[Terraphantm]

So the 4-cylinder models seem to use the MSD81.2 rather than the MSD80/81 like their 6-cylinder cousins. Undoubtedly the code is very similar, but without seeing a full dump, it's hard to say one way or another whether we can support it for sure.

[Jonas225]

Wow, thank you for the fast answer!

I can check the ZUSB next week. I can also provide a dump of the ECU. With the BB app it should be easy.

All ZF have 512 bit? So we can modify the 0da, sign it and flash it without the need of xHP?

In conclusion:
ECU‘s with 512 bit can be signed and flashed

ECU‘s with 1024 bit (or more) can‘t be signed because the key is unknown. You have a bypass for the 0pa file. That deactivates the „check“ in the 0da file. -> RSA delete

Is that right?

[hassmaschine]

Yes, that is correct.

[Jonas225]

In the xHP thread dave said the 6HP26/28 uses 1024 bit and the 6HP19/21 512?

You say all ZFs use 512?

[rjahl]

He's partially correct, early 6 speed ZF transmissions use 512. Second generation and newer use 1024.

Bimmerlabs handles the first generation very well.

[hassmaschine]

Pre-lci it looks like GKE191 to me - which is 512 bit.

We support GKE191/211/195/215

[Terraphantm]

Originally Posted by Jonas225

ECU‘s with 512 bit can be signed and flashed

ECU‘s with 1024 bit (or more) can‘t be signed because the key is unknown. You have a bypass for the 0pa file. That deactivates the „check“ in the 0da file. -> RSA delete

And implicit in this is the fact that 512-bit keys can be factored pretty quickly on modern computers. Get something like a threadripper cpu with an nvidia graphics card and you can probably factor a key at home in a little over a day.

1024-bit is still out of the realm of possibility outside of the NSA, though I suspect in the next decade or so we'll have consumer-grade hardware capable of factoring those keys. 2048-bit and higher, and you'll probably be waiting for quantum computers.

[_Ryan_]

Originally Posted by hassmaschine

It's fine to do, unless you're planning on getting an emissions inspection within the next month or so, because it also resets emissions monitors, then I would wait. Also you must do this with the ignition on (but car turned off) and you'll probably have to clear error codes and restart after the first startup.



Pretty much what I wrote above. There's probably a small bump in power, but otherwise I can't ever have a MAF failure.

The throttle would be pretty easy to tweak. Is your car 6mt or auto? I haven't noticed any real 'lag' with the 6mt, but I think a lot of it comes from the custom tune.

6MT. I perceive the throttle to have a delay when first applied.


Could this be the throttle curve you mentioned?


Have you tested your tune on other cars? Did you raise the rev limit slightly? (can't recall if it was yourself or someone else testing this)

[hassmaschine]

I can raise the rev limit but all of the free files have stock limiters (since they are based on stock tunes).

It's been so long since I've driven my car with a stock tune, it might be other changes (there's also a throttle position map). One of these days I'm going to reinstall my MAF and flash the stock tune to remember what it was like (well, I sort of remember - I thought it felt neutered).

[Pinscher]

Originally Posted by hassmaschine

I can raise the rev limit but all of the free files have stock limiters (since they are based on stock tunes).

It's been so long since I've driven my car with a stock tune, it might be other changes (there's also a throttle position map). One of these days I'm going to reinstall my MAF and flash the stock tune to remember what it was like (well, I sort of remember - I thought it felt neutered).

Do you have an ETA for non stock tunes with lifted limiters and the mods for transmissions too?

I'm going to have some time to install my 3IM so I hope to get the modded tune put onto my 328xi

[bryanjb]

hass - just finished installing the 3IM, and was checking bimmerlabs for updates and the link to the USB / OBD tool - only to discover the site is down. you are probably aware, but if not - heads up.

Originally Posted by hassmaschine

I can raise the rev limit but all of the free files have stock limiters (since they are based on stock tunes).

It's been so long since I've driven my car with a stock tune, it might be other changes (there's also a throttle position map). One of these days I'm going to reinstall my MAF and flash the stock tune to remember what it was like (well, I sort of remember - I thought it felt neutered).

[hassmaschine]

yeah, something with Azure went haywire. it's up again.

[bryanjb]

thanks - got the files.

2 questions:

is it worth getting the 0Pd data file from my car before flashing the RSA Delete / 330 firmware?

and, any progress to report on the web based tuning system you mentioned? still interested in looking at tables and all that fun stuff. glad to be a low functioning beta if you need one.

Originally Posted by hassmaschine

yeah, something with Azure went haywire. it's up again.

[Echoninety]

Wow - so much to go through and tinker with...

[hassmaschine]

Originally Posted by bryanjb

thanks - got the files.

2 questions:

is it worth getting the 0Pd data file from my car before flashing the RSA Delete / 330 firmware?

and, any progress to report on the web based tuning system you mentioned? still interested in looking at tables and all that fun stuff. glad to be a low functioning beta if you need one.

No, you don't need to do that. the RSA delete already updates the program.

I don't have the web based stuff available yet - there's always 10,000 other things that need attention first.

[bryanjb]

sorry, should have phrased my questions more clearly.

i've seen 4 stock MSV80 files for my car / project on bimmerlabs. just wondering if i should archive my own stock file in case I need to flash it back for some reason?

Originally Posted by hassmaschine

No, you don't need to do that. the RSA delete already updates the program.

I don't have the web based stuff available yet - there's always 10,000 other things that need attention first.

[hassmaschine]

Nope.. You can just flash any of those stock files later on - either MI20S or MM10S would be fine.

[Terraphantm]

Only reason to backup would be if you already have some kind of tune I guess. That said, we don't currently give you a means by which you can backup the DME. That might change in the intermediate future

[Jonas225]

Originally Posted by hassmaschine

I have looked at that a little bit and I think it is possible to do. But basically yes, you could change the power class on the 118i file and flash it to your 116i. Bimmerlabs could support it providing I knew which file it needed to be (not hard to find) and assuming I know the location of the power class byte and have an RSA delete for your specific program version.

I created a project at bimmerlabs but I'm not able to select the DME. I got a dump of the 116i and would like to upload it to bimmerlabs for you. But thats not possible without selecting a DME.

Here are some additional information:

116i E87 N43B20 MSD81.2

ZB number: 8688008
Program: 8672567A.0pa
Data: S8688009.0da
SW: 0044RD0QID0S
Power class: 01 (N43B20K0 according to NCSdummy)


I THINK these are the files for the 118i:
ZB number: 8688004
Program: 8672567.0pa
Data: S8688005.0da
Power class: 00 (N43B20U0 according to NCSdummy)

I tried to find the power class byte, but without an xdf, damos, ... I had no luck. Maybe the description in NCSdummy is not correct.

Would you have a look at these files?
Can I PM you the original file?

[hassmaschine]

I haven't added support for MSD81.2 yet which is why you can't select it - but if you can PM me with your email, and send me the full dump, I can probably add it.

[The Nightman]

I flashed the MAF delete tune and thought I'd share this picture comparing the European IAT sensor to the NA MAF sensor:



I'll post more about the tune after more seat time.

[hassmaschine]

Yeah, there should be quite a bit less restriction. Plus no MAF = no MAF failure or cleaning..