Why would you do checksum on a stock file?
99% this is your problem.

If you truly have a full stock read, then write it as-is without fucking with it.

prj i have tried with stock file already.. I have 2 ECUs i have tesed this. on. Im gonna go try more flashing tomorrow. If 2 ECUs are coocked im done.. Going to film some tomorrow..

I have post the immo off eeprom.
Also there is a picture where to check with vcds if immo is really off...
Check on table if immo is off.

If immo is off on table you can disconnect dash and than try start engine with immo off ecu.
Check if than fan still comes on.

With kess if you write in recovery, write ori file.
In recovery mode there will be no checksum done , this Is what we want with ori file.

After having the ECU out of the car for 2 hours I was able to repcoduce the state where it fired up and died insantly. Before i cranked the engine i took a look in the ECU in VCDS and its possible to read "measblocks" now.. huh..

Also checked Immobilizer and I had premission to start and so on.. But i noticed that I lost the connection to this unit after a few seconds. it behaved strange.   Also that channel 91 that i should read cant be done due to non licenced VCDS tool.. soo      arrghh

here your eeprom.

can you please also upload your ori flash? i want to check something.

thanks

br

Ok som new info i got..  I recived an ECU from a friend with a 3.2 from 2004.. its the slightly older ECU..  I just wanted to test with that ECU.. And funny thing is that the ECU fires upp all time with no fans on.. it like its alive.. But the immo will not allow this ECU to start with my BUB...  Its the SP08c3 eeprom on this ECU.. 

Just for the fun of it I soldered a M95160W eeprom from my other ECU on to this ECU and ended up in the same "locked dead fan" state with this ECU aswell...  The ECUs acts as if the chip is dead or damaged..   

I once had another old BUB ECU from 3years ago and that had som damaged eeprom pads.. And that ECU acted in this way aswell... as if there was no eeprom in place..  I have also checked that i soldered the eeprom in the correct way with gnd in right place and so on..

Im going to do a test now to flash the immo from M95 to SP08 chip.. i doubt it will work but just a test..

"This is not for you"  Well that was encurraging words...  As usual from you..  Been on this forum for 8 many years now. And getting used to hear same helping words coming from you   PRJ.   Im doing my best to try to understand.

Soldering chips from diffrent ECU has worked before on this ECU.. The R32 ECU i have now in my TT has worked for 3 years and has a chip from the original ECU. And i have been burning eeprom back and forth on my ecu´s before without any issues...   I have bench flashed both my ECUs and immo eeprom now to original from the read outs before i even started tuning this car and still wont work.  There is more to my problem than just than immo.

And yes you are totaly right.. I have now bought an Ignitron ECU. It´s on its way. I now have 2 BUB ECU´s  for sale    Feels like a big relief to just say good buy to the stock ECU´s   I did learn alot from this.. it wa actually really fun. But im throwing in the towel for now..

Did my best with the time i hade to spend on this.. Learned alot and did not pay single penny to any tuner..

But wait ther is more... I will stay in the forum for some DSG stuff.. So se you around PRJ..

Thanks RBPE, will check it out..