1228747 vs. 1227747 GM Computer

[Bruce Plecan]

-----Original Message-----
From: EFISYSTEMS at aol.com <EFISYSTEMS at aol.com>
To: diy_efi at efi332.eng.ohio-state.edu <diy_efi at efi332.eng.ohio-state.edu>
Date: Wednesday, November 25, 1998 2:46 AM
Subject: 1228747 vs. 1227747 GM Computer

I thought the difference was the 8747 has IAT, other than program/code
Cheers
Bruce


>Hi Folks,
>      I was looking at a '90 SS454 the other day and noticed it had a 8747
>computer and was curious of the chip so I took it out and was comparing it
to
>the 747.....it uses a 2732 chip like the 747 and checksum location and alot
of
>addresses were either the same or very close by......didn't get a chance to
>look at the code changes though(if any)....Have any of you had an
opportunity
>to look at this??????Did they(GM) just remove the drivers for the lockup
>convertor and rename the computer????Thanks,
>-Carl Summers
>