Have you noticed if you are getting black smoke out of the exhaust while
accelerating? It sounds like you are getting a run-away rich condition.
This can be caused by a bad signal from the temp sensor or O2 sensor.
The connections and grounds. Also check the o2 sensor operation with a
voltmeter. Should fluctuate around .2 to .7 volt.

Dennis

-----Original Message-----
From: Vanagon Mailing List [mailto:vanagon@gerry.vanagon.com] On Behalf
Of Jeff Engel
Sent: Tuesday, August 13, 2002 7:15 PM
To: vanagon@GERRY.VANAGON.COM
Subject: 10 MPG ???????????????

Here I am again consulting the unlimited knowledge of the Vanagon
list.Have an 84 Westy 1.9 water cooled , 4 spd. std. While on another
800 mile round trip journey thru the prairies of Saskatchewan with good
weather and no real wind to battle I found at certain times the van
would be surging and almost have trouble keeping 70 mph speed.During
these times I could almost watch my fuel gauge drop.Averaged 10 miles
per gallon for the most of the trip.The best way I can describe the way
it ran would be as if we were in a boat pulling a waterskier and the
skier was cutting back and forth across the wake.We could actually feel
this while driving at 70 mph. It would idle fine but the problem would
get more noticable as you got up to highway speed. I recall seeing posts
about a capacitor that some listees had to solder into an electrical
board perhaps for the air flow meter( although am not sure ) anyhow
maybe this is my problem ??? Any ideas or anybody experience this
comments will be greatly appreciated..

Jeff 1984 Westy