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Author Topic: Reading and writing ME 7.1.1 4Z7 907 551 R  (Read 7936 times)
BlackT
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« on: February 10, 2020, 11:34:58 AM »

I want to make a stg1 tune on audi A6 allroad 2.7 T, BEL engine code
ECU is
ME 7.1.1
4Z7 907 551 R 003
0261 207 769

I asumme that nef moto can't read this ecu. I have galleto 1260, and mpps V16. Witch one is safer to read ecu?
I need some safety advice about this ecu. Is it hard to get this ECU in boot mod, or the procedure is same as me 7.1?
Schould I first get EEPROM with agrub tool if that is possible?
If something go wrong, is this ecu can be restored easy to life like me 7.5
Thank you all in advance, I yust wont to ask before I try anything
« Last Edit: February 14, 2020, 02:31:42 AM by BlackT » Logged
nyet
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« Reply #1 on: February 10, 2020, 05:25:02 PM »

NEF reads/writes that file fine.

Where did you read it couldn't?

Why would you want to read it?

If it's stock, you don't need to read it.

If it's modified, read might be disabled.
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BlackT
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« Reply #2 on: February 11, 2020, 01:14:23 AM »

So there is yust one software for 4Z7 907 551 R, as far I can see? Car is stock, soo I don't need to read it only download from S4wiki that file, tune it, checksum it than write it.

About reading with nefmoto once I try to read A6 3.0 30V I think it was ME 7.1.1. And I didn't manage to read it( everything stock on car)
That is why I ask before atemmpt anything
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macxxx
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« Reply #3 on: February 11, 2020, 11:13:12 AM »

A6 c5 3.0v6 is wideband so i guess its some kind of me 7.5
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prj
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« Reply #4 on: February 11, 2020, 11:38:30 AM »

A6 c5 3.0v6 is wideband so i guess its some kind of me 7.5

ME7.5 and ME7.1 says nothing about whether ECU is wideband or not.
3.0 is either ME7.1 or ME7.1.1.

There is narrowband ME7.5, there is wideband ME7.1.
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macxxx
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« Reply #5 on: February 11, 2020, 03:15:30 PM »

thanks for info
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BlackT
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« Reply #6 on: February 13, 2020, 07:20:31 AM »

On ECU cover is file that i mention on first post.
But today I read ECU info with nefomoto and the file inside ECU is
4Z7 907 551S
So i give up off doing anything.
Someone before my tried to flash this car.  Is it safe to pull this file out ECU for backup, and flash it with original file?
Will i get death code if I read this file with nefmoto?
Ps. sorry for shit camera shots, I dont have betther right now
« Last Edit: February 13, 2020, 07:28:29 AM by BlackT » Logged
nyet
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« Reply #7 on: February 13, 2020, 09:17:32 AM »

yes you may get a death code if you read it with nef.

see the death code thread.
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Blazius
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« Reply #8 on: February 13, 2020, 09:56:43 AM »

Use mpps, at the very least it should do it thru bootmode.
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BlackT
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« Reply #9 on: February 13, 2020, 10:03:24 AM »

And what about mpps? Or galleto in boot mode?
One more question, is death code stored in eeprom?
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nyet
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« Reply #10 on: February 13, 2020, 12:43:05 PM »

why not read the damn thread?

Just write R and call it a day, stop fucking around.
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ME7.1 tuning guide
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Please do not ask me for tunes. I'm here to help people make their own.

Do not PM me technical questions! Please, ask all questions on the forums! Doing so will ensure the next person with the same issue gets the opportunity to learn from your ex
BlackT
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« Reply #11 on: February 13, 2020, 04:09:35 PM »

why not read the damn thread?

Just write R and call it a day, stop fucking around.
I read all 3 or 4 of tread realeted to this problem/ECU. There is no clear word about is that DTC is storred in EEPROM?
And any confirmation about safe reading it with mpps v16 or galleto 1260

Before writing, for safety I must save that flash that is currently on car
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nyet
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« Reply #12 on: February 13, 2020, 04:48:06 PM »

Its not stock?
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ME7.1 tuning guide
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Please do not ask me for tunes. I'm here to help people make their own.

Do not PM me technical questions! Please, ask all questions on the forums! Doing so will ensure the next person with the same issue gets the opportunity to learn from your ex
BlackT
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« Reply #13 on: February 17, 2020, 07:17:30 AM »

Its not stock?
I don't know...  I tryed to read it with MPPS 16, and no luck.
So I decided to full flash R file.
I did it without problem, and I then got P0602, but I can only read that DTC on Nef moto, when I connect VCDS there is no P0602 DTC.
Car is starting without problems and working fine
Soo what is happening?

One more strange problem, car have RS4 injectors.
When I lower down KRKTE  I get so rich mixture that it even could not rev past 4000 rpm with full throtle.
Why mixture become richer if I lower down KRKTE?
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nyet
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« Reply #14 on: February 17, 2020, 10:53:29 AM »

Why mixture become richer if I lower down KRKTE?

Are you serious?

If you can't answer that question yourself you really need to read a few EFI books.
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ME7.1 tuning guide
ECUx Plot
ME7Sum checksum
Trim heatmap tool

Please do not ask me for tunes. I'm here to help people make their own.

Do not PM me technical questions! Please, ask all questions on the forums! Doing so will ensure the next person with the same issue gets the opportunity to learn from your ex
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