Thanks to all of you who offered so much info and help from all over
the world! The Vanagon list and Syncro list are both  great online (and
off-line) communities of Vanagon junkies, it's amazing. Glad to be a
part of it and hope to reciprocate in some way one day.

Since my initial post yesterday, I have eliminated a few more
possibilities:

ECU- swapped with a working one, no change
AFM- swapped  "     "      "         "    , no change
Distributer/Hall sensor/rotor- swapped, no change
Fuel pressure regulator- tested with gauge and passed all 3 tests in
Bentley manual
Temp sensor- replaced with new, no change
Manifold/vacuum lines- tested with LP for leaks, no change
All electrical grounds and connections I could check were clean, dry
and corrosion-free (this van has never seen salt roads or much in the
way of nasty conditions, it's a California van).

Yet to check:

Idle stabilizer (reads 118ma at all rpms. Bentley says 430 = 20ma. What
is that supposed to mean, 430 to 20ma range?)
Idle Stabilizer control unit (contacts are fine)
Throttle valve switch adjustment- I need to get a very thin feeler gauge
Fuel pump relay
Current supply relay
Injectors?

On we go... any bets on which components or combo of components? Come
on, lets get some wagering on this! I will put a dollar on the idle
stabilizer as the culprit. What do you say?

Keith O
84 Westy "Brownie" Solar Charged Camper FOR SALE! Think I may have a
buyer!
90 Westy Syncro