Hi everyone,
This is in relation to my 05 Citroen C5R 2.2L HDi 4HX (DW12TED4/FAP) Estate Automatic with Bosch EDC15C2 ECU.
It is a second hand vehicle and I do not know if ORI file I read from it is original one or how much original it is.
As fare as I know first owner had the Steinbauer Power module installed in this car some six ears and 160,000km ago and it is present in this car now, in process of this installation car was extensively Dyno tuned by installer, but I do not know what was remapped then; ECU or Module only, and this car is so smooth to drive and go relay fast if I only want to. I do not think that this car as it is require any additional power gain via ECU remapping.
I am about to write Remove of DPF/FAP MOD file by ECUsafe - into ECU using MPPS cable/software to read and write from and to the ECU and this will be my first ever project to attempt to edit any ECU.
I could be wrong but as fare as I do understand ECUsafe does not do Checksums.
I already know that if the MOD file Checksum is wrong and then file is written into the ECU, the car might not start at the best.
Why am I worried, I should be correcting MOD file checksums before I attempt loading it onto a car.
My problem is that supplied software with MPPS cable I do have, seems to do just that job - Checksum of the MOD file against the ORI file for the car model and correct ECU selected comes up OK in Green:
Cks Zones 11 Corections 0
This give me not enough confidence, since MPPS literature say in supported ECU's list: Citroen,C5,2.2,HDi,Bosch,EDC15C2,Kline,read,write, but no to the Checksum.
I do understand when ECUsafe patched the ORI file then the Checksums of the edited file should be different comparing with ORI file, or am I wrong here?
To keep this risk to a minimum, I will not proceed before I am absolutely sure that Checksum of the MOD file is correct.
Can someone please be able to check this for me if Checksum in MOD file is correct?
Please find in zip file original bin and edited bin files attached.
Thank you for any help or suggestion.
Michael

Ori chk: 6A40
Mod chk: 6762

I checked with WinOLS 2.24 and it seems ok!

Alex.T wrote:I checked with WinOLS 2.24 and it seems ok!

Thank you Alex
I do not have clue how to operate WinOLS or how to check Checksum in WinOLS
But I did get the same result when I loaded my ORI (was 6A40) and Mod (was 6762) files into WinOLS this does not tell me anything,
it also show me that MOD file is 73% original.
How that can be that file is 73% original, and have different CHK number or code and the Checksum is correct?
Does it mean that ECUsafe corrected Checksum when this file got edited and saved?

mod file is 73% original because only 27% of the original was modified by ecusafe... it can't be 0% original because at least software part must be the same... so 73% sounds ok!
if you try to edit a single value with winols in your bin, winols will automatically correct chk.

if you want to absolutely make sure chk is ok:
open mod in winols,
edit one value (eg. edit a 00000 and make it 00001)
save bin -> it will have different chk.
open that bin again
edit that 00001 back to 00000
save bin -> it should have the same chk as your mod

This way you know for sure winols has calculated your chk, and if it's the same, it means chk is good!

Alex.T wrote:if you want to absolutely make sure chk is ok:
open mod in winols,
edit one value (eg. edit a 00000 and make it 00001)
save bin -> it will have different chk.
open that bin again
edit that 00001 back to 00000
save bin -> it should have the same chk as your mod

Good thinking
Thank you

Hello,

Sorry that i m violating your post with my one problems!

I sow your post and i followed Alex's indication regarding checksums. But in my case i don't have a chk. not in the original file not in the mod file. At list that is what Winols is sayng.

I use Mpps 13.2 clone for grabing the map.
Ecusafe for mod.
Car Renaul megan Scenic IV 1.9 dci, Bosch edc16c, 2006

Can u help me whit what to do. also in Mpps i have only the ID, read, and write button. nothing else. like in EDC15 where i can use chk.

Thx,
Alex

sf_alex2003 wrote: But in my case i don't have a chk. not in the original file not in the mod file. At list that is what Winols is sayng.

I use Mpps 13.2 clone for grabing the map.
Ecusafe for mod.
Car Renaul megan Scenic IV 1.9 dci, Bosch edc16c, 2006

Can u help me whit what to do. also in Mpps i have only the ID, read, and write button. nothing else. like in EDC15 where i can use chk.

Thx,
Alex

MPPS does not support Checksums in some cars models/ECUs , if it is not displayed under write option for your car model&ECU then the Checksum is not supported. If you cannot do it in WinOLS that's mean that checksum module is missing or not installed.
your best option is to compress your original file and modified file into RAR archive if you can and post this file on this forum . someone should check it for you.
remember when you will write your modified file into ECU make sure you have battery fully charged or better connect a battery charger if you can and observe voltage is above 12v in LHS corner in your MPPS software if you don't have a charger,
do not open doors just wait couple of minutes till MPPS will finish write cycle, take time and do what software instruct you to do regarding ignition.
Cheers Michael

Put your ORI and MOD into a zip archive and post it

Alex.T wrote:Put your ORI and MOD into a zip archive and post it

this are the files. ori scen and 2 version of Mod. neither Ori, nither Mod have chk.

thx in advance.

x_XP wrote:

sf_alex2003 wrote: But in my case i don't have a chk. not in the original file not in the mod file. At list that is what Winols is sayng.

I use Mpps 13.2 clone for grabing the map.
Ecusafe for mod.
Car Renaul megan Scenic IV 1.9 dci, Bosch edc16c, 2006

Can u help me whit what to do. also in Mpps i have only the ID, read, and write button. nothing else. like in EDC15 where i can use chk.

Thx,
Alex

MPPS does not support Checksums in some cars models/ECUs , if it is not displayed under write option for your car model&ECU then the Checksum is not supported. If you cannot do it in WinOLS that's mean that checksum module is missing or not installed.
your best option is to compress your original file and modified file into RAR archive if you can and post this file on this forum . someone should check it for you.
remember when you will write your modified file into ECU make sure you have battery fully charged or better connect a battery charger if you can and observe voltage is above 12v in LHS corner in your MPPS software if you don't have a charger,
do not open doors just wait couple of minutes till MPPS will finish write cycle, take time and do what software instruct you to do regarding ignition.
Cheers Michael

Thx for the info. u are right about all u say. i observ that in the corner is everything about voltage. this is everything that i know about grabing a map. alternativ surse of power. thx