90+ caddy 4.9 Idle control

[Jason Haines]

At least on the 94/95 systems, as I understand it, the ECM still controls
the idle speed and has a target idle speed setting - it just acts directly
on the throttle lever instead of having an IAC motor.


Jason


----- Original Message -----
From: "terryk" <terryk at foothill.net>
To: <gmecm at diy-efi.org>
Sent: Tuesday, July 03, 2001 10:41 AM
Subject: Re: 90+ caddy 4.9 Idle control


> So the ECM has no real control of the idle? Just a kicker?
>
> TK
>
> > It is an odd system but it seems to work. I think they used this type of
> > system up until about 1994 or 1995 on the Northstar engines.
> >
> >
> > > Anyone familiar with the Caddy PFI 4.9L idle controller? It's only two
> > wire
> > > control with a ground and switch (four wires total).More like it's an
> idle
> > > kicker rather than a servo to me.
> > >
> > > The ECM is a 2240. Is this some odd beast?
> > >
> > > Terry
> > >
>
>
> --------------------------------------------------------------------------
--
> To unsubscribe from gmecm, send "unsubscribe gmecm" (without the quotes)
> in the body of a message (not the subject) to majordomo at lists.diy-efi.org
>

----------------------------------------------------------------------------
To unsubscribe from gmecm, send "unsubscribe gmecm" (without the quotes)
in the body of a message (not the subject) to majordomo at lists.diy-efi.org