Checksum
Thread Starter
Drifting
Joined: Jun 2001
Posts: 1,625
Likes: 1
From: Zagreb, Croatia
Checksum
From what address to what address is checksum calculated
and what algorythm is used to calculate checksum.
My tuner is having some problems and I would really need
this infos to get the engine running good.
It would be also great if somebody knows at what addresses
are what maps located.
Thanks a lot!
and what algorythm is used to calculate checksum.
My tuner is having some problems and I would really need
this infos to get the engine running good.
It would be also great if somebody knows at what addresses
are what maps located.
Thanks a lot!
Melting Slicks
Joined: Aug 2003
Posts: 3,394
Likes: 393
From: Lakeville MI
I think WinBin includes a check sum utility, but I haven't used it in a long time, being spoiled by the TunerCat editor CATS. This shouldn't be too hard to find, though.
It is also possible to disable the checksum failsafe, by changing the ecm type to engineering mode within the bin file. Sorry don't have my laptop here with all the info on how to do this (haven't tried it personally). I will reply once I have access to my laptop if no one else chimes in first.
It is also possible to disable the checksum failsafe, by changing the ecm type to engineering mode within the bin file. Sorry don't have my laptop here with all the info on how to do this (haven't tried it personally). I will reply once I have access to my laptop if no one else chimes in first.
Melting Slicks
Joined: Aug 2003
Posts: 3,394
Likes: 393
From: Lakeville MI
Hello Sliding, sorry for the delay
This information pertains to ecm type 32b
With a hex editor, change the following:
Byte 08: $32 -> $AA
This should bypass the checksum test.
According to my information, the checksum consists of 2 bytes (located at
addresses 06 and 07) and is the sum of address $C008-$FFFF.
Note: I haven't verified this.
This information pertains to ecm type 32b
With a hex editor, change the following:
Byte 08: $32 -> $AA
This should bypass the checksum test.
According to my information, the checksum consists of 2 bytes (located at
addresses 06 and 07) and is the sum of address $C008-$FFFF.
Note: I haven't verified this.
