Sim4lke checksum calculation

[ZIOMAL4340]

Hello

Please checksum calculation

Thanks.

[TJLMotorsport]

Which tool you using?

[ZIOMAL4340]

I read and write willem.

winols checks the checksum and says it's okay but not really good, the car doesn't start

[butyrka]

Your checksums are ok.

[PelsonBMW]

probably you bricked your ecu that's why it won't start. Checksum are good but I see couple bits changed in calibration section that might your ecu got stuck

[AVDigitale]

you mod file is wrong for that not start car

[ZIOMAL4340]

Hello friend againI did as you said, I uploaded the original file and the car started reversehow do you think why it iee works

[galiza]

Maybe some kind of willem issue?
Are you using the same Flash (erasing and then programming) or are you using two different memories?

[ZIOMAL4340]

yes i use erasing and then programming
Thanks.

[galiza]

I have tested in winols ecm (tita, 6.3, ultimo csk corrector) and all o them say csk ok. Maybe a issue related to data organization (swapp in willem software).
Hav you tried to read by k-line?

[ZIOMAL4340]

k-line reads not full flashI want to turn off the error p0172

it seems to me that the modification of the file is incorrect

I just uploaded the file to the new flash bone but it's still the samethe first time the car starts but the revs start to wave, ABS esp messages appear and stops workingthe restart fails.

[galiza]

k-line reads not full flashI want to turn off the error p0172

it seems to me that the modification of the file is incorrect

I just uploaded the file to the new flash bone but it's still the samethe first time the car starts but the revs start to wave, ABS esp messages appear and stops workingthe restart fails.





But if you write again the ori file, Does the car run OK?

[ZIOMAL4340]

as I write ori, the car works ok

[galiza]

Then, as long as I know there are two option (or causes).
- After writing the Ecu, you will need perform a some king of configuration. DTCs after witing?
- The data that has been modified are out of the checksum range (this is a fact). You will need adjust manually the checksum. (I think only a few people can do that).

[ZIOMAL4340]

so you can not do anything?

[galiza]

No, I can´t sorry.
What DTCs do you have after writing?

[ZIOMAL4340]

after writing, there is a lot of DTCs but when I write them, none come back

Thanks.

[galiza]

What happen if you read this Ecu in Boot mode? It is a full flash? I yes, maybe then the tool can compute the full checksum in writing.

[galiza]

I don´t know If this can help because may be a 32csk but...

[ZIOMAL4340]

SOLVED

The car has been repaired
the engine vent under the air filter was damaged.

Thanks