1989 GMC Sierra Engine Swap - 5.0L to 5.7L

[Shannen Durphey]

Hi, Ken.

Are you still using 305 injectors on the 350?  If so, a stock 350 calibration will
not work.

ASDU and ANLW are calibrations for that vehicle.  ANLW was replaced by ASDU due to
code 32 and/or code 45 setting with no apparent problems.  This may mean the
replacement calibration is essenntially the same but has these trouble codes
disabled.

Shannen

Ken Richardson wrote:
> 
> I recently swapped out the 5.0L in my 1989 GMC Sierra K1500 for a rebuilt
> 1993 5.7L engine. I'm still using the 5.0L ECM and PROM and it's not working
> too badly, but it's not perfect. I would like to burn an EPROM from a 5.7L
> image and maybe do a little tweaking. My problem is I'm not sure what
> broadcast code to start with. Can someone get me started by pointing me to
> some good working 5.7L PROM images for a 1989 to 1991 GMC Sierra K1500
> automatic?
> 
> FYI, my ECM is a 1227747, broadcast code AKTR, PROM ID on a scan tool is
> 4271.
> 
> Any help would be appreciated.
> 
> Thanks
> Ken R.
> 
> ----------------------------------------------------------------------------
> To unsubscribe from diy_efi, send "unsubscribe diy_efi" (without the quotes)
> in the body of a message (not the subject) to majordomo at lists.diy-efi.org
----------------------------------------------------------------------------
To unsubscribe from diy_efi, send "unsubscribe diy_efi" (without the quotes)
in the body of a message (not the subject) to majordomo at lists.diy-efi.org