Evo X ECU disassembly

[scheides]

So the openport cable that you use to connect your laptop to the evo X is not complete yet but someone in europe got a copy of their ROM somehow. They took it upon themselves to leak it to the community sometime Friday night, and uh, it's pretty well disassembled already! :D :D :D

Items of note:
multiple mivec maps (intake and exhaust cam)
3d boost tables (tps vs pressure)
boost based on bar (i.e. pressure, not load!)
LOTS more room for ecu hacks in this rom :)

It is truly amazing how quickly a global community of enthusiasts can crank through something like this.

3d boost(target is in bar, 1bar =14.5psi):
http://www.norcalmotorsports.org/users/bryan/mods/EVO/tech/EVO10_tables/boost_target_tps_bar.gif

intake Mivec:
http://i290.photobucket.com/albums/ll264/EFIxMR/mivecloadrpmoffset.jpg
exhaust mivec:
http://i290.photobucket.com/albums/ll264/EFIxMR/evomivecex.jpg

Timing:
http://i290.photobucket.com/albums/ll264/EFIxMR/loadoffset.jpg

Fuel:
http://i290.photobucket.com/albums/ll264/EFIxMR/fuelrpmloadoffset.jpg

Link to one of the theads:
http://forums.evolutionm.net/showthread.php?t=350093
and
http://forums.openecu.org/viewtopic.php?p=18064#18064

[FattyBoomBatty]

Sweet.

[merkzu]

Having the rom hacking guys around is one of my favorite things about having an evo

[Shane@DBPerformance]

Now we just have to wait for the cable to come out and then for them to figure out how to read/write to the ECU. Finding maps in a ROM isn't the hardest thing ever. There is graphical hexediting software to help you find patterns that stick out(maps) unlike code which normally just looks like random static.

[scheides]

Yes, but having this out of the way for when the CAN interface becomes available will really speed up the process. This is a EUDM rom, so it is a sure bet the USDM one(s) will be slightly different. But figuring out all the scaling and oem algorithms is something that could take a while, especially if/when tephra-like mods like NLTS and map switching start to become a reality.

I guess they're having some issues with the disassembly codec, it is not a standard one that they can find.

Tactrix cable is gonna be out soon, and then reading/writing the rom from there won't be far off. I bet you will be doing evo X tunes by July, shane....and they will be ho-hum for you come September.

[Jakey]

Has there been any discussion regarding if/how well Mitsu is following SAE J1939?

[Goat Blower]

I'm guessing the EUDM code is healthier than the USDM code will be, so simply cutting and pasting that code will probably reap some benefit.