Hello everyone, as my first discussion, I would like to propose a nice rognazza that I pull ahead by a few days.
A customer has to months a touareg 2004 5.0 v10 firm to casusa of a faulty ecu.
I have to say that this client has made the rounds of the various people who in the end failed, so I found a ecu already dismantled with much of the e2prom already risaldate(I have read the file for immo).
I realized early on that, if you have tried to restart the machine has completely ignored that the car has dual ecu edc16u1, and hacked on only one, convinced, of course, that had only one(because the first was not removed).
The first thing I did ? was to clone the faulty ecu with another known working. With the first ecu ori would not start aneither the starter motor, with the cloned one, but anyway the car would not start.
I did a diagnosis with the vcds and I found that on both of the units I receive the error e2prom with written with MIL ON.
From here on in absolute darkness:
The problem ? that I don't know what they did with the people before me, but especially what they put into it is blessed e2prom.
I tried to open the second ecu and do a backup of everything.
I compared the files of the first and second ecu with a dial indicator binary, and I noticed that the files being read are all the same except for the contents of the respective e2prom, I also have the same n?frame.
with a program I tried to remove the immo to avoid problems, but nothing always the same error.
I hope not to have made him sleep, but my questions are the following:
1)what'? the ecu master and the slave?
2)the ecu must have exactly the same files, or the master must differ in something with the slave?
3)the problem for the start-up is in the files of the e2prom?
4) someone with a backup of the respective ecu read in bdm?
5) there is a file called "virgin" that allows me to put in motion the machinery without considering the immo and the distinction between master and slave?

Thanks in advance to anyone who will give me an answer, and sorry if I have dwelt too