cruise control antics

Robert Myers robert at s-cars.org
Tue Jan 11 11:57:56 EST 2005


Nick,

Have you adjusted the wastegate spring perch?  If so, try backing it off a 
little.

At 11:54 AM 1/11/2005 -0500, Nick Lawrence wrote:

>I was going to ask a similar question....
>My '90 200TQA with increased boost, (1.7 bar), changes speed too fast, then
>coasts, (high vacuum) when using cruise in slightly even terrain. doesn't do
>this when boost is near stock. Anyone else experience this?
>Nick
>----- Original Message -----
>From: "Brett Dikeman" <quattro at frank.mercea.net>
>To: <quattro at audifans.com>
>Sent: Monday, January 10, 2005 9:48 PM
>Subject: cruise control antics
>
>
> > The 200q20v has a new trick- unintended cruise control acceleration.  I
> > discovered this for the first time in a couple months coming home late
> > from work and just wanting to do a nice easy cruise home.  I'm pretty
> > sure cruise control worked fine back in October for my trip to Mont
> > Tremblant.
> >
> > I'll set cruise control, and it will maintain throttle for that speed,
> > but as soon as terrain changes, speed jumps alarmingly; it seems to be
> > maintaining throttle instead of speed.  Also- tapping the brake or
> > clutch pedal WILL disengage cruise control (counterindicating a problem
> > with the linkage or vacuum line, and obviously the vent switches work),
> > but the cruise on/off switch will NOT turn off cruise control (yipes!).
> >
> >   Further- in the off position cruise control can NOT be set (ie by
> > pushing the stalk button for ACCEL), which seems to counter-indicate a
> > shorted switch.
> >
> > I'm baffled; never experienced nor heard of this kind of 'failure', and
> > I've got some conflicting symptoms.  Any ideas?
> >
> > Brett
> >
> > --
> > "They that give up essential liberty to obtain temporary
> > safety deserve neither liberty nor safety." - Ben Franklin
> > http://www.users.cloud9.net/~brett/
> >
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>
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>
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