any difference in 2018 vs 2020 ECM/TCM calibration??

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FordTechOne

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Forscan dev version or IDS , both will do it , forscan will allow back flashing to older roms. This is the non released dev version of forscan that support flashing.

Got it. Makes sense, since IDS doesn't allow you to revert to an older cal. Thanks for posting your results.
 

LeadFootLarry

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Is what @Crunchtime2k saying that we should be able to bring the truck into the dealer for an update/flash? I also have been plagued by a harsh shift in my 2020, 5-3 or 4-3, when in normal mode casual driving. It does it no matter if the truck is warm or cold. Would love the possibility of a remedy. 2/20 build date
 

FordTechOne

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Is what @Crunchtime2k saying that we should be able to bring the truck into the dealer for an update/flash? I also have been plagued by a harsh shift in my 2020, 5-3 or 4-3, when in normal mode casual driving. It does it no matter if the truck is warm or cold. Would love the possibility of a remedy. 2/20 build date

The dealer is instructed not to do any updates unless there was an associated service bulletin/message, which in this case there is not.
 

wac45

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Is what @Crunchtime2k saying that we should be able to bring the truck into the dealer for an update/flash? I also have been plagued by a harsh shift in my 2020, 5-3 or 4-3, when in normal mode casual driving. It does it no matter if the truck is warm or cold. Would love the possibility of a remedy. 2/20 build date
Did you ever get your harsh downshift to 3rd gear resolved? Mine is doing the same thing and my build date was 3/20. (2500 miles)

I haven't taken it into the dealer yet.
 
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