GM ALDL Information

[FJB203 at aol.com]

Greetings,

I just signed up to this mailing list at the recommendation of George Dailey,
so thanks George for a great lead on the GM EFI system(s).

I've been reading throughout the day some of the archived messages associated
with the 
late model GM ALDL data stream, but I couldn't find any conclusion to this
message thread, i.e. a schematic for interfacing a PC to the GM computer,
associated software, and GM codes.

If anyone has this information, I'd be most grateful.  As a "consolation
prize", if this information/interface is not readily available, I would be
more than happy to participate in creating the schematic, if I can get hold
of some additional interfacing requirements.  I'm fairly familiar with the
Motorola 68HC11E9 chip, and its my belief that the GM computer uses one from
the same family.  Also, I've built quite a number of embedded systems (from
an electronics point of view only, software came from a co-developing pal of
mine) in the past, and I can't imagine creating an interface that difficult.

Info on me: (the short version)
I'm transplanting a FWD GM powertrain (3.8L supercharged) to the rear of a
"homebrew" mid-engine vehicle I'm putting together.  In less than a week,
I'll have a web site with all the info on my project, so I won't take up your
space and time explaining it all here.  I have skills in electronics (though
from a hobbyist realm), embedded systems (also hobbyist), LAN/WAN networking,
C programming, and some mechanical ability.

Any leads or information would be appreciated.  Thanks for your
consideration,

Frederic Breitwieser
"HomeBrew Automotive" mailing list guy