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Author Topic: Files provided after reading the Ecu on 1.8t AJQ audi TT  (Read 612 times)
Quen0tt0in
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« on: November 12, 2024, 02:25:46 PM »

Hi everyone, i've finally received my hex-usb cable and manage to link my pc and the Ecu.
The catch is that the files that comes up on the software look nothing like some ecu files.

Can some explain me what are these files and how can i obtain some proper ecu files to tune them on tuner pro ?

Thanks

(Here is an example of the file i extracted from the ecu, there are 3 other like this one and all the files are 4kb)
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_nameless
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« Reply #1 on: November 12, 2024, 07:50:01 PM »

I mean so much to unpack here: First, what software are you using to try to read the ecu? Because whatever it is just outputs garbage. If the cable you have is a ft232rl chipset you can use nefmoto to read your ecu. Kess v2 is a decent clone tool that has been around for a long time now and works decent on these cars. Depending on what version you get mpps works good too. You need to read out the actual calibration from the ecu, modify that using a definition file and your software of choice to make the edits. Tuner pro works ok provided the map pack you use has the correct offsets and the person who made it has a clue on what they are doing. After you modify the calibration, you will need to update the checksums. The ecu has internal checks that verify the validity of the the calibration data and when you edit the calibration you need to update the checksums otherwise you will endup with a non running car and a bricked ecu. Furthermore, before you touch anything calibration related you should get me7logger or vehical up and running and get some baseline logs to compare against the modified file and to verify the car is running proper   
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Giving your mom a tuneup
Quen0tt0in
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« Reply #2 on: November 12, 2024, 09:40:32 PM »

I mean so much to unpack here: First, what software are you using to try to read the ecu? Because whatever it is just outputs garbage. If the cable you have is a ft232rl chipset you can use nefmoto to read your ecu. Kess v2 is a decent clone tool that has been around for a long time now and works decent on these cars. Depending on what version you get mpps works good too. You need to read out the actual calibration from the ecu, modify that using a definition file and your software of choice to make the edits. Tuner pro works ok provided the map pack you use has the correct offsets and the person who made it has a clue on what they are doing. After you modify the calibration, you will need to update the checksums. The ecu has internal checks that verify the validity of the the calibration data and when you edit the calibration you need to update the checksums otherwise you will endup with a non running car and a bricked ecu. Furthermore, before you touch anything calibration related you should get me7logger or vehical up and running and get some baseline logs to compare against the modified file and to verify the car is running proper   

Yeah i do use nefmoto, i’ll try Kess v2 and Mpps today.
About the definition file , I already have one and tried it with an other tune that I found on this forum.
I’ll let you know how it’s going.
Thank man


Envoyé de mon iPhone en utilisant Tapatalk
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JeanAwt
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« Reply #3 on: November 13, 2024, 04:31:23 AM »

nefmoto will do the job very well, read, check your ecu/software numbers...after only look for a definition or a definition close to yours and adjusted...then read and reread s4wiki..and when you start to understand things and reread carefully. and of course don't flash a file found without knowing what was done to it...good luck
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A4 B5 avant 1.8T 2000 NO QUATTRO
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