Tuning options for Dodge Mopar

[RobertISaar]

the early OBD2(96 and 97?) GM PCM units are said to have the same port, and it was supposedly capable of dumping the BIN and possibly writing a new one in?

[34blazer]

i have no idea, i was hoping you could shed some light on that?

[enlight22]

bdm will allow you to directly command the cpu... so you would be able to read and write the bin... although a better way to do that would be to hook a logic analyser up to a sct tuner and see how they do it over the obd port... cause these controllers are sealed up tight and i doubt your average person is gonna crack one open and solder directly to the cpu to get access to the bdm interface...

[RobertISaar]

at that point, i'm officially beyond what i know of the 6816s.... one could look up what kind of PROM is being used and see what the programming sequence for it looks like, then write out a program to be uploaded via the BDM link and have the 6816 do that...

http://www.diy-efi.org/gmecm/ecm_info/32bit/dumpflash/

there's the link i remember. it's one option anyways.

[34blazer]

WHAM! right into a brick wall. LOL

[34blazer]

sent a couple of emails out to see if they can help, also joined delcohacking and posted there. shot in the dark, hopefully i can gather more people. Thanks for your help so for Rob, Enlight22.

[34blazer]

well this is it so far lol. im going to study on disassembly and commenting so i can help out more, its just going to take much longer. and from what has been said this far, figuring out a way to upload it via ALDL is another mountain, damn.


http://en.wikipedia.org/wiki/Freescale_68HC16


also, where can i get myself a free copy of IDA?

[enlight22]

aldl is a gm specific thing afaik. we will have to upload via bdm or by reverse engineering the method to do it over the obd port.