NefMoto

And know which file I should go about searching for values in?

After the TDI 6th gear cruise is no longer operable in 6th, this is in an S6 running the 559E euro file with an 01E conversion.

2.5 TDI V6 quattro ECU:
8D0 907 401 B

The file itself.

Great, that should help get this started. You're sure that is a manual trans file I presume?

Don't really know for sure, but it should be a manual yes. However if it's not, you can go on ebay.de and search for "Audi 2.5 TDI quattro ECU" or "Audi 2.5 TDI quattro Motorsteuergerät" and you will see many ECUs that might fit as well. There were at least two TDI 01E transmissions however i don't know if the ratios are different for 6th.

Let google translate handle it for ya:
http://vin-online.ru/etka.php?vag=AU&rgn=RDW&mod=A4&year=2001&kat=249&gr=3



If all else fails I can give you a new part number tomorrow morning because I have a manual 2.5 TDI ecu sitting in the garage.

8D0 908 401 P is the other 2.5 V6 TDI ECU i have here

Hei

Are you solve this problem

I have the same problem with my golf 4 1.8t, i change my gearbox final drive 4,25 to 3,666.
After that if i driving with 5th gear the cruise is not working. At speed 100km/h the engine speed is now 2200 rpm, before was 2700rpm.

I was find:In my ecu 06a906032hn, the value NGANGMIN - 400rpm. But in golf R32 v6 it was 500rpm.

I'l will change this value and tray it out tomorrow, maybe i solve this problem.

If you can anderstand german:

FB BBGANG 14.50 Funktionsbeschreibung

Die Funktion stellt die Ganginformation gangi zur Verf¨ugung, die unter anderem f¨ur eine Parameterumschaltung in den Fahrbarkeitsfunktionen
und im Fahrgeschwindigkeitsregler(FGR) ben¨otigt wird. F¨ur die drei Getriebe-Varianten Handschalter, Stufen-Automat und
CVT kommt dazu jeweils ein unterschiedliches Verfahren zum Einsatz.

It works now, im happy to drive in 5th gear with cruise control.

So you increased the value in order to compensate for the lower gear?

May I aks you what have you done? I have the same problem with cruise but on 6 gear.

If it helps, here is ori file from Allroad 2.5tdi 6 gear manual.

8E0907401J  0005

You don't need any other files, what you need is just log nvquot_w from the ECU in each gear and set the boundaries correctly.

I'm not as adept at finding ram addresses as you sir.

I've you make an IDB I'm sure I can find it for you.

Looks the same everywhere.

Yep that's BBGANG :-)

My Volvo file:

(http://i716.photobucket.com/albums/ww161/jpcurrie/BBGANG.png)

Beat ya to it, buddy!
NVQUOT 559E File

A monkey with a hex editor can find that.

What he needs is nvquot_w ram value location, so he can log it in each gear and set the limits correctly.

Haha, all that should have to be done is recalculate NVQUOT6U with the new gear ratio.
But for completeness:
nvquot_w - 0x381FD2

Nice!  It would have been easy to xref the BBGANG maps and define the RAM location from there prj :)

If a monkey with a hex editor finds the NVQUOTs, then another monkey with IDA can xref them to BBGANG. :D

Calculating gear ratios is a lot more work and more error prone than just log nvquot_w for 3 seconds in each gear and punch it in.

Thanx, but actualy I've used VCDS logger until now. I'm trying to log via me7logger, but there is no "echo from FTDI" I tried blue cable and VCDS cable, but without sucess. So thank you for your reply, but first I need any decent logger  :)

i took the gear ratio table, calculated the difference to oem file and changed the file down for the TDI Gearbox in gear 4&5&6

Gear 4: 11% lower rpm/kmh
Gear 5: 20.8% lower RPM/kmh
Gear 6: 21,8% lower rpm/kmh

based on the oem pdf from audi with the donor gearbox

Did you take different main ratio? I checked that yesterday and my calculations were as follows:

5,656
5,656
5,656
1,706
5,656
28,296
same as yours, a % lower rpm/kmh. I used FTL gearbox vs DSY which s4 na used probably.

For anyone else out there wondering whats up with the wiki info, the address is scalar and its two bytes, with a 0.007813 multiplier.