Netres availability

[Programmer]

If this TBI is just spraying into the bottom of the manifold anyways--is it
really going to matter ?? I've seen some virtual fuel "pools" at the bottom
of some 2.0L TBI stuff--and it seems to still work. If both injector drivers
went to a "single injector"--would that make a big difference ??

Lyndon

----- Original Message -----
From: <WEG1192 at aol.com>
To: <gmecm at diy-efi.org>
Sent: Monday, August 20, 2001 8:48 PM
Subject: Re: Netres availability


> In a message dated 8/20/2001 9:23:51 PM Eastern Daylight Time,
> Sealand at clarityconnect.com writes:
>
> > Are you aware that the 747 ECM alternates injector firings?  I'm sure
> >  that you have very poor fuel distribution with the 747 ECM.  It would
be
> >  much better to stay with the 4 cyl ECM.
> >
> >  Scot Sealander
>
> I agree. What is probably happening is that only two of your cylinders are
> getting a fuel shot and the other two are just tagging along. This assumes
> you are only using one injector driver. This also assumes that you have
the
> ECM bin set up for 4 cylinders, which may not even be an option in the
7747
> bin. What is more likely happening is the ECM is trying to control the
engine
> as a 6 (or 8) cylinder, and therefore the alternate injector firings are
> hitting each cylinder just in a very intermittent way. In other words,
with a
> V8 bin, the ECM thinks the engine is turning only 500 RPM when it is
really
> turning 1000 RPM. This would also put you in a leaner part of the fuel
table.
>
> The bottom line is that a 7747 on a 4 cylinder is a misapplication. What
you
> are running into is that demand for reverse engineered (hacked) 4 cylinder
> ECMs is very sparse. You may have to do your own hacking of a known 4
> cylinder ECM, such as the 165 you already have. Maybe you ask the list for
> other hacked 4 cylinder ECM applications. JW
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