If the car started correctly after your first write, but refuses to restart after stopping, it's most likely a checksum problem.
To verify this, re-inject the exact same map you programmed previously.
If, after this re-injection, the engine starts normally, this confirms that the checksum calculation was indeed incorrect.
In this case, you simply need to recalculate or correct the checksum before rewriting the file.
If you'd like, send me your file; I can take a look and verify it for you.
And don't forget to click "thank you" if my answer helps you a small gesture that always makes me happy.
To verify this, re-inject the exact same map you programmed previously.
If, after this re-injection, the engine starts normally, this confirms that the checksum calculation was indeed incorrect.
In this case, you simply need to recalculate or correct the checksum before rewriting the file.
If you'd like, send me your file; I can take a look and verify it for you.
And don't forget to click "thank you" if my answer helps you a small gesture that always makes me happy.
(02-12-2025, 07:24 PM)cki30 Wrote: Audi a4 3.0 tdi 2006 edc16cp34 Original Backup needed
HW: 8E0 907 401 AL
SW: 8E0 910 401 p 0020 or 0050
Here is the problem, car came to me already with bad egr delete , map was repaired egr+flaps+dpf+stg1 was done by me.
Car started was driven 1 day all ok, next day customer stopped to put the fuel in and after that car won't start.
No dtc, cranks but no start.
Everything is checked ecu is the problem.
I sent ecu to electronic repair shop and they said ecu is dead injection drivers problem they could not repair it, by new one and clone it.
I did that and same problem with new ecu.
Crank, no start no dtc.
So if someone has ori backup i will be very grateful!
PS
I know that it is software problem, because by chance i had another a4 3.0 that had immo off on his ecu and with that ecu car started.
I did not clone that one because electronic shop told me that my ecu is damaged and i thought simple clone will do the job, and by the time i figured out it is software issue that car was gone.