ALDL on V6 Cavalier

[rr]

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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