the council on ecu faulty touareg 5.0 v10

[barrags]

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

[munro]

that car ? very complex, I suggest you to search in the network of pdf signed ssp 298 and ssp 304....I had posted a link where I could find but the post ? awaiting moderation for who knows? why....
however, the ecu of the car are not master and slave, as you say, but each of them receives signals and maintains a single bank..then both communicate with each other to manage the engine...
so I think that any work you do for an ecu then necessarily you have to do it on the other..

[barrags]

thanks a lot for the help...not being a magician, I'm becoming an idiot.. :-)

[barrags]

found! now I give him a look...

[rego88]

hello.... then.... I also played a little on this type of car.... in the substance at that car had been changed the alternator, and after he started his problems, but from what I know in the end they fixed and it was the wiring that goes to the automatic transmission ruined.....
also check you, ste machines cel' has the defect that if you tap or move the wiring of the automatic transmission damage defects..... and on the dashboard are flashing all gears.
if I placed the hw and sw maybe I have something for you.... precisely I do not remember now, but it seems to me that the e2p were different between the ecu a and ecu b.....
anyway, munro, I believe that it is not possible what you say.... because it can't handle a ecu for a bench.... there's got to be a master and a slave, because they can vary things only on an ecu alone, for example, the autoadattamenti.... must be the same for both the ecu must think as if it were a single, even if the ecu receives the signals from the maf 2 maf different, 2 sensors, turbo different ? everything double!!

[munro]

anyway, munro, I believe that it is not possible what you say.... because it can't handle a ecu for a bench.... there's got to be a master and a slave, because they can vary things only on an ecu alone, for example, the autoadattamenti.... must be the same for both the ecu must think as if it were a single, even if the ecu receives the signals from the maf 2 maf different, 2 sensors, turbo different ? everything double!!

in fact, the two ecus communicate with each other as if there were only one but really? we know very well that are 2....

[barrags]

ok, thanks! I could post it tomorrow because I've forgotten them at the office. do you prefer a single file, or all three separate for each ecu?

[barrags]

with the bad one was not moving menneno the starter motor. with the cloned part of the motor but does not put in motion.
Not ? been done no work on the car, if not to have changed the sensor because they thought it was that. in diagnosis, the machine does not have other errors if you are not one of the e2prom damn....

[munro]

try to read the e2p of the ecu "good" and rewrite it in the ecu handled.....have you ever seen...

[barrags]

according to me you can have a hope of throwing in a bdm backup to another machine the same and removing the immo from the deu e2prom