Modifying Motronic 2.3.2 ECU hardware and software.

[UrS4boy]

i havnt been working on it lately, my car blew up

Oooo...Tell us more.

[ba6nokia]

you blew up AAN?
Maybe better not playing with Motronic.

[vwnut8392]

i havnt been working on it lately, my car blew up so i tossed it behind the garage for now and i've been playing with megasquirt in a turbo E30 BMW.

[kaross]

any new here?

[vwnut8392]

For all you guys still working hard at this i stumbled across a really cool site with aolt of great motronic information.

http://trionic.mobixs.eu/

Take a look at this PDF for Motronic 4.3, they give tons of info about the inner workings of this version including some good examples of how to use programs like idapro to find certain functions in the ECU. I feel motronic is motronic no matter what its running so you could get an idea of how to go about digging deeper into our ECU's.

http://trionic.mobixs.eu/Motronic/M4.3/Volvo%20Motronic%204.3.pdf

[kaross]

Yes, KRKTE can be obtained by formula, but I need to know where I can correct it in ECU bin file. Basically it is injector constant.
KRKTE is a constant which converts the required fuel mass to be injected into a duration in milliseconds which the fuel injectors are to be switched on for injector pulse witdh. This value is calibrated for the stock fuel injectors and fuel pump so if uprated injectors are fitted, it will need to be recalibrated.


easiest way is to calibrate fuel map, but it is not the right way. mostly fueling will be wrong. I want to do it in right way like PRJ.

[stocious]

he wont do it.
I was asking info for money.
But now I have find a lot by myself. Now just need to find KRKTE.

Excuse me if I misunderstand ! I thought Krkte could be obtained with a formula,

Which is why I posted the link.



Good luck with your work !

[stocious]

It has to be in your blood like oil in ours

Interesting all the same over there

[pasbogdan]

Nefariousmotorsport.com

Maybe in there somewhere !

Good luck !

On that forum i found old info that i learned long time ago

xx = 16Bit Checksum of the complete binary file
yy = binary complement of xx => FFFF - xx

zz is an internal Bosch build number of the file

Here different examples for the last 6 Bytes (xx yy zz):

Audi S2 - ABY - M2.3.2
895907551A - 0261203145 - 1267357519
...F9 D9 06 26 A1 47 => FFFF - F9D9 = 0626

Audi S6 - AAN - M2.3.2
4A0907551C - 0261203601 - 1267358644
...0A 96 F5 69 A2 45 => FFFF - 0A96 = F569

Audi RS2 - ADU - M2.3.2
8A0907551C - 0261203543 - 1267358647
...AA 37 55 C8 A2 53 => FFFF - AA37 = 55C8

Am i to afraid or you have to be born for something like this?

[kaross]

yes, I am also in this forum. Why are you mentioning it?
I don't think that much people know KRKTE for his M2.3.2 ECU.

[stocious]

Try here

Nefariousmotorsport.com

Maybe in there somewhere !

Good luck !

[kaross]

he wont do it.
I was asking info for money.
But now I have find a lot by myself. Now just need to find KRKTE.

[martinws]

Dmitri should run a seminar on the basics and charge for it. I was reading PPC today and Dave Walker(emerald tuning) is talking about doing that to stop people always asking about it.

[blackS2]

You don't need to Understand motronic like you don't need to understand VEMS. You just need to know what map does what. That why there are XDF files. They are like translators. You put it in and then when you open the motronic file the maps have titles and values instead of FF00 and stuff.

[Billman]

Few people have the skills to understand Motronic.
So, don't cry like a little girl and go buying VEMS.

You don't need to Understand motronic like you don't need to understand VEMS. You just need to know what map does what. That why there are XDF files. They are like translators. You put it in and then when you open the motronic file the maps have titles and values instead of FF00 and stuff.