hi everyone.
my car is SPARK M400, and it use ACDELCO E84 ECM. now i need a map pack for this ECM. please inbox me if you have , thank you very mucj
Search found 23 matches
- Mon May 24, 2021 8:10 pm
- Forum: Delco ECU Conversions
- Topic: ACDELCO E84 MAP PACK
- Replies: 0
- Views: 6099
- Fri Feb 26, 2021 11:47 pm
- Forum: Wanted
- Topic: Need to buy ACDelco E84 checksum fomular
- Replies: 0
- Views: 2435
Need to buy ACDelco E84 checksum fomular
Hi everyone
I have Spark with ACDelco E84 ecm. I need modify some byte in calib segment (like name of segment) but i don’t know how to calculate a segment checksum.
Anyone have this checksum fomular please sell it for me. Thank you very much
I have Spark with ACDelco E84 ecm. I need modify some byte in calib segment (like name of segment) but i don’t know how to calculate a segment checksum.
Anyone have this checksum fomular please sell it for me. Thank you very much
- Tue Feb 23, 2021 5:32 pm
- Forum: Engineering and Reverse Engineering
- Topic: Need to find AC DelCo E84 ECM Calib file checksum algorithm
- Replies: 4
- Views: 3367
Need to find AC DelCo E84 ECM Calib file checksum algorithm
hi everyone. i have Ecu AC Delco E84 for spark M400 and some file calib of this. now i need modify some byte on calib file but i can't not realize what is algorithm checksum of this file. please help me find checksum fomular. thank you very much. i have 3 file with 1 purpose 25202848, 25202950, 2520...
- Wed Jan 20, 2021 4:37 pm
- Forum: US ALDL ECUs
- Topic: GM BCM programming how to calcualte checksums?
- Replies: 11
- Views: 18217
Re: GM BCM programming how to calcualte checksums?
Way late to the party but I just started looking at BCMs.. this might help out someone.. load the file into a hex editor, highlight everything but the first 2 bytes(08 D8) and then get your checksums for the selection.. Find the sum of the Big-Endian 16-bit values and get the last 2 bytes.. (f728) ...
- Wed Jan 20, 2021 4:35 pm
- Forum: US ALDL ECUs
- Topic: GM TCM Checksum Calculation
- Replies: 28
- Views: 19954
Re: GM TCM Checksum Calculation
Nope still just a "PIECE" of the full binary hi, i can't find ecu file. i just edit calib file. like this short file ff ff ff ff 00 00 00 00 00 00 00 79 0d 1f 2c a1 08 20 01 80 6b 28 41 42 ff ff 43 00 08 32 35 31 39 33 32 35 36 48 00 1d e2 00 04 b0 05 10 05 01 01 05 01 0f 05 0b 0d 0a 06 0...
- Thu Jan 07, 2021 6:10 pm
- Forum: US ALDL ECUs
- Topic: GM TCM Checksum Calculation
- Replies: 28
- Views: 19954
Re: GM TCM Checksum Calculation
isn't this one?VX L67 Getrag wrote:NOPE.... not a complete file just the same 3 zipped files you posted earlier with the .tbl file
need a complete binary file as it comes off the controller
- Thu Jan 07, 2021 5:34 pm
- Forum: US ALDL ECUs
- Topic: GM TCM Checksum Calculation
- Replies: 28
- Views: 19954
Re: GM TCM Checksum Calculation
this is complete of file I took from website and not edit anythingVX L67 Getrag wrote:Can you get a complete original file for that same software/calibration type... then you will know the only section that needs to be summed?
- Wed Jan 06, 2021 5:46 pm
- Forum: US ALDL ECUs
- Topic: GM TCM Checksum Calculation
- Replies: 28
- Views: 19954
Re: GM TCM Checksum Calculation
i slip this file to 2 by segment fFFFFFFFFF, and check checksum for 1 segment, but it not calculated. i will try another wayantus wrote:The same ID is also here at the start of the file. Maybe were looking at a table of contents as well, at one or the other end.
- Wed Jan 06, 2021 5:17 pm
- Forum: US ALDL ECUs
- Topic: GM TCM Checksum Calculation
- Replies: 28
- Views: 19954
Re: GM TCM Checksum Calculation
There is a bunch of text in the middle of the file that does not look like calibration data to me, possible write up some code that does the 16 bit checksum and if it's wrong then it steps another byte and tries again.. It'd take a little while but doable.. What I don't know is if that's the whole ...
- Wed Jan 06, 2021 2:17 pm
- Forum: US ALDL ECUs
- Topic: GM TCM Checksum Calculation
- Replies: 28
- Views: 19954
Re: GM TCM Checksum Calculation
I googled "AW 5AT C100 VM20S" which is in the file near the end, and landed on this: https://translate.google.com/translate?hl=en&sl=ru&u=https://forums.drom.ru/daewoo-winstorm-chevrolet-captiva/t1151837123-p15.html&prev=search&pto=aue There they say op-com is reporting fo...