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Hey Guys,
Have yall made any progress on this lately?
I have several hi peformance and stock bin files for this app and a socketed pcm so i can recover if there is any type of data coruption. I...

Anyone?

Just wondering if any progress has been made on a software package
to support the duramax diesel?
This engine has quite a bit of unlocked potential. ???

I put the complete disassembly here http://members.tecinfo.com/~bettyt/Jim/s2disam.txt

Gary,
I am unsure but I Believe this is correct because. Every upload/download I’ve sniffed (DiabloSport,Hypertech,Tech-2) the VIN is always requested right before the seed request.

GM SI2000 is the same service info that GM dealers have in the shops, all it has is manuals, service bulletins
recalls etc.. I think you can buy about the same information on cd-rom from Helm Inc.
...

I found a interface and software that should do what we need, now who wants to spend $1600.00 :o

http://www.dgtech.com/products/jnat.phtml

This is a tech doc on the Motorola MC68CH58 J1850 data link controller. It has alot of info on the J1850 Bus. Almost a poor mans HS3000.
The chip could be very usefull If you could find one.
I cant...

I was working on a sniffer that used a atmega128 which supports vpw but lost interest after someone told me the tech2 upload routine was encrypted. Cryptographic algorithms are way beyond my...