Wouldn't my crackerjack O2 monitor show that? It does the normal
middle-of-the-range flatline display while the ECU is waiting for the O2
sensor to warm up, then your usual fairly rapid back and forth sawtooth
thing while driving.

On Tue, 2011-04-05 at 15:33 -0700, Karl Wolz wrote:
> If all the city driving you’re reporting is in and around Bend, you
> may very well be running quite rich due to the poor van never really
> warming up.
>
>
>
>
> Karl Wolz
>
>
>
>
>
> ______________________________________________________________________
>
> From: Vanagon Mailing List [mailto:vanagon@gerry.vanagon.com] On
> Behalf Of Rocket J Squirrel
> Sent: Tuesday, April 05, 2011 2:17 PM
> To: vanagon@GERRY.VANAGON.COM
> Subject: Re: Report: gas mileage, in town, 1.9L AT
>
>
>
>
>
> On Tue, 2011-04-05 at 13:48 -0700, Robert Fisher wrote:
>
> > All I can get is E10. I'd be willing to go with the idea that your
> low
> > number may be due to environmental factors beyond your control, but
> I'd
> > still look for mechanical/electrical culprits (misadjusted brakes,
> etc.)
>
>
> Well, jeepers -- if someone wants to volunteer to come to Bend to dig
> more deeply into this, I'm down with that, because everything I'm
> capable of checking has been checked, and I've had the eyes of two
> mechanics on this thing in the past 6 months, both men who know
> Vanagons. There may be something that's been overlooked, but I have no
> idea how to find it.
>
>
> > IIRC there was a thread within the last couple of years that
> compiled a
> > pretty exhaustive list of those things.
>
>
> I was struggling with lousy mileage first half of 2008 and chewing up
> a
> lot of list bandwidth while troubleshooting. Checked into every darn
> thing that everyone suggested. So that might have been me. Turned out
> to
> be the ECU.
>
> Now my highway mileage is fine, even towing my little camping trailer.
> That's 90% of what I use this van for. Takes me a month to go through
> a
> tank of gas in non-camping season. So this isn't a major deal.
> --
> Rocky J Squirrel
>
>
>
> ______________________________________________________________________
>
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>