747 ecm ? Vs 1226867

[Stowe, Ted-SEA]

howdy.

I am putting around putting the pieces together to put my 85 sunbird TBI in
my mg, however I worry about the fact that I see more dialog here about the
'747 ECU than the one I have, 1226867(4cyl). should I scrap my ECU and go
find a 747 and have someone program a prom for me for 4 cyl  ? or stand pat
with what I have ? I liked the illusion of safety in that it came from a 1.8
liter engine and I now have the manual trans eprom in it. I would think the
'747 wouldn't know about my particular throttle body ?

thanks, Ted Stowe

-----Original Message-----
From: Don.F.Broadus at ucm.com [mailto:Don.F.Broadus at ucm.com]
Sent: Tuesday, November 03, 1998 8:40 AM
To: diy_efi at efi332.eng.ohio-state.edu
Subject: RE: 1227746 ECM


Thanks for the advice, I'll stick with the 7747. Where could I get a 350
auto PROM for a 7747, I'm helping convert a 1981 
Chevy truck to TBI. The ECM I have now is a 7747 ATKX from a 1990 Astro Van
4.3L V6 . 

 
Thanks for the help. 
 
Don










	-----Original Message-----
	From:	Bruce Plecan [SMTP:nacelp at bright.net]
	Sent:	Monday, November 02, 1998 3:46 PM
	To:	diy_efi at efi332.eng.ohio-state.edu
	Subject:	Re: 1227746 ECM


	-----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: Monday, November 02, 1998 4:06 PM
	Subject: 1227746 ECM


	>I found a 7746 ECM ( ACDW)  at the local U-Pull- IT .   The donor
car was a
	>4.3L TBI 1987 Grand Prix this set up seems to be the same as a 1987
Astro
	>Van with a 7747 ECM  are the ECM's plug and play ?

	You really need to get a wiring diagram out, and look.  There are
	sometimes small but meaningful changes from ecm to ecm.  They
	are not the same.  In the passenger car versions they use a IAT.
	Also, the tables will be moved around some I beleive.  If you want
	to tinker with a 747 you need to have a 747.  Some of the advanced
	guys can play some games with adapations, but if your just starting
	out learn the baxics first.

	I would also appreciate
	>some help
	>With downloading Bin files, Can a PROM be burned from the data in
the
	Bin's.

	When the correct corresponding parts are used, yes.
	>?
	>
	>Thanks
	>
	>Don
	>