Hi guys,
I am currently working on the Audi RS2 bin definition. I am trying to find all maps and the most important what they mean.
First of, you need to download these softwares (the second one is optional):
http://tunerpro.net/
http://www.atlllc.com/atlantis.php?p...ronic%20Editor
After you downloaded the Tuner Pro software, you can download these two files, the first is the XDF file for Tuner Pro and the second is bin file for fuel and ignition.
http://www.uploading.com/files/UKVPL5JR/RS2.xdf.html
http://www.uploading.com/files/Z56MZ..._551c.bin.html
Open Tuner Pro, and then open the RS2.xdf file and after the Fuel_IGN_ADU_551c.bin file.
Now here are some points:
1. Just take into account the table definition on the left. As flags and constants I lived from one of the definitions that came with tuner pro. I did that just to give me an idea what to look for.
2. These are what I found regarding location in decimal format:
- 58 : RPM
- 63 : LOAD
- 56 : ? I think has to do with ECT
- 55 : ? I think it might be the IAT
- 48 : ? not a clue
- 54 : ? not a clue
- 46 : ? not a clue
- 93 : ? not a clue
- 137 : ? not a clue
- 75 : ? I think it might be something related to the MAF, due to one of the curve shape
3. The motronic uses the following method for RPM:
58 - 4 - 25 - 25 - 25 - 156
That means 58 RPM location, 4 means there are 4 RPM points, to calculate the RPM does as follow: (256 - 156)*40 = 4000RPM so the last RPM value is 4000RPM.
After you calculate the other values by multiplying it by 40 and subtracting from the last value, so 25*40 = 1000RPM, so the table is 1000 - 2000 - 3000 - 4000 RPM
4. I dont know the constant for the LOAD value, I simply use the motronic editor from Atlantis which calculated the values for me but I cannot garantee it is correct.
5. The fuel value in Part throttle is calculated dividing the value in decimal format by 128, so a value of 128 equals to 1, that means no fuel trim is made. If the value is 140 that means 140/128 = 1.09375 or 9.37% more fuel is added.
So this is fuel trim table, how the fuel is calculated I dont know at the moment. But it might just use some internal formula regarding the various inputs.
6. The ignition value I also used the ones from motronic editor, which I am almost certain is wrong, but I decided to left it. Until I find where are the constants for it. But for what I have seen I am pretty close to the actual numbers.
So, if anyone can help me with the other definitions and the constants, I would appreciate. I dont know much about dissassembler, but if anyone can point me out one dissassembler that will give me some to work with, even I am a noob in this I will have a go.
I still have to find where are the constant values (such as RPM limit, speed limit and others), I think I know where they are but I cant assure that while I dont have all the constants sort out.
Anyway I hope I can help someone else who might be trying to find the maps inside the Audi RS2. As you can see there a lot of them. There are even 7 ignition maps (prety close in values to each one), and to my understanding it has to do with the quality of the fuel your are using, then the ECU chooses one of these maps.
Regards.
PS: I starting doing this because here I thing not many people know what maps they are changing, put aside how much they should change as each ECU (marelli, motronic, delco) have different approaches.
I am currently working on the Audi RS2 bin definition. I am trying to find all maps and the most important what they mean.
First of, you need to download these softwares (the second one is optional):
http://tunerpro.net/
http://www.atlllc.com/atlantis.php?p...ronic%20Editor
After you downloaded the Tuner Pro software, you can download these two files, the first is the XDF file for Tuner Pro and the second is bin file for fuel and ignition.
http://www.uploading.com/files/UKVPL5JR/RS2.xdf.html
http://www.uploading.com/files/Z56MZ..._551c.bin.html
Open Tuner Pro, and then open the RS2.xdf file and after the Fuel_IGN_ADU_551c.bin file.
Now here are some points:
1. Just take into account the table definition on the left. As flags and constants I lived from one of the definitions that came with tuner pro. I did that just to give me an idea what to look for.
2. These are what I found regarding location in decimal format:
- 58 : RPM
- 63 : LOAD
- 56 : ? I think has to do with ECT
- 55 : ? I think it might be the IAT
- 48 : ? not a clue
- 54 : ? not a clue
- 46 : ? not a clue
- 93 : ? not a clue
- 137 : ? not a clue
- 75 : ? I think it might be something related to the MAF, due to one of the curve shape
3. The motronic uses the following method for RPM:
58 - 4 - 25 - 25 - 25 - 156
That means 58 RPM location, 4 means there are 4 RPM points, to calculate the RPM does as follow: (256 - 156)*40 = 4000RPM so the last RPM value is 4000RPM.
After you calculate the other values by multiplying it by 40 and subtracting from the last value, so 25*40 = 1000RPM, so the table is 1000 - 2000 - 3000 - 4000 RPM
4. I dont know the constant for the LOAD value, I simply use the motronic editor from Atlantis which calculated the values for me but I cannot garantee it is correct.
5. The fuel value in Part throttle is calculated dividing the value in decimal format by 128, so a value of 128 equals to 1, that means no fuel trim is made. If the value is 140 that means 140/128 = 1.09375 or 9.37% more fuel is added.
So this is fuel trim table, how the fuel is calculated I dont know at the moment. But it might just use some internal formula regarding the various inputs.
6. The ignition value I also used the ones from motronic editor, which I am almost certain is wrong, but I decided to left it. Until I find where are the constants for it. But for what I have seen I am pretty close to the actual numbers.
So, if anyone can help me with the other definitions and the constants, I would appreciate. I dont know much about dissassembler, but if anyone can point me out one dissassembler that will give me some to work with, even I am a noob in this I will have a go.
I still have to find where are the constant values (such as RPM limit, speed limit and others), I think I know where they are but I cant assure that while I dont have all the constants sort out.
Anyway I hope I can help someone else who might be trying to find the maps inside the Audi RS2. As you can see there a lot of them. There are even 7 ignition maps (prety close in values to each one), and to my understanding it has to do with the quality of the fuel your are using, then the ECU chooses one of these maps.
Regards.
PS: I starting doing this because here I thing not many people know what maps they are changing, put aside how much they should change as each ECU (marelli, motronic, delco) have different approaches.
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