Diacom plus on Pentium laptops

[TBK]

Hi Tom,

An 8086 will work. The 80286 is not the problem. This is slow stuff.

First, make sure the parallel port on the PC is in bi-directional mode (if
you have a choice).

Second, does it say "Linking to vehicle"? If it says "Vehicle Communication
Cable not found, switch to LPT2: in the configuration section of Diacom.
Yes, some portable see them swapped by address.

Third, if you are talking to a 7165 ECM in a Vette or some Camaro's, it is
likely pins E and M need to be swapped. GM couldn't make up their minds for
a couple of years there. 86 to 92 may be affected by this.

Fourth, linking could take up to 10 seconds.

Fifth, switch the Diacom mode to ALDL, turn the key to run, but don't start
the car, and try linking. If weird stuff starts happening under the hood
(fans on, IAC cycling), the cable is communicating, but Diacom is choking on
the link section. Now it gets tricky.

TK

terryk at foothill.net

-----Original Message-----
From: TWong29770 at aol.com <TWong29770 at aol.com>
To: diy_efi at efi332.eng.ohio-state.edu <diy_efi at efi332.eng.ohio-state.edu>
Date: Sunday, July 26, 1998 6:21 PM
Subject: Re: Diacom plus on Pentium laptops


>Terry,
>
>I tried that, and also from the boot prompt I had it boot in DOS as well,
it
>tries to link but it won't.  I guess the pentium 266 is just too fast for
it's
>archaic timing structure.  Looks like I need to go out and find a 486
laptop
>that someone wants to get rid of for cheap!
>
>Tom
>