I'm really interested in gen 4 reading and writing, preferably over obd. I've read the whole thread and didn't gather that much info about the gen 4 overall. I understand the physical functionality, which many people do, nothing secret about that. Still, the software/electronics seem alien for some reason
Nothing like the engine's control module.
I've seen people try to work with the gen 4 through stflasher or st10flasher software, haven't seen any great accomplishments though. There has to be ways of doing this, there's no question about it. There probably are many people sitting on this information, although probably not willing to share for nothing (much understandable). Many people also seem to have dumps from the controller and have no problem sharing, probably because they don't have a clue what to do with them.
A user here named Shauno posted a long time ago about the gen 4 with a picture of the controller's insides.
http://nefariousmotorsports.com/forum/index.php?topic=7307.0Info and documents about his exact st microcontroller (no idea if all controllers have the same insides):
https://www.st.com/en/automotive-microcontrollers/st10f272m.html#documentationI also posted in that thread and d3irb has some pretty interesting information. (need to learn more about it before I can say anything else)
I have a complete gen 4 rear end, if needed I could provide information about it.
If nothing comes up I'll probably end up controlling the pump and valve manually. Not that it in practice would be easier, but I know where to start at least.
