I just had the engine replaced for the second time in my '87 Vanagon with
about 200,000 miles.  I love this van!  The van is running fine, but once it
is warmed up and I slow down to under 2200 rpm's the oil pressure light and
buzzer sound off.  Once I accelerate back over 2200 rpm's the buzzer stops.

My mechanic tested the actual oil pressure and assures me it's fine.  He
thinks the wires or sensor is not working correctly.  I have never
experienced a problem like this before.  It started with the installation of
the new engine.

Any ideas for me to try?

Mark Sipple
'87 Vanagon
Wolfsburg Edition
Dover, New Hampshire