Metronet: Glad I can help. Also thanks for the hint, I'll give it a shot

Jim: Although I assume there is a DAMOS floating out there somewhere, I haven't seen it yet.

Also, here's a revised version with some more maps and better scaling on the high value maps

Sooooo, I managed to get a copy of the Unitronic 93 Oct catless AVK tune to read in bootmode

Here is is, you can compare against my defined file to see where they made their changes

To be honest, it doesn't look like they did much

Looks like they changed the main timing tables by about 2-3 degrees advance.

As well, it looks like they changed the 10x14 intake manifold values as well.

what really surprised me is that they didn't change A) the camshaft timing and B) the torque delivery values at all.

While I understand the reasoning, I should advise that the file I posted can't be used in any meaningful way. All the maps that have been altered have been scrambled, so there's no way that someone could use it to make a useable file.

Below are the codewords to be confirmed.

I basically copied them sequentially from 4Z7907551R.csv  location 22004-22032

Soooo.... speaking of that Unitronic tune, I finally managed to get it unscrambled. While I won't disclose the method I used to get Winols to read it the .bin itself (out of respect for the liability issue), I will disclose exactly what changes my $400 got me....

+3 deg timing added across the board on the 4 timing maps between 011EB6-120C6 and 4deg timing added across the board on the other 4 timing maps between 012EB3-013117, along with some additional coding (I assume for the catless exhaust) with consisted of just entering values of 128 on a couple 8x8 maps. As well, There appears to be a tiny bit of coding in a few other areas that I haven't defined yet.

That's IT, they didn't touch any lambda maps, camshaft maps, torque requests, target cylinder filling, manifold pulsations, changeover, fueling corrections NOTHING!!!!!!!

I'm f*king LIVID. I've already called the shop that did the tune and informed them that I'll be asking Uni for a refund. That said, it's not the shop's fault, they just flash the tune and I told them as much.

I'm sure Unitronics will deny my request and this will get ugly, but yeah, looks like my suspicions about this tune were unfortunately confirmed.

Also, let anyone think that there are any legal ramifications to me disclosing this, let me assure you there aren't. Trust me, I know a good lawyer, me

The legal test for intellectual property rights for copyrighted material (in a nutshell) is that there needs to be some sort of significant skill or expertise applied to the subject matter (i.e. the factory code) to render it unique.

In this case, there absolutely has not been. To draw an analogy calling this tune proprietary is literally is the equivalent of singing a song, shifting a few verses up a note omitting a couple of words and calling it your own.

Interestingly enough, I think there may be sufficient grounds for legal action on my part (not that it would ever be worth my while) as they made representations that they had invested time and expertise in making it when they clearly have not.

Anyway, thought you'd all be interested to hear it.

Based on what I've seen of the changes they made and the way that they made them, I don't think that they did much else.

It was pretty obvious what maps they did change as there was an additional layer of scrambling that was only present in the map areas.

Basically, there was a numerical constant randomly strewn about the file which was there from one end to the other.

However, once that was removed there was another set of numbers that was used in specific map areas. But as indicated, the second layer of scrambling was very specific and targeted.

As well, with respect to my assertion that they just threw the same timing across the board, the delta of the unscrambled values was exactly the same across all 4 maps from each of their respective locations.

Again, I assume you don't want me to get too far into the specifics of how I isolated everything. But needless to say, I'm pretty certain I'm correct about the lack of effort that went into this file.



Now, in the interest of me learning something however, you mentioned that sometimes tuners don't modify stock maps. Care to elaborate on this? If they aren't using the stock maps, what are they using?

I know I've heard that they'll play around with the map addresses sometimes. However, where do they end up storing the map info to keep it out of sight? I could see being able to hide small one or two dimensional maps and codewords that way, however a larger map like timing values and the like makes a pretty telltale signature.

On a good note though, I finally managed to bootmode and not fry the ME7.5 ECU I got to experiment on at the wreckers  

Same thing. N/A motors just aren't that great for tuning.

And adding FI to a motor which has N/A motronic is not a good place to start learning.

And that's the reason my A4 is ever going to be turbocharged is if a 2.7T lives under the hood lol.

As for the S4 and tuning, I've heard that they actually respond quite well to the JHM tune and headers. I've also heard the same thing about the 3.0 V6 JHM tune as well, although with so few people modding that engine it's a pretty small sample size.

I wish I'd had the funds to have gotten the JHM tune in the first place. However I hadn't finished as an articling student so funds were tight.

I decided that the Uni tune and the catless downpipes I built with the difference I saved between Uni and JHM tunes would give me the best bang for my buck.