i have a jdm 8mr and can get access to a OP2 cable. if u guys need a rom of my car.

what could be intresting is to get a hold of the ralliart tarmac or gravel spec ACD controlers.

a question who do people want to switch off AYC but leave the ACD on?

https://www.evolutionm.net/forums/ev...everybody.html
Forum ACD FAQfor reference

Some say it provides unpredictable results, others say it is more prone to breaking.

The Gruppe S flash also disables the ayc (if there is one)

Based on this comment in the wikipedia entry for AWC I'll assume that the ROMs are different between the VIII and IX (because, you know... Wikipedia knows everything).

http://en.wikipedia.org/wiki/Mitsubi...ncer_Evolution

interested in verification - i wasn't previously aware of a change to the system between the 8 and the 9

well if acronyms tell u everything. the 8Mr/9s got the SAYC while the previous got the AYC so that part of the ecu could be different ;)

Evo8 ACD definition so far.

Download -> Attachment 147158

All 3D tables defined. Correct axis are attached to tables, but scalings not found yet.

Added Hex ROM Id, to EcuFlash header, for differentiation between minor versions. 4014 is rom name, 03 is minor revision.


Tables are named like A1.1, A1.2, A1.3, A2.1, A2.2, A2.3.

A1.1 A is the table group.

A1.1 1 is switched in the ecu by something I have not found yet.

A1.1 .1 is switched by Tarmac, Gravel, Snow. Not sure of order yet.

So there are six tables in group A, but only one will be used.


Attachment 147152

Attachment 147159

If someone can please log the ACD with EvoScan. Then I can find the scalings for the axis, and what the tables do.

There are also 30-40 2D tables, but without knowing what they do its pointless to add them.

dont know if this will be correct but i had a little play with the table addresses and scalings and came up with this for the main table.im still new to dissassembly

i am excited and well worried (more tables to learn) :lol:

Evonut, not entirely sure that the Y axis would be 122.5% TPS angle. The hex value 3972 is referenced in almost all the other tables it seems though.

Is anyone willing to send spare ACD ECU to Ceddy?

Bryan, do I understand it correctly that you would?

I believe it would speed up the development on this part.

ECU PIN 79 - ACD PIN 36 seems to be Idle position signal 0-1V idle, 4V-more open throttle

Yeah I was kind of assuming that

Also, this ACD ECU has to know RPM from somewhere. I was thinking that is RPM on that pin.

I think it is good that more people to start downloading they're roms to make a small database of roms and see how many different one exists.


I'm starting to see my dream come true about tuning this ECU.
S.

Thanx, operation description here is useful {thumbup}

Anyone with the MOTEC ECU willing to pull the ROM? It seems the same/similar hardware is used.
Maybe we could disassemble it as well :P