LT1 EFI Question

[Eric Elliott]

Hello,
The old GMC pickup had a 1988 TBI EFI system, 1227747, PROM "AMUR".
The new Ford has a PCM that I have found no information on except what is in
the Electrical & Vacuum Manual.
-----Original Message-----
From: Bruce Plecan <nacelp at bright.net>
To: diy_efi at efi332.eng.ohio-state.edu <diy_efi at efi332.eng.ohio-state.edu>
Date: Thursday, April 02, 1998 11:06 PM
Subject: Re: LT1 EFI Question


> Eric Elliott <eelliott at arkansas.net>
>
>
>>Hello,
>>Older GMC ECMs diddled the EGR & looked at injector duration to se if EGR
>>functioned. So it had to actually change AFR via EGR to pass test. Test
was
>>done after engine warm.
>>My new 5.4 L measures EGR flow with a differential pressure transmitter.
>>Another case where a resistor won't fool it.
>>Eric
>
>
>And perchance what ecm would be an example of that?..
>Bruce       When taller Cone Shaped Hat are made, we'll
>                 be wearing them here first at world HQ
>