NefMoto

General => Introductions => Topic started by: psyko on September 07, 2023, 03:35:17 PM



Title: Trying to "peek" at map data from tuner
Post by: psyko 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?


Title: Re: Trying to "peek" at map data from tuner
Post by: overspeed on September 07, 2023, 03:57:46 PM
sure, just read ECU in bench (or Bootmode) with proper tool like Autotuner, Bflash, Ktag, etc


Title: Re: Trying to "peek" at map data from tuner
Post by: psyko 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!


Title: Re: Trying to "peek" at map data from tuner
Post by: prj on September 08, 2023, 12:36:19 AM
OP's face once he realizes all the tools that do MG1 cost 5k+:

(https://i.kym-cdn.com/photos/images/newsfeed/001/431/201/40f.png)


Title: Re: Trying to "peek" at map data from tuner
Post by: psyko on September 08, 2023, 11:40:00 AM
OP's face once he realizes all the tools that do MG1 cost 5k+:

(https://i.kym-cdn.com/photos/images/newsfeed/001/431/201/40f.png)

LMAO!!! Exactly.

How about BitBox, it seems much cheaper... will it work??


Title: Re: Trying to "peek" at map data from tuner
Post by: overspeed 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


Title: Re: Trying to "peek" at map data from tuner
Post by: psyko 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?


Title: Re: Trying to "peek" at map data from tuner
Post by: prj on September 08, 2023, 12:58:36 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.