Good idea to check the compressions of course.
And I presume the reference to O2 sensor means that together with the
AirFlowMeter the mixture will be pretty well right - as long as theres no
suggestion that any adjustment for lack of air density and the dramatic fall
in power that this produces.

----- Original Message -----
From: "gary hradek" <hradek@YAHOO.COM>
To: <vanagon@GERRY.VANAGON.COM>
Sent: Monday, July 08, 2002 6:34 PM
Subject: High elevation adjustments

> Andrew,
>        o2 sensor should compensate for the higher
> elevation.   I would suggest you take the time to do a
> pressure test of each cylinder while you replace the
> plugs.   May be informative.  gary
> Date:    Mon, 8 Jul 2002 09:34:11 -0600
> From:    Andrew Fox <afox@CNR.COLOSTATE.EDU>
> Subject: High elevation adjustments?
>
> I routinely drive my van at elevations ranging from
> 5,000-14,000 feet
> here
> in Colorado.  Above about 8,000 feet i experience loss
> of power such
> that
> I am only able to maintain about 30 mph while keeping
> the engine
> floored
> in second gear.  I know its a crime but i routinely
> drive my van with
> my
> foot to the floor for a half hour or longer while
> going uphill in
> second
> gear (auto tranny).  So my question is are there any
> adjustments I can
> make to have a better high elevation driving
> experience?  Any Colorado
> listees out there that can tell me if they get better
> or worse
> performance
> on some of Colorado's steep/high highways (ie I-70)?
> Going east up to
> the
> eisenhower tunnel on I-70 my max speed is about 30 MPH
> (second gear,
> foot
> to the floor, 2.1L, AT).
>
> Thanks,
> Andrew Fox
> 86 Westy
> Ft. Collins CO
>
>
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