90+ caddy 4.9 Idle control

[terryk]

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
> >


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