Since 1997, my 84 Westy 2.1 w/Auto Trans has gotten a consistent 16-18mpg,
but then again when traveling it's usually loaded a little more than your
average Westy while pulling a small trailer full of parts/tables/etc., when
heading to a show.  Mileage goes up a tick or so when driving unloaded.

Recommend checking the O2 sensor, replace if needed, as well as the Coolant
ECU Sensor.   Several years ago, my 1.9 ECU failed outside Adrian, TX on
I-40 when coming back from Tennessee and mileage/performance plunged.  Had
a spare ECU, swapped it out and everything returned to normal for the rest
of the trip back to So Cal.

Before Boston Bob passed away, I purchased from him the Euro-spec 1.9 ECU
(025 906 021 F) that does not use the O2 sensor.  A little more power, but
mileage stayed the same, still running that with my stock ECU kept as a
spare.

--
Jim Thompson
84 GL 1.9 "Gloria"
84 Westfalia 2.1 "Ole Putt"
72 411 Station Wagon "Pug"
75 914 1.8 "Nancy"
Full Timing From March 1999 To January 2012
oldvolkshome@gmail.com
http://www.oldvolkshome.com
Find me on Facebook:
http://www.facebook.com/people/Jim-Thompson/100000710343835
***********************************

On Sat, Sep 14, 2013 at 5:44 PM, Karl Wolz <wolzphoto@q.com> wrote:

> Mileage has dropped to 13mpg (usually close to 20).
>
> Also, Occasional hesitation w/ tach drop.
>
> Driving to Seattle next month and could use improved economy. Possibly two
> problems at once?
>
> Going to check O2 sensor. Could be hesitation is ECU? I have a spare I can
> plug in.
>
> Karl Wolz
> Sent from my electronic umbilicus