ECM #

[Wayne Johnson]

This got me to thinking, my neighbor has a big block (454) rollback that has 
a 747, but I didn't pay attention to the rest of the numbers. The thing is 
it does not have a knock sensor. No wire in connector, so it appears that it 
never had a knock sensor. I read the bin and the knock tables are zeroed 
out. It also idles in open loop. I think the bin is anty, have a copy of it 
at home.


>From: Shannen Durphey <shannen at grolen.com>
>Reply-To: gmecm at diy-efi.org
>To: gmecm at diy-efi.org
>Subject: Re: ECM  #
>Date: Mon, 01 May 2000 00:00:41 -0400
>
>Hello, rr.
>The 1228747 is typically used in a big block chebby truck, and I've
>seen it used with large gvw smallblock equipped trucks.  It's not the
>same as the 7747, but I can't tell you what the differences are.
>Shannen
>
>rr wrote:
> >
> > I do believe it is Bruce. I've been holding onto
> > four numbers for the '747 (for boneyard hunting):
> >
> > 1227747    the original
> > 1228747    (Not sure about this one)
> > 16121154 new service number?
> > and
> > 16133288, IIRC, a newer version of the '747,
> >  possibly a different board inside, but functionally
> >  the same.
> >
> > BobR.
> >
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