The other two I.C's in the Memcal

[Bruce Plecan]

-----Original Message-----
From: Steve Ravet <steve.ravet at arm.com>
To: diy_efi at efi332.eng.ohio-state.edu <diy_efi at efi332.eng.ohio-state.edu>
Date: Monday, October 05, 1998 11:34 AM
Subject: Re: The other two I.C's in the Memcal


>Bruce Plecan wrote:
>> 
>> As explained to me, the 18 pin is the netres, which sets the
>> fueling via the redundant fuel device.  For Limp Home Mode.
>> In limp home mode there is no ecm timing control.
>>   The 14 pin is the ESC chip, weither a netres or not I don't know.
>> But, it sets the acoustic footprint that the ecm looks for in
>> appling ESC controls.
>
>I thought ESC was the little black box, about 2" x 2" x .25", that
>mounts inside the engine bay.  It hooks to the knock detector on one
>end, and the ECM on the other....

Those are used on the straight eprom ecms, ie C-3s.  The P-4s
use the memcals, and the ESC is in the memcal.
Bruce

>
>--steve
>
>
>-- 
>Steve Ravet
>steve.ravet at arm.com
>Advanced Risc Machines, Inc.
>www.arm.com
>