***BMW ECU programming solution*** OPEN DISCUSSION inside please

oh yes and evil star i can send you my bin file if youd like to host that as well if anyone ever needs a stock 323 map..just pm me

Originally Posted by ritos530i

So how you know what part of the map you are looking at. For example which part of the map is for fuel and which for timing.
I have this as well and my file but don't understand what's what.
I spent hours on it and can not figure out anything.
maybe you would be interested in explaining what part of the map we are looking at.
Rito

Rito i think you want this...im tired though so ill look at it when i wake up...
http://www.chiptuners.org/forums/viewtopic.php?t=132

Thanks i will be looking over things tonight and report back if i figure anything out.

Hey has anyone made any head way?...I haven't ive been to busy with my motorcycle

damn this thread is sorta dieing isnt it? ive been so busy i havent checked it in a while. raymond ill PM you my email addy for that file so i can put it up on the site.

Hey Evilstar I sent that email a while ago did you get it?

Anyone else have any time to work on this??

+1 bump this thread

Tuning BMW obd2 ecus is not that hard, problem is having proper software that will take your downloaded flash and display proper maps and then calculate proper checksum when you change the data on the desired maps. People in europe are already flashing their bmws all the time, I got various euro tunes, but here is US I haven't found any so this tells me that BMW community is not up to the task yet.
I have been tuning nissan and bmw ecus for 8 years now, all tho I don't have an OBD2 bmw I am willing to help the community but you will have to help me too with information.
If someone has a stock flash, and tuned flash file, I could compare the files and in that case make a definition file for tunerpro software, this was the same version of software can be tuned any way you like. Problem is that there is too many versions of stock software and the definition file would have to be made for each version of ecu and version of ecu software.

In this example lets take raymond3080 stock (Ms43) ecu downloaded flash, it is 64kb size but the full flash in that ecu is about 4096kb, a huge file that would take hours downloading from the ecu, so I asume galletto just lets you download the good stuff portion of the file and that is map area. raymond3080 software version is 430064 and that is very important to put down and the flash file should be designated as (.bin) file. Some people say that they can't download the flash that is stops at some point, and some can't even flash it back. This is because the ECU requires minimum of 12.7volts and the car battery is about 12.3v even less if it is left for few minutes with key on engine off to dowload the flash. The uploading the flash requires even more voltage to properly flash it, this is why bench flashing is recommended with about 14 volts on tthe ecu using special made adaptor and voltage supply unit with minimum of 500mah.

From my experience with OBD1 bmws files I was able to find some maps in the raymond3080 stock file and I have made definition file for tunerpro software. I would have to see the comercialy tuned flash of the same version of software to know more.

So for now you can see some maps in raymond's file, go to tunerpro.net and download the software tunerpro for free, then load the XDF file, that is definition file then load the raymond's file, you will need to search "all" files sense raymond made his file a .dat instead of .bin

This forum does not let me post Zip files so PM me and I will send you the file.

screenshot of tunerpro and XDF file displaying raymond's stock file



or

http://www.photodump.org/stored29/raymondsms43.jpg

so its matter of creating XDF file for OBDII cars then open it in tuner pro and we have full access to the maps ???

Originally Posted by cbertiuk

so its matter of creating XDF file for OBDII cars then open it in tuner pro and we have full access to the maps ???

Yes. Proper XDF file would make it easy and simple.

HakenTT,
Thank you for your excellent posts. They have been extremely helpful. Instead of sitting around waiting for Jim Conforti to release Shark Edit (the software equivalent of "Waiting for Godot") we now have something we can work with.

It's not too difficult locating the maps with tuner pro but tuner pro will only find the maps with no labels... my question is how do you know what each map is for since tuner pro doesn't tell you??

Would it me possible to remove the original eprom and solder a socket onto the board?? This would make future tuning much easier...may even be able to use ostrich to tune on the fly.

Originally Posted by sikdogg

It's not too difficult locating the maps with tuner pro but tuner pro will only find the maps with no labels... my question is how do you know what each map is for since tuner pro doesn't tell you??

Would it me possible to remove the original eprom and solder a socket onto the board?? This would make future tuning much easier...may even be able to use ostrich to tune on the fly.

Tunerpro is universal tuning software it will not find you any maps it does not have search structure. I am using special software made for japanese car ecu developers to find map structures in the code. Then based on my experience with OBD1 bosch ecus I am able to ID most of the maps. I am using ostrich2 emulator in my obd1 bmw and it works great. When it comes to OBD2 some ecus are chippable if not all, but the chips are too big(1mb) for ostrich2 emulation and I don't think obd2 likes emulation anyway.

Sorry, you're right... tuner pro is just used for modifying the maps. Are you using WinOLS to find the maps??

This is a very good thread... I have no idea how to do any of it, but I'm certain there will finally be a way to get good software updates for our 330i's.

I'm shocked a "sponsor" hasn't complained about this "free flowing of ideas" and had the moderator banish it.

Originally Posted by sikdogg

Sorry, you're right... tuner pro is just used for modifying the maps. Are you using WinOLS to find the maps??

No, winols is expensive, confusing, not user friendly, so because of that it is out of question for basic tuner who wants to do things on a budget.

Will you share what program you are using to find maps??

Originally Posted by sikdogg

Will you share what program you are using to find maps??

Maps won't do you any good, you got to know what they are for, and you still cannot make any changed without proper checksum calculations, I found all the maps in the code but that does not do me any good, I need to know what maps are usable for a tuner and just use those maps, tipical OBD2 ecu will have somewhere close to 200 maps but tuner only tunes about 5 maps, LOL. Thats why I am here to at least make one DME tunable. But seems like there is no people interested nor have the ability to flash their DMEs. Most of people just like to send it somewhere and pay for the flash, they don't want to deal with it.

Glad to see your here to help HakenTT and thanks ...but those files are not mine my file is actually 32kb for the MS42 ECU which comes with the 323ci...The file you have is Dennys which is MS43 and 64kb in size...now a question i have is with your software would you be able to pick out the maps between now the two stock ecus...as i only wish to take the 330 maps and put them on the 323 ecu...