Ecu
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Joined: May 2012
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From: CARDIFF UK
Ecu
Does a modern day ECU keep a data log of any changes made to it. For example if I fitted a FP3 and uploaded a new map to the ECU and then returned to original factory map to the bike would the ECU record it? If it does is it easily visible to the technician when he is working on the bike?
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Road Master
Joined: Dec 2016
Posts: 956
Likes: 144
From: Old Bridge, NJ
Does a modern day ECU keep a data log of any changes made to it. For example if I fitted a FP3 and uploaded a new map to the ECU and then returned to original factory map to the bike would the ECU record it? If it does is it easily visible to the technician when he is working on the bike?
Thanks
Thanks
Cruiser
Joined: Nov 2006
Posts: 164
Likes: 22
From: Perth
What age of bike are you talking about ? As far as I understand it , the older Twincams had no telltale dramas to worry about.
The "new" M8's on the other hand well that's a diferent ball game. Apparently it can be told by the HD dealer Digitech computer that "mods" have been done.
In the "olden days" only TTS could return your bike to stock calibration tunes. There may be others more recent but I don't use them personally.
The "new" M8's on the other hand well that's a diferent ball game. Apparently it can be told by the HD dealer Digitech computer that "mods" have been done.
In the "olden days" only TTS could return your bike to stock calibration tunes. There may be others more recent but I don't use them personally.
Seasoned HDF Member
Joined: Aug 2008
Posts: 5,071
Likes: 1,006
depends?
some ecu's do not have a history file
some only gives data for time stamp when the flash was made, they cannot tell if it was flashed by a particular devise.
sometimes left over data is transferred and can hang around so it is best to purge the ecu
if you go to a dealer, and they ask, could always say you had issue on the road and it was flashed by "X" dealership
some dealerships are hard ball and some are not
i ride gravity, never fails
some ecu's do not have a history file
some only gives data for time stamp when the flash was made, they cannot tell if it was flashed by a particular devise.
sometimes left over data is transferred and can hang around so it is best to purge the ecu
if you go to a dealer, and they ask, could always say you had issue on the road and it was flashed by "X" dealership
some dealerships are hard ball and some are not
i ride gravity, never fails
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HD EFI Guru
Joined: Jan 2008
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Does a modern day ECU keep a data log of any changes made to it. For example if I fitted a FP3 and uploaded a new map to the ECU and then returned to original factory map to the bike would the ECU record it? If it does is it easily visible to the technician when he is working on the bike?
Thanks
Thanks
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