vw bora 1.9 tdi ecu 038906012K problem

**Lexas** · 13th May, 2014, 01:11 AM

'99 vw bora 1.9 tdi
ecu: 038 906 012 K
0 281 010 111

read ecu by obd with mpps. saved original dump. flashed moded dump, all flashing goes ok, after, car dont start, no communication with ecu at all... cant communicate any diagnostic tool, mpps. tried on the bench, same. desolder am29f400bt put on willem programmer, can read/verify, but cant erase and flash ori dump back. after erasing it says error erasing.

Any ideas how to flash ori dump back and make ecu alive again?

**Xram** · 13th May, 2014, 01:35 AM

Does this have an aftermarket radio fitted if so unplug it and try. radio is connected to the eobd plug and after market radios mess this up. see rostech for the issue Ross-Tech: VCDS: Afterrmarket Radio Problem

**2guys** · 13th May, 2014, 03:28 AM

change eeprom............ may be was damaged

**Lexas** · 13th May, 2014, 08:36 AM

Originally Posted by 2guys

change eeprom............ may be was damaged

change 29f400 or just eeprom 24cxx?

**icezero2010** · 13th May, 2014, 02:32 PM

change 29f400

**overs0ull** · 13th May, 2014, 03:37 PM

I thing all with the 29f400 is fine but the willem programmer is really unstable sh.t i have 2 of them all of the failed me most of the time , same like your situation with a lot of chips .
After purchasing new programmer witch is little expensive i don't have any more trublles with any chip .
You can try with new 29f400 of flash it on boot mode up boot pin on 29f400 and make it on the bench and flash it .
If you need i can upload the image how you can make it . Or in google you can fined edc15v/p/vm boot mode .
Regards

**antibisic** · 13th May, 2014, 04:10 PM

Just make recovery in recovery mode on the bench with mpps

**Lexas** · 15th May, 2014, 12:43 AM

Originally Posted by antibisic

Just make recovery in recovery mode on the bench with mpps

tried connect on the bench, mpps says ecu not found...

Now solved with another ecu, but still want to make this ecu alive to get money back... if i buy and solder new empty 29f400, i will be able to connect with mpps on the bench and flash it?

**antibisic** · 18th May, 2014, 04:16 PM

Originally Posted by Lexas

tried connect on the bench, mpps says ecu not found...

Now solved with another ecu, but still want to make this ecu alive to get money back... if i buy and solder new empty 29f400, i will be able to connect with mpps on the bench and flash it?

Are you put your mpps in recovery mode?

**gttuning** · 18th May, 2014, 05:14 PM

you have no com.with ecu because flash is fu...,what you should try first if something happens like that is try to write back ori file,but dont press ecu id just type ori file and write ecu. this will over write your flash and all should be fine.