[eliaselias]

Hello i have reduce the mileage for suzuki sx4 2007
i have disassemble dash remove needle and i have desolder eeprom 93c66
i have do the mileage
the problem is that after 3 days all the needle on dashboard stop to work and the word error appear on screen .... i have desolder again the eeprom and resolder it ...same problem the car run well for 2-3 day and after the same error on dash i have do it 3 times ...what do you think the problem is ??? do you think the eeprom is damaged or something else?
i will appreciate any help

[volavka]

Did you try write back original dump ?

[eliaselias]

No i have not try it ... i have try with many other mileage .... i have adjust mileage manualy
i have change the byte 01F0: E1 DB E1 DB E1 DB E1 DB E1 DB E1 DB E1 DB E1 DB
where the next bytes:
E1 DB - is a mileage

i dont know its a weird thing

[pietje001]

Did you used any solder paste? you'd better not, but if you use it, you must clean it very good

[eliaselias]

Yes i have use solder paste ... i have try it again yesterday . this time i have not use solder past and i have clear it well

[eliaselias]

I have resolder it and clean all contact.... i have solder it without any solder past... the dash worked for about 13 hours then dead again .... i guess that the eeprom is damaged

[mimo06]

Presents the original dump just to see

[eliaselias]

There's the dump

[pietje001]

That is dump from dashbook.. (and I read 737.xxx mileage thats wrong, i think the bytes were swapped).
atttached I have another dashbook dump, mileage changed to 121.000, should be fine.

you dont have original dump anymore? thats what is best to have.


what mileage did the tacho read? during the 13hours it did work?


did you check the components nearby the chip? maybe you destroyed something during soldering. (maybe you have good picture?)


Best is not to use soldering fluid at all.. it is very hard to clean perfect and it kan fuck up the soldering.
I see you used tachosoft, best is to check on the forum for etsmartusb or nyo2014. is allows you to swap bytes if neccesary and it reads old mileage so you can check. (but for this you need to put the dump on the computer)

[eliaselias]

Yes you are wright... the byte were swiped.... i have swap again the byte .... i have notice that when i have put the epprom on my adapter 93cxx ... when i press read sometime it show me the data and some time all byte become ff ff ff ff ff ff ff ff ..... and when the byte become all ff ff ff ff ff ff ff ff i write again the data... i thnk that eeprom is fogeting the data .... i have clean very well the dashboard ... and it work for about 13 hours then stop again