'165 Minimum Air Question...

[rr]

Should be a circuit on incoming. Here it is:

StepDrv1.gif
StepDrv2.gif
Stepdrv.txt

Really does come in handy. . .

BobR.


Bruce Plecan wrote:

> Nest question is just get a stepper motor drivers expeimenters kit.
> slow it down some, and you'll never worry about changin pintles again.
> I permanently soldered a IAC connector to it. and Doc had hours of fun
> tinkering with it
> Bruce
>
> > Since it hasn't been mentioned, (and probably the next question...) the
> > easiest way to extend the IAC is to put the ECM into paper-clip test mode
> > for about 30 seconds, then disconnect IAC.
> >
> > Side note unrealted to this thread - don't try and use a 3.1 IAC on a 454
> > TBI throttle body.   Pintle diameter is smaller on the 3.1, pintle will
> pop
> > out of IAC motor when extended....
> >
> > -> Bob Valentine
> > -> bob at tecmark.com
> >
> > At 07:35 PM 2/14/2001 -0500, you wrote:
> > >When you set min air, are you doing it with the IAC disconnected and then
> > >resetting the computer before reconnecting it?  Sounds like maybe
> not...and
> > >the IAC is at max open or damaged.
> > >
> > >You set min air with IAC disconnected and fully extended, then zap the
> ECM
> > >and reconnect it.  The 450rpm you dialed in with no IAC should turn back
> > >into 600rpm or so when the IAC is re-enabled and the ECM takes over idle
> > >speed duty.
> > >
> > >-Kevin
> > >

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