NefMoto > General > Introductions > Trying to "peek" at map data from tuner
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Author Topic: Trying to "peek" at map data from tuner  (Read 2994 times)
psyko
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« on: September 07, 2023, 03:35:17 PM »
Hi there,

I have a BMW that is tuned by a 3rd party. I want to figure out how to dump the map (or sniff the map download to the ECU) to reverse engineer their calibrations.

Do you think this is possible?
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overspeed
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« Reply #1 on: September 07, 2023, 03:57:46 PM »
sure, just read ECU in bench (or Bootmode) with proper tool like Autotuner, Bflash, Ktag, etc
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psyko
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« Reply #2 on: September 07, 2023, 04:00:42 PM »
Thanks! I am a bit of a noob to this stuff, see the post I made here --> http://nefariousmotorsports.com/forum/index.php?topic=22152.0title=

I was trying to do this by sniffing the raw data transferred over CAN during the programming session.

I'll try to figure out the tools you listed above!
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prj
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« Reply #3 on: September 08, 2023, 12:36:19 AM »
OP's face once he realizes all the tools that do MG1 cost 5k+:
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psyko
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« Reply #4 on: September 08, 2023, 11:40:00 AM »
Quote from: prj on September 08, 2023, 12:36:19 AM
OP's face once he realizes all the tools that do MG1 cost 5k+:



LMAO!!! Exactly.

How about BitBox, it seems much cheaper... will it work??
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overspeed
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« Reply #5 on: September 08, 2023, 12:22:03 PM »
He didn´t put any limit in cost  LOL

there is some clone tools that can read, but I would not trust write MG1 with any of those, even original tools eventually fails
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psyko
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« Reply #6 on: September 08, 2023, 12:57:00 PM »
I am mainly interested in reading for now, do you think bitbox will work?

Where can I find the documentation to make my own tools? Can I buy this from BMW?
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prj
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« Reply #7 on: September 08, 2023, 12:58:36 PM »
Quote from: psyko on September 08, 2023, 12:57:00 PM
Where can I find the documentation to make my own tools? Can I buy this from BMW?
There is no documentation, the ECU's are RSA protected.
Whole reading and writing is possible because someone found a security hole and made an exploit to abuse it.

The chance of you making your own tools if you need to even ask about this is 0.
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