[s-cars] Stumble/Hesitation at altitude?

[Djdawson2 at aol.com]

In a message dated 12/6/2004 7:29:21 PM Mountain Standard Time, 
matthew.pelkey at gmail.com writes:

> I was just out in Breckenridge for a week with the Avant and noticed
> that it developed a stumble/hesitation while at higher altitudes. I
> live in Madison, WI and have never noticed this happening. 

I used to travel a lot between home (Colorado) and cities at or near sea 
level.  One thing I've noticed, is that the car is much more sensitive to ignition 
maladies at altitude than at sea level.  A car running perfectly down low may 
have misfiring under boost here.  Usually it has been fixed by a set of 
plugs.

Before I figured this out, I was calling my software guy, thinking it was 
something in the tuning.  Possibly, this may have been your issue.
Dave in CO (8820 ft at the house!)