ALDL on V6 Cavalier

[rr]

It actually just comes down to timing and the proper chat strings. By
timing I mean delays between the receiving/sending of strings. This
was another area that I had to play with. With the programs mentioned
I would figure that the timing was there. Otherwise they wouldn't
function at all. Might want to try the stock chip. Can't hurt to double
check stuff.

BobR.


Eric S wrote:

> Ok, this is different from the request information that I have.  I still
> can't get this to work with either EFIlive, or carchat.  Is there anything
> else that I need to know?  If it makes any difference, I have made some
> programming adjustments to my chip.
>
> >From: rr <RRauscher at nni.com>
> >Reply-To: diy_efi at diy-efi.org
> >To: diy_efi at diy-efi.org
> >Subject: Re: ALDL on V6 Cavalier
> >Date: Sun, 16 Sep 2001 10:11:22 -0400
> >
> >
> >I had trouble talking to an $88 mask '730 ECM. What I finally did was
> >to connect to the ECM using a regular scan tool. By tapping into and
> >capturing the data stream I was able to see the required commands.
> >
> >With that information I was then able to connect with the home brew tools.
> >The command bytes were different from any of the others I had seen.
> >
> >The no chatter string:
> >
> >     F0 55 BB
> >
> >The normal ALDL request string:
> >
> >     F0 56 01 B9
> >
> >BobR.
> >
> >Rodney Fulk wrote:
> >
> > > Well if you get it working let me know.. I have an '89 Z24 I would like
> >to
> > > be able to "talk" to.
> > > I tried to get EFlive working with my '94 Caprice and I gave up on it. I
> > > have other SW now to talk to my LT1 but nothing to talk to my Z24.
> > >
> > > -----Original Message-----
> > > From: owner-diy_efi at diy-efi.org [mailto:owner-diy_efi at diy-efi.org]On
> > > Behalf Of Eric S
> > > Sent: Saturday, September 15, 2001 2:04 PM
> > > To: diy_efi at diy-efi.org
> > > Subject: ALDL on V6 Cavalier
> > >
> > > Ok, I am trying to get an ALDL interface cable working on my 1990
> >cavalier
> > > Z24 5 Speed.  I've got a number of different programs, Carchat, and
> >EFIlive.
> > >   I got the cable from AKM, but I can't get the interface to work.  I've
> >got
> > > a sheet which shows the ECM request codes, but no matter how I configure
> > > these programs, I am still having no luck!
> > >
> > > 127730 Computer, ATMF5241 Broadcast code.
> > >
> > > _________________________________________________________________

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