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Author Topic: Tune has bricked ecu:s....why  (Read 4877 times)
nmd
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« on: July 08, 2020, 01:00:54 AM »

Hi

I been bricking two ecu:s now and i cant tell why...Ofcourse they are spares ..

The eeprom is working perfectly. Nothing is wrong there!

When the tune is flashed and the car start but...  it runs for 2 sec with pedal to the metal and runs up to 2500 rpm.. then you hear klick klick then it dies for 1 to 1.5sec... the runs again for 2 sec.. klick klick then the same again and again and again .. you get it!

But then you try to reflash, it won´t go into bootmode or kwp mode.. seems like a bricked ecu....

I wounder if anyone can help me pointing in the right direction on where i did something wrong...Because im cluless

The car is a Audi A4 quattro 1.8t 190hp -04 and ecu is 8E0909518AS.
« Last Edit: July 08, 2020, 01:43:28 AM by nmd » Logged

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Audi A4 Avant Quattro 1.8ts -04
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nyet
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« Reply #1 on: July 08, 2020, 02:25:01 AM »

Does it work with a stock file?

If so, itemize the modifications you made, map by map.
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nmd
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« Reply #2 on: July 08, 2020, 02:34:48 AM »

Stockfile works...


Modifed stock with maps work....


But i wanted something more so i can get by the yearly inspection of the car like second 02 del evap del left foot braking. And from there it went BAD!


But i cant figure out whats wrong!

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Audi A4 Avant Quattro 1.8ts -04
Audi A3 1.6 -06
Ford Mustang 5.0L -88

And some motorcycles/dirt bikes!
nyet
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« Reply #3 on: July 08, 2020, 02:35:31 AM »

Stockfile works...


Modifed stock with maps work....


But i wanted something more so i can get by the yearly inspection of the car like second 02 del evap del left foot braking. And from there it went BAD!


But i cant figure out whats wrong!



make one change at a time and find out which one causes problems.
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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
nmd
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« Reply #4 on: July 08, 2020, 02:44:02 AM »

Yepp.. that would be the way to go ... but would like to not brick a third or fourth ecu....  ..  ..

ebay runs out of ecus.... Grin
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Audi A4 Avant Quattro 1.8ts -04
Audi A3 1.6 -06
Ford Mustang 5.0L -88

And some motorcycles/dirt bikes!
adam-
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« Reply #5 on: July 08, 2020, 03:02:08 AM »

Get bootmode working first.
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nmd
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« Reply #6 on: July 08, 2020, 03:05:17 AM »

But after the flash ...... nothing works..... and before the flash it was a happy ecu with a working bootmode!



I just bought a new ecu.....
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Audi A4 Avant Quattro 1.8ts -04
Audi A3 1.6 -06
Ford Mustang 5.0L -88

And some motorcycles/dirt bikes!
BlackT
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« Reply #7 on: July 08, 2020, 03:13:59 AM »

Type here list all mods you done, and on wath adress change is made.
If you have xdf,  kp. or Ols even better
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nmd
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« Reply #8 on: July 08, 2020, 04:45:13 AM »

will do it later... must just recall exactly everything i did......
...

have been trying for a while to get a good file.... but it was with xdf and turnerpro

wish i had winols and a good definition file!
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Audi A4 Avant Quattro 1.8ts -04
Audi A3 1.6 -06
Ford Mustang 5.0L -88

And some motorcycles/dirt bikes!
BlackT
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« Reply #9 on: July 08, 2020, 05:49:44 AM »

If you want you can use file from my car. It is also BEX engine code, i made XDF for it. If there is something missing from xdf you need, yust let me know I will add it. Also I can send you my EEPROM if you need it for croshflashing
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nmd
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« Reply #10 on: July 08, 2020, 06:01:00 AM »

Is you ecu the 518as or the us version...  dont rember the vag code?

Now I see... 518AH...

Do u think a crossflash will work
« Last Edit: July 08, 2020, 06:04:20 AM by nmd » Logged

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Audi A4 Avant Quattro 1.8ts -04
Audi A3 1.6 -06
Ford Mustang 5.0L -88

And some motorcycles/dirt bikes!
nmd
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« Reply #11 on: July 08, 2020, 06:01:47 AM »

thanks... will use your xdf as template
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Audi A4 Avant Quattro 1.8ts -04
Audi A3 1.6 -06
Ford Mustang 5.0L -88

And some motorcycles/dirt bikes!
BlackT
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« Reply #12 on: July 08, 2020, 12:11:38 PM »

Croshflash will work. If you have immo problem than I will send you my eeprom
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nmd
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« Reply #13 on: August 12, 2020, 01:31:44 AM »

Got a new ECU from ebay and this one is working great in bootmode! 


Did use my tune file with only map changes... and it´s working again .. with alot of emission errors ofcourse and soo on .. but they will be corrected in time with some trial and errors ......
 

But Nyet i found a "few" address that wasnt the same on my 518AS to yours 518AH..  and some values that are in AH and not AS...  But i think i will have them worked out with AH as a reference.

So my mistake.. from the beginning to not double-check or triple-check everything .... But seems like I on the right way to get it to working now.


Just to redo everything again without errors...I hope!




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------------------------------------------------------
Audi A4 Avant Quattro 1.8ts -04
Audi A3 1.6 -06
Ford Mustang 5.0L -88

And some motorcycles/dirt bikes!
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