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Title: ABT 8D0907551C Post by: danzzon on December 23, 2019, 05:39:03 AM So i have been posting recently about trying to read my ecu via the obd2 yada yada, however i decided (since everyone said its not worth the work to try to do it via obd) to do it on the bench, could successfully read the file no problem. Read the file and tweaked it a little bit, checksummed with winols and with mpps v13. However when im trying to write the modified file to the ecu it stops at 21%, no problem writing back the original file (writing in boot mode). The chip on the board sits in a socket. So to my question, can i desolder the socket from the board and simply solder to chip to the main board without the socket, flash the original file on it and get it running properly, or do i need to flash an original C-box file, or what needs to be done to run the chip without the socket on the main board to be able to flash my own tune on it.
Title: Re: ABT 8D0907551C Post by: aef on December 23, 2019, 06:09:04 AM Can you provide pictures of the socket? Is it some sort of copy protection or just 1:1 connector?
You can solder the chip directly to the board. if it still fails replace the eeprom content to non ABT. Title: Re: ABT 8D0907551C Post by: nyet on December 23, 2019, 10:29:07 AM Yes, you can do that. But while you're at it, get a 1M ecu and switch to a better defined file if you intend to tune further
Title: Re: ABT 8D0907551C Post by: prj on December 23, 2019, 01:39:56 PM The chip in there is often the wrong layout, and also it might be better to go to a 29F800 ECU as stated here.
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