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Title: Audi 2.7T o2 rear sensors romove - 4Z7907551N ESKONF location and values Post by: rpd on February 21, 2019, 02:21:07 PM Hi!
I want to remove rear o2 sensors in my 2.7T 250KM BES with 4Z7907551N ECU. I have already changed the values for: CDKAT = 0 CWDLSAHK = 0 CDHSH = 0 CDHSHE = 0 CDLATV = 0 CDLASH = 0 CDLSH = 0 CDLSHV = 0 CLRHK = 5 CWKONLS = 17 Now, I have problem with location of the ESKONF, becouse XDF for 4Z7907551R has no value defined for ESKONF. In instruction available on S4wiki these are values "13 bytes starting at 0x10C75". I compared my values to the others bins form 2.7T and that's can not be there. I suspect that these can be values from 0x10C86, am I right? If yes, what i need to change to disable circuit diagnostics? Title: Re: Audi 2.7T o2 rear sensors romove - 4Z7907551N ESKONF location and values Post by: nyet on February 21, 2019, 02:36:51 PM For rear O2 sensors, ESKONF only needs to be changed to report to OBDII that they are not supported
They do not affect anything else. I have not checked the binary you posted, but if the bytes are all 1:1 identical, especially the surrounding bytes, the odds are good you have the right location. Title: Re: Audi 2.7T o2 rear sensors romove - 4Z7907551N ESKONF location and values Post by: rpd on February 22, 2019, 08:06:15 AM I changed the values. In the attachment you can see the changes
From To 0x10C86: 00 C0 0x10C87: F0 CF Is it okay or did I do something wrong? I have Tiptronic, not manual gearbox. Title: Re: Audi 2.7T o2 rear sensors romove - 4Z7907551N ESKONF location and values Post by: SQT on March 03, 2019, 10:39:10 PM I changed the values. In the attachment you can see the changes You checked it, I also searched for an address, found several options 0x10C86 or 0x10C93From To 0x10C86: 00 C0 0x10C87: F0 CF Is it okay or did I do something wrong? I have Tiptronic, not manual gearbox. Title: Re: Audi 2.7T o2 rear sensors romove - 4Z7907551N ESKONF location and values Post by: rpd on April 01, 2019, 02:47:43 PM Okay, I found ESKONF, but I still have doubts about changes in values.
CDHSH CDHSHE CDKAT CDLASH CDLATV CDLSH CWKONLS CLAHSH2 CLAHSHE2 ESKONF Are these all parameters to be changed or something omitted? Title: Re: Audi 2.7T o2 rear sensors romove - 4Z7907551N ESKONF location and values Post by: pukacinio on November 16, 2020, 03:08:27 PM Okay, I found ESKONF, but I still have doubts about changes in values. CDHSH CDHSHE CDKAT CDLASH CDLATV CDLSH CWKONLS CLAHSH2 CLAHSHE2 Are these all parameters to be changed or something omitted? Can you tell where you find it ? I have the same problem. Title: Re: Audi 2.7T o2 rear sensors romove - 4Z7907551N ESKONF location and values Post by: bikemaker on January 21, 2021, 12:51:40 PM I changed the values. In the attachment you can see the changes From To 0x10C86: 00 C0 0x10C87: F0 CF Is it okay or did I do something wrong? I have Tiptronic, not manual gearbox. Yes I agree ESKONF begins at 0x10C86 for the 4Z7907551R and 4Z7907551N binaries. But the locations you want to change are 5 and 6 of 13 byte string and you are trying to change bytes 0 and 1. Review the Wiki thread again. So your string should look more like this 00 F0 B3 FC CC F3 FC FF AA FA FF FF FF instead of 00 F0 B3 FC CC 33 F0 FF AA FA FF FF FF. I might have found this thread earlier if the search function worked. LOL Note my string is slightly different than yours but I have a BEL and your engine is a BES. Title: Re: Audi 2.7T o2 rear sensors romove - 4Z7907551N ESKONF location and values Post by: janovski on August 18, 2023, 01:20:59 AM Are you sure about the location of ESKONF in the R an N binaries? It is confusing that Byte 4 Bit pair 0 should be EV5 but has a content of 11 in it. So this would mean fuel injector 5 is not installed?!
I would expect the fuel injectors locations all have 00 printed for "installed". |