86 4kq idling at 2500RPM

[Todd Phenneger]

I'll move to Vote!
The Aye's have it.  Idle swith it is.  I fully agree.  The
symptoms describe it to a T.
  Good luck.
l8r
  Todd

--- Huw Powell <audi at humanspeakers.com> wrote:
>
> > The bad news is that it now idles at 2500RPM. If I blip it,
> it comes back
> > down to 1300 or so, hovers unevenly + or - 300RPM, then
> shoots back up to
> > 2500 ish.
>
> Seconding Ben Swann, I would first check whether the idle
> switch is
> closing when the throttle is "off".  Without it, the ECU does
> not know
> the engine is idling and does nothing to control the rpms.
>
> > If I unplug the ISV, nothing changes.
> >
> > Same with CSV.
> >
> > The idle air bypass screw on the side of the intake is
> screwed in all the
> > way.
> >
> > The throttle linkage is not stuck.
> >
> > If I unplug the DPR, then the car drops to an unsteady,
> unhappy idle of
> > around 800RPM.
> >
>
> --
> Huw Powell
>
> http://www.humanspeakers.com/audi
>
> http://www.humanthoughts.org/
>


__________________________________
Do you Yahoo!?
Yahoo! SiteBuilder - Free, easy-to-use web site design software
http://sitebuilder.yahoo.com