The most common cause of rich running on the 1.9 motor is
caused by the temp-2 sender which is the two-wire sender
located next to the water pump.  Most often, the plug is
corroded and the correct resistance is not being read by the
ECU.  First thing to try is to remove the connector and
clean the contacts with contact cleaner and see if it fixes
the problem.  Also test the resistance of the the sender
while the engine is hot and compare the reading with what is
shown in the Bentley book.  If it is not correct, replace
the sender.

Bill Knight
Raleigh, NC

-----Original Message-----
From: Vanagon Mailing List
[mailto:vanagon@gerry.vanagon.com]On Behalf
Of joe@cedar.net
Sent: Thursday, June 06, 2002 11:20 AM
To: vanagon@GERRY.VANAGON.COM
Subject: Rich mixture/excessive fuel use

I am getting about 10-12 MPG on the Hwy with my '83 1.9L
watercooled FI Vanagon, less in town. The exhaust smells
extremely rich. Engine runs OK. Timing seems to be correct,
though I have no notch on my pulleys and used a ^ shaped
mark on
the flywheel and centered it in the timing hole. Replaced
the O2
sensor, plugs, oil and air filter. Vacuum lines appear
properly
routed and suspect one relaced. Other rubber air lines seem
to
be OK.

Suggestion as to what to be looking for will be greatly
appreciated--and i'll takle anyone who helps me figure this
out
for a Sunday drive:)

Joe Kletch
Milwaukee, WI