tuning question

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cableguy_hd

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2020 Ram 2500 CTD
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6.7 Cummings
If you install a canned tune and then use the tow/haul button what does that do with the tune?
 

MADDOG

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Nothing. Tow haul works just fine and the tune works fine. There's no trans tuning to speak of with the programmer.
 
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