lkomnino
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« on: December 28, 2020, 12:31:50 PM »
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I have read the stickies, but can't find the answer to my query.
Have 4B0907551G from 2001 2.7t AJK with Tip. And want to know if I can flash any other bin into it (as long as it is 1M like original), as AJKs don't have misfire count, and want to troubleshoot an issue.
I have previously managed to dump a complete bin from the Ecu, via kkl cable, in the car.
Also have been confused by contradictory comments regarding, certain info being lost, I believe from Immo, after flashing.
Don't have a spare ecu, but any flash would be an improvement.
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nyet
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« Reply #1 on: December 28, 2020, 04:40:18 PM »
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Yes, you can flash any ME7.1 bin
however, you will lose immo if you choose a bin that does not have immo, and if you choose a bin that has immo, you may need to re-adapt the eeprom or disable immo manually.
8D0-551M does NOT have immo.
Hope that makes sense
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lkomnino
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« Reply #2 on: December 28, 2020, 05:01:51 PM »
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Thanks for putting me straight. Can I pull my immo data from my bin with a hexedit program, and later return it to 'factory'? Just want to be clear as no spare ecu: I can flash a stock 8D0... M bin on, or are there more extensive cloning/Imaging I need to do to take a snapshot of original before anything else?
Have made mistakes before with my saab ecu, and had to boot mode it. So prefer research to action at moment.
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lkomnino
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« Reply #3 on: January 01, 2021, 03:18:01 AM »
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Yes, you can flash any ME7.1 bin
however, you will lose immo if you choose a bin that does not have immo, and if you choose a bin that has immo, you may need to re-adapt the eeprom or disable immo manually.
8D0-551M does NOT have immo.
Hope that makes sense
8D0-551M is manual though. I have a hitachi MAF ready to swap in, but need a Tip bin, that is suitable. would 8D0-551AA be okay? or 4B0907551R? Maybe it's just a matter of preference, but thought it best to check. Thanks again for guiding. |
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nyet
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« Reply #4 on: January 01, 2021, 10:49:05 AM »
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8D0-551L is tip and shares the same map locations as 551M
The others do not have anywhere near as good publicly available map definitions.
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« Last Edit: January 01, 2021, 10:53:07 AM by nyet »
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lkomnino
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« Reply #5 on: March 22, 2021, 06:44:43 AM »
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Finally got hold of another 4B0907551G Ecu.
Put nefmoto Sw on laptop to checkecu info and clear codes, of 'new' ecu.
Couldn't connect, tried original ecu and connected fine.
So opened up the new ecu cover to see this, pics attached.
I've got some ecu loom plugs en route from Poland so I can do a bench setup, but want to know what I should do?
I have built PCBs on a 0603 level before (DAB breakout boards), and hope that the mess in the pics is just surplus flux that hasn't been cleanned with IPA or conformal coating being bubbled off with a hot air.
Any advise welcome, cheers.
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Sandstorm3k
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« Reply #6 on: March 22, 2021, 07:45:03 AM »
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I've came across this aswell.
It's a riser board, basically renders the ECU useless unless you have the tools and knowledge to properly desolder the board and put the flash memory chip back in place.
Some companies used to do this back in the day, which to me seems odd because you can read the software it just won't let you overwrite it.
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lkomnino
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« Reply #7 on: March 22, 2021, 08:36:33 AM »
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Can resolder it, shalll do it Louis Rossman style: TOOOOO much flux!! Found the website for it, 'Key 610 EVC electronic' on back of board: https://www.evc.de/en/product/keys/keys.asp#KEY610One question though: How do I get the chip out? There is an arrow on the plack plastic cover, but is that to close or open?!? ---edit--- Gone got it out safely Also any advantages in having that chip removable? |
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« Last Edit: March 22, 2021, 08:47:59 AM by lkomnino »
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lkomnino
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« Reply #8 on: March 22, 2021, 09:55:08 AM »
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Done, not too bad.
Must be other things involved, as still no response from controller, in vcds.
Shall search for riser boards now...nope nothing.
Hopefully someone in-the-know shall chime in and enlighten me.
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« Last Edit: March 22, 2021, 10:29:57 AM by lkomnino »
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macxxx
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« Reply #9 on: March 22, 2021, 11:24:28 AM »
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check resistors around memory and compare to identical ECU - I had once problem after removing a riser board from Oetinnger , and the resistors where displaced
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lkomnino
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« Reply #10 on: March 22, 2021, 11:28:56 AM »
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check resistors around memory and compare to identical ECU - I had once problem after removing a riser board from Oetinnger , and the resistors where displaced
Shall do, cheers. |
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prj
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« Reply #11 on: March 22, 2021, 11:34:16 AM »
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You need to bootmode flash a valid bin into it now.
You removed the riser, and resoldered the chip. Now the chip has the lines scrambled, so the software inside is trash.
Use a tool in bootmode to flash a valid bin on it, and your ECU should boot.
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macxxx
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« Reply #12 on: March 23, 2021, 03:02:01 AM »
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Prj is right I forgot that after removing I used a programeer to write bin and after that needed to correct resistor positions
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lkomnino
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« Reply #13 on: March 23, 2021, 05:35:35 AM »
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You need to bootmode flash a valid bin into it now.
You removed the riser, and resoldered the chip. Now the chip has the lines scrambled, so the software inside is trash.
Use a tool in bootmode to flash a valid bin on it, and your ECU should boot.
Is there a guide for boot mode? Had a search but couldn't find one in noob guides. Have the bench setup from http://nefariousmotorsports.com/forum/index.php?topic=417.0But obviously want a concrete guide with clear instructions before shorting anything when powered!! Thanks for all this. |
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BlackT
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« Reply #14 on: March 23, 2021, 06:27:45 AM »
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