[Gmecm] ? about pre-efi gm ecm

[dgilbert78 at juno.com]

Hello: My 85 elcamino had a 4.3 TBI factory. Removed the 4.3 TBI,
installed a 350 using the same TBI with 350 injectors. Used same wiring
harness with 1227747 ECM and chip from a 87 350 pick up. Because yours is
a carbed engine I suspect the harness will not work very well. If you
have any other questions feel free to ask
good luck
Darryl..
On Sat, 26 Aug 2006 18:09:25 -0700 (PDT) Rick McLeod
<dunvegan at sbcglobal.net> writes:
> Getting ready to launch a new project: convert 1985 ElCamino 305 4BBL 
> to EFI using TBI
>  
> The current engine uses a 1226865 ECM to control the engine ?? which 
> is appears to be a vacuum control carburetor? I am not finding any 
> reference to information regarding this ECM. I'm sure others have 
> done this conversion, but here's my draft plan. If anyone has done 
> this conversion, can they chime in w/ thier comments, please?
>  
> Use an ECM such as the 747 and a suitable bin, Painless harness, and 
> the throttle body that 'matches' the bin/ECM chosen. Obviously, will 
> need to ensure the sensors match, but this engine already has some 
> in that it is an ECM engine w/ O2, so I assume (dangerously) that it 
> has coolant, manifold pressure, knock (maybe) already that are 
> suitable.
>  
> I'm open to suggestions and guidance to kick start me in selections, 
> unfortuantely most all my experience is w/ the 165 on TPI L98's.
>  
> Thanks in advance for suggestions.
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