Audi A4 B5 AFN BJ 2000

by **schlayer** » Fri Jul 17, 2015 10:13 am

Anyone knows how to read/write the hexdump from my 038906018FD Bosch Ecu?

With Galletto4 and OBD its not working, for CAN i dont have the right Pinout (80pin ecu).
I have tried a few common combinations but nothing worked.

I have read that this ecu can only be tuned by replaceing the hi/lo chips with programmable ones is this
true?

Thanks for your advise :)

by **mike_service** » Sun Jul 19, 2015 11:17 pm

Hi
Allmost ecu from VAG before year 2000 are with flash 27C1001(PLCC32)flash,you need a proper hw like Beeprog or other and adapter to read such kind of flash PLCC32
Also sometime you have to replace it,becouse these kind of flash are OTP

Mike

by **schlayer** » Mon Jul 20, 2015 11:58 am

Thx for reply a willem gq4 should do the trick for desoldering i will use a hot-air station to not damage anything...

by **Perzan0101** » Tue Jul 21, 2015 10:18 pm

You must be soldered memory 2 x 27f1001 reading and programming of new 2 x 29f010 using the programmer.

by **schlayer** » Mon Jul 27, 2015 1:13 am

Can you share a link where to buy AM29010 having max operating temp 125°
I only find it with max 80 ° max temp thats to low for automotive... :/

by **schlayer** » Mon Jul 27, 2015 1:17 am

Is this flash ok or do i need other ones ?

Thx for advise :)

http://components.arrow.com/part/detail/51322787S685683N4360?region=na&utm_source=FindChips&utm_medium=invListing&utm_campaign=FC2015

by **schlayer** » Mon Jul 27, 2015 1:35 am

hm this one is out of order and production :(

by **schlayer** » Mon Aug 03, 2015 7:59 am

Do i need the 512kb or 1024kb eeproms?

by **schlayer** » Fri Aug 07, 2015 9:54 pm

No answers :(

by **Telwis** » Sun Aug 30, 2015 4:09 pm

Hi,
you need 2 x 28F010 (or 29F010) chips (512kB each) to replace old 27C1001 eproms. But even thoug you will have to remove chips from PCB board for writing with programmer and putting them back into ECO for testing. To make it more easy just mount 2 x PLCC32 sockets on PCB board. This way each chips programming does not require soldering. If you need any more assistance just write.