Yes, I did... and another 2 40 pages threads...
It's just that this ASM and hex is a bit over my head. To be honest, I program c#, asp, asp.net, c#.net, .net core, php... Took me years to master them, it feels weird now to start assembly not that I couldn't do it, but mostly it's the time that lately seems not to be enogh to catch a breath even.... As I was quite passionate about electronics, years ago, I started playing around with atmega controllers and that wa sthe first time I got into ASM. However, I don't know exactly why I stopped, probably family, job, I don't even remember....
However, getting back to my current issue - I figured out that the launch php script doesn't properly do the movb to calls conversion - that part of the code remains intact as you can see in the attached difference.jpg. So I've modified it from the original F3 F8 E8 18 to DA 87 C0 4F considering that DA changes to calls and the address where I asked the script to put the function is 0x74fc0
The script places the function at the proper address and also places the variables starting 0x7a000 as you can see attached. I've tried with FTOMN 00, 01 and 02 with same result - LC not working. I had the impression during first tries that it starts to cut injection but that was just a false positive generated by my pops and bangs settings.
Now, there can be only 2 issues - either the variables are not correctly addressed in the function, which I kind of doubt, either reading through some of the posts there might be a problem in the function with the engine temp readings - which I could only test by using a function without the temperature factor, which I don't have and which for the moment is beyond my capabilities to create. Or maybe there's more that I can't even figure out now....

Split and moved to tuning since it looks like you are serious about doing actual ASM coding

It looks right to me at first glance, but unfortunately I don't have the time to really dig into it since I don't have an IDA project for that ECU. I do know there are a lot of assumptions in the launch.php that make it inappropriate as a general tool.

Hopefully others can chime in.

In general, though, you really want to be doing this work with IDA, and not soley rely on automated tools.

Remember hearing/reading about people having issues with the 512 binaries, and implementing LC. This was using the patcher that works fine on the 1028 bins.

Hi, if you understand how to change the code, try making a light (check engine) indication of conditions

Hi,

Thank you very much for your time looking into this.
I guess the problem lays with the scripts generating the function....
I've tried to implement the changes you suggested, but it didn't seem to work.
Can I ask you about point:
1. Now that you mentioned, it seems the function is called twice...  I think the script places the call wrongly at 0x073f6e while it should be at 0x6ea0a... Isnt's this the correct location? I know it should be the 4 bytes before last D7 40 06 02 03 F8 which in my file is position 0x6ea0a.
2. I think the script was set to use tmotlin (0x384881) instead of tmot - I guess both should work....
3. variables are set starting 0x7A000 - LaunchSpeedT 2 bytes; 0x7A002 - LaunchRPM - 2 bytes; 0x7A004 - IginitionCutDuration - 2 bytes; 0x7A006 - RPM Threshold - 2 bytes; 0x7A008 - AccPedalThreshold - 1 byte and 0x7A009 - Water Temp Thershold - 1 byte.
I am not sure what D7 00 81 00 stands for as it occurs several times in both scripts, but both seem to be static in the scripts, thus not depending on the variable addresses or whichever custom addresses used by the script.
4. sorry, this one I do not understand.

I've followed your advice and generated this code:
I've called it at 0x6EA0A as that seems OK to me (please correct me if I'm wrong)
.... and still no luck
Attached the test bin

1 should be called @73f6e only
3 as i said water temp should be @7A00A check it in your xdf
4 long story short - word param takes 16bit and byte is 8bit, this script uses words and you should place them with 16bit step. A006 A008 A00A etc

change FD 40 to CC 00 @74FCE to avoid this tmotlin check for test

can someone dissamble for me this fuction

Is is posible to do it without IDA pro, let's say some freware software. Or even do it maunaly?

Can you tell me small notes how to start using it?