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Re: Tune Number
- Subject: Re: Tune Number
- From: "Neil Lindsey" <neil@xxxxxxxxxxx>
- Date: Mon, 19 Jun 2000 14:56:34 -0700
Since I have now spoken to several other dealerships I think I'm getting
closer to an understanding of what is going on with the Gameboy and FI
tunes. I have taken the liberty in the following desciption to fill in some
blanks myself, so it is entirely possible that I may not have all the facts
I understand that new tunes are distributed by Triumph via e-mail. To
enable the Gameboy to accept these new new tunes the ROM in the Gameboy also
must be updated. I am assuming that the tune data itself is encripted and
that an updated Gameboy ROM allows it to be de-cyphered. That way Triumph
can (hopefully) prevent unauthorized use of the tune data. I'm told that
the Gameboy ROM actually uses Flash memory, but that may be irrelevant,
since Triumph apparently ships updated ROMs directly to each dealer. I am
assuming that the ROM is only updated after a major release (eg. version 9),
and that there is therefore no need to update this ROM for each individual
new patched tune that may be released under a given version. Maybe some
dealers just don't want to revert to older ROMs to enable loading tunes from
Personally I don't believe that the ECU on the bike cares what tune is being
downloaded, but theoretically it could be controlled there as well I
suppose. I can see situations that might arise where an older tune is
desirable, but maybe Triumph disagrees.
Please feel free to correct me if any of the above is incorrect.
- ----- Original Message -----
From: "Archer, Doug" <DArcher@xxxxxxxxxxxxxxx>
Sent: June 18, 2000 7:45 PM
Subject: RE: Tune Number
> >older tune (even the same one as before) if a new tune doesn't work out.
> >That didn't seem to be the case for this dealer. Any comments? I =
> >would have assumed that the older tunes would exist on a disk somewhere.
> The game boy tag is very applicable. The tunes are sent in ROM
> cartridges. All the dealer has to do to load an "old" tune is pull
> out the current cartridge and plug in the old one.
> >Lastly, I read today on the T5 list that the engine must be within a =
> >certain temperature range (85-90 deg C) or the download may not work =
> The temp range is only for changeing settings. ie co level etc.
> >him to check the CO setting (in fact maybe he did), but I'm not sure if =
> >he's using te latest recommendation for that setting either (hence my =
> >other post asking for that info). He certainly didn't use any exhaust =
> >gas analyzer. I figure I should lay off for a bit until I push this =
> If he's not using a CO analyser he is not setting the CO level correctly.
> The CO number in the Game Boy is for reference only. It even varies
> between bikes of the same model.
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