165 ECM ALDL communications... was Simple SyTy Question

[Marteney, Steven J.]

Is the 165 ECM out of a TPI F-body (1989) one of those that talks first at
160 baud, or is the resistor enough, or ....
Steve


-----Original Message-----
From: Andrew K. Mattei [mailto:amattei at mindspring.com]
Sent: Thursday, December 09, 1999 1:21 PM
To: gmecm at efi332.eng.ohio-state.edu
Subject: Re: Simple SyTy Question


>Resistance between A&B determines the MODE, not the baud rate; its 8192
>always.  No resistor there = NORMAL mode, which is what you want for normal
>serial data reading
>
>Serial data on M only; E is N/C.


Thanks, Barry (and Bruce) for your replies! It's my understanding that some
cars need to be in certain modes in order to enable 8192 baud (otherwise
they default to 160 baud PWM on the wire). I'm clueless on SyTy's, so that's
why I asked the question about the resistor - I didn't know if it was one of
those or not. :)

-Andrew