter · #24 ·
K quick update, I took a chance on hot dry pavement hitting the 4wd auto for the first time in 3 years and drove in 4wd auto for 10km. I took many turns at various speeds up to 90kph. I even went through a parking lot. No issues. Just want to say thanks to Diablo for this new to me ability! I needed the tuner just to tell my computer of the gear and tire changes and now my entire t case works properly. I could have spent alot of money redoing the gears but the Diablo tuner did it for a fraction of the money.
 
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