Probably the control unit.  You can keep screwing around with it or do
what I did.  Put a red led on the low pressure switch.  This led MUST go
off when the car is running.  Put a green led on the high pressure switch.
This led MUST BE ON above idle.  In fact, on my '88 with 95k miles it's
"mostly on" at idle.  Just a barely noticible flicker.  I trust what I
can see far more than than that stupid dynamic oil pressure monitor
circuit.

 >From vanagon@lenti.med.umn.edu  Sat Mar 22 02:30:59 1997
 >Date: Fri, 21 Mar 1997 20:36:18 -0600
 >From: Brian Ratliff <Bratliff@hemisphere.neocomm.net>
 >To: Multiple recipients of list <vanagon@lenti.med.umn.edu>
 >Subject: oil light help???
 >
 >HELP again.....
 >
 >My oil light is not working on 86 vanagon....I have check the sending
 >unit...ok....took apart the dash and changed the bulb attached to that
 >strange circuit board with known working bulb???  STILL no oil light???
 >
 >what do i check next????
 >					Thanks Brian
 >
 >					86 gl  and 82 diesel
 >

\\\\////\\\\////\\\\\////\\\\\////\\\\////\\\\////\\\\////\\\\////\\\\////\\\\
Frank Terhaar-Yonkers
Cisco Systems, Inc.
Engineering Services, W2 F3 5
7025 Kit Creek Road  PO Box 14987
Research Triangle Park,  North Carolina  27709
fty@cisco.com   voice (919)472-2101   FAX (919)472-2940
pager (800)796-7363 pin 1008366 -or- fty@airnote.net