NefMoto > Noob Zone > Noob Questions (Moderator: turboat) > AUDI A6 C5 2.4V6 AML ME7.1 3B0907552AP - how to numb rear o2 sensors
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Author Topic: AUDI A6 C5 2.4V6 AML ME7.1 3B0907552AP - how to numb rear o2 sensors  (Read 5374 times)
bendzji
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I'm looking to try to numb the sensivity of the rear o2 sensors -I'm getting P0420 , P0430 DTC.

Propably it happens beacause i have a LPG conversion so the exhaust gases are diffrent than on petrol ( no DTC when using it )

I found on the forum and WIKI that i should change these parameters:

    AHKATMN (0x18672) - leave alone
    AHKATMX (0x18673) - set to max
    AHKATS (0x18674) - set to max
    AHKATSB (0x18675) - set to max

Are these adresses the same in my ECU eeprom? Cannot find any XDF but it's a ME7.1.
In my BIN all of these values are the same.
« Last Edit: December 03, 2014, 02:06:30 PM by bendzji » Logged
bendzji
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« Reply #1 on: December 02, 2014, 03:37:52 PM »
After comparing bin files with a M-Box i suppose that in my bin these parameters are on:

AHKATMN -0x18662
AHKATMX -0x18663
AHKATS - 0x18664
AHKATSB -0x18665

Am i correct?

  
I'm looking for a second ECU to play with on bench - what about other part number , let's say 3B0907552 but with F , AN or other?
« Last Edit: December 03, 2014, 02:02:08 AM by bendzji » Logged
bendzji
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« Reply #2 on: September 30, 2015, 02:20:29 AM »
I've changed:

CDKAT  - 181A0
CWDLSAHK - 18653

and It works , they are almost in the same place as in 3B0907552AN
« Last Edit: October 20, 2015, 02:44:23 PM by bendzji » Logged
kris1855
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Quote from: bendzji on September 30, 2015, 02:20:29 AM
I've changed:

CDKAT  - 181A0
CWDLSAHK - 18653

and It works , they are almost in the same place as in 3B0907552AN



Hello, I am at the stage of blocking diagnostic probes behind the catalyst.
I opened the bin file from ecu into the hex editor and the question in what table should I change it to block the probes.
Audi a6 c5 2.4 AML 3B0907552AN
Maybe someone would suggest where to look for it.
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macxxx
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You have all the info here Wink
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kris1855
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Quote from: macxxx on May 20, 2018, 05:06:20 AM
You have all the info here Wink

I understand that in the editor hex he finds the address CDKAT - 181A0
CWDLSAHK - 18653
and I change from 01 to 00 ??
Do I understand correctly?
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macxxx
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You didnt try?
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kris1855
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Quote from: macxxx on May 20, 2018, 11:25:33 AM
You didnt try?
I'm asking, because I do not want to make any mistakes.
In the picture, I marked the value 01 and I have to change it to 00.
Make a check sum and upload to ecu.
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