[Shotimes] High idle problems

[Paul Nimz]

>What happens when the IAC is disconnected with the car running?

That's a good point.  If it is a vacuum leak then disconnecting the IAC at hot
idle will do nothing.  If the IAC is controlling the air the engine is using
then it  will die or severely stumble.

Paul


On 10/11/2005 12:03:31 PM, clubairth@bellsouth.net wrote:
> Don:
> I also would suggest a vacuum leak? He has changed a LOT of parts without
> having a good reason. Did he just start changing stuff? What happens when
> the IAC is disconnected with the car running?
> Does he get the all clear when running the PCM test? I would also run the
> cylinder balance test to gather more information.
> .
> .
>
>
>
> > Vacuum leak.  It will only show a code when it is so bad the PCM can no
> longer
> > compensate.  And then it will show a rich code=the PCM has added all
> the
> fuel
> > it can but the O2s still
> aren't happy.
> >
> > Paul
> >
> >
> > On 10/11/2005 9:11:58 AM, Donald Mallinson (dmall@mwonline.net) wrote:
> > > Got a note from a member that is having problems with their 95 ATX SHO
> > > with high idle.
> > >
> > > It is at 1000 rpm at a stop in gear, and 1500-1700 in neutral.
> > >
> > > On light acceleration, the car gets to 35 mph at about 2000 rpm and
> > > doesn't
> want to shift to second gear.
> > >
> > > The owner recently replaced the IAC valve, TP sensor, VSS sensor,
> upper
> > > manifold gasket,
> > >
> > > Ox