fuel module

Bruce Plecan nacelp at bright.net
Fri Sep 25 01:57:16 GMT 1998


-----Original Message-----
From: Don.F.Broadus at ucm.com <Don.F.Broadus at ucm.com>
To: diy_efi at efi332.eng.ohio-state.edu <diy_efi at efi332.eng.ohio-state.edu>
Date: Thursday, September 24, 1998 6:39 PM
Subject: fuel module


>I would like to put a 5.7L in place of my 5.0L.
>I have an 1988 GMC 1500. On the 
>747 ECM  wining diagrams, a fuel module is
>on  CK (120 GRY) ECM (B2) the note says 
>some 5.7L all 7.4L. Is the fuel module a time 
>delay relay, that keeps the fuel pump on 
>till oil pressure comes up ?  

After some looking around, I still can't say for sure, but
I'm inclinded to think it's the switch over for a dual
gastank setup.
Cheers
Bruce      
>                                             Thanks Don
>




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