Undefined tables that are different between 225kw and 240kw factory flashes

[bradsm87]

Hi guys,

I have defined 6 tables into an XDF that are common between all 225kw factory flashes (135i, 335i etc) and common between all 240kw factory flashes (335is, PPK) but different between the two power levels.

Neither the values or the axis headers have conversion defined. This means the numbers are to scale but the values are not converted to an understandable number. A couple just look like slight refinement for the newer developed power level as the 240kw variant didn't appear for two more years. Unk PPK Diff 2 and Unk PPK Diff 5 have values that are significantly raised, possibly being some sort of limits.

Besides these tables and the 2FA4 bypass byte, there are only 19 bytes different between 225kw and 240kw variants (excluding bytes that are different between all ZB numbers). These bytes are:

48926
4892a
4892b
4892c
4892d
4c4fa
4d314
4d7a0
4d7aa
5df44
5df45
5df46
5df47
5e2c0
5e2c1
5e2c4
5e2c5
6fd38
72876

If anyone has any theories about what any of these tables are for, it'd be great to hear them. If it is known that certain types of tables reside in certain address ranges, that'd give a clue. I think at least byte 72876 is a toggle.

Example 225kw bin: https://drive.google.com/open?id=0Bw...WNRTFBJM1Y1Mnc

Example 240kw bin: https://drive.google.com/open?id=0Bw...HdtcFNrazlhZzA

XDF with unknown tables: https://drive.google.com/open?id=0Bw...2tHX21mbEZjeDQ

[RSL]

I really don't know how anyone finds anything definitive in there without a damos. That said, Unknown 1 looks suspiciously like an MAF-based table if the x-axis is to be taken at the face values. Just had to put a wild guess out there

Nice comparisons you're doing, hopefully someone with experience picking them apart will chime in...

[bradsm87]

I've finally got a look at the MSD80 DAMOS. You can search the headings from the IJE0S data in the MSD80 sample file until a similar table is found (assuming breakpoints aren't changed).

Unk PPK Diff 2 is a boost control table loosely translated to "feedforward attenuation per rate of increase in RPM". I'm guessing it's how much to change WGDC output when RPM are increasing at different rates. This could be why many report tuning boost between IS and non-IS cars being very different.

[bradsm87]

I think 5 & 6 are wrong and use shared axis headers. Will investigate and fix and hopefully get a meaning for them...

[bradsm87]

I think 1 or 2 of them are shared breakpoints for unknown tables but unable to find any similar data/patterns in the MSD80 DAMOS

[martial@mhd]

What you defined as WGDC (Spool) Boost Setpoint Factor Breakpoints is the Y axis if WGDC spool, for which no axis table were defined yet.

Table 6 is used in the code as 1D table with 6 16 bytes entries, X axis at 4CDE6 and content (Z) at 4D75C.

[jyamona]

@bradsm87, I should have some time this week to define these for you. I should be able to get them 100% between the DAMOS and parsing through the logic to match up the axis like Martial did above.

The only iffy things will be the 1 byte flags, as it's really tough to determine what they do.

[RSL]

I've finally got a look at the MSD80 DAMOS. You can search the headings from the IJE0S data in the MSD80 sample file until a similar table is found (assuming breakpoints aren't changed).

Nice. If I had a damos, I'd never leave the PC lol Does the damos only cover DME or do they have ones that cover TCU also?

Someone LMK if I was in the ballpark on Unk 1 when you get it defined

[bradsm87]

What you defined as WGDC (Spool) Boost Setpoint Factor Breakpoints is the Y axis if WGDC spool, for which no axis table were defined yet.

Yeah that's my wording of exactly that. I just didn't want to put it in the correct category, otherwise I will forget to copy it when the public XDFs get updated.

[jyamona]

Here's what I was able to find quick

Unk 1:



Unk 2: incorrect; should be 1D table, 16bit, length 4, axis start 5DFCA, data start 5DFD2



Unk 3:



Unk 4:



Unk 5:



Unk 6: having trouble with this one

[bradsm87]

Here's what I was able to find quick

Unk 1:





Unk 2: incorrect; should be 1D table, 16bit, length 4, axis start 5DFCA, data start 5DFD2



Unk 3:



Unk 4:



Unk 5:



Unk 6: having trouble with this one

Thanks Jake. Will have a crack at translating.

I'm not sure what my early XDF that I linked you in a PM had (Sorry about that. I had just discovered WinOLS and was very new to it all), but my Unk 2 linked in this thread is as per your finding.

[bradsm87]

Oh I see what you mean now. Unk 2 is that usa application one. I just assumed it wasn't that due to my 2 compare BINs both being Euro. Bugger. Probably a useless emissions-related map.

[bradsm87]

I've updated those tables.



XDF:

https://drive.google.com/file/d/0Bwk...ew?usp=sharing

[jyamona]

Oh I see what you mean now. Unk 2 is that usa application one. I just assumed it wasn't that due to my 2 compare BINs both being Euro. Bugger. Probably a useless emissions-related map.

No, I actually think it may be max time for spool mode, or something along those lines.

I've updated those tables.

What bin are these values from, the PPK? JW as my screenshots were from an IJE0S stock US bin. Are you good w/ translating German? I could use some help with a few key folders in the DAMOS in that regard.

Also, sending you a PM now.

[bradsm87]

No, I actually think it may be max time for spool mode, or something along those lines.

Ah yes. Agreed. I see other spool mode related tables use the flushing word lol.

What bin are these values from, the PPK? JW as my screenshots were from an IJE0S stock US bin. Are you good w/ translating German? I could use some help with a few key folders in the DAMOS in that regard.

Yep PPK.

I only use Google Translate so I'm no help with translating abbreviations.

[328ijunkie]

Awesome!