Bentley 97.141 shows the A/C circuit diagram for the 1987 digifant set-up.

And the wire to the idle stabilizer control box is near the bottom left of
the page.... track 16, R/BL wire. What this actually DOES... I do not know.

Since I have recently removed all my A/C components (except the relay for
3rd stage radiator cooling fan) I notice my idle surging, but it really only
is fluttering between around 850-950, at standing idle,  and I can live with
that.  I do not like it, but I cannot remember if it was like this before
the A/C and other parts were replaced (Vanagon has been a "project" for over
a year now).  Too many variables... I too replaced idle stabilizer valve,
control box, AFM, and other toys to correct the strange surging and loss of
power at high speeds... that is now fixed, thank god!!

Anyway, I would appreciate any other tips list members can provide on the
critical electronics between A/C and ECU etc....  Please pMail me if you get
any good leads or further info.

RSF

<�)))>{   <�)))>{   <�)))>{   <�)))>{   <�)))>{   <�)))>{

Robert S. Fish
Salzburg, Austria
1987 Wolfsburg Vanagon 2.1 GL Weekender
1987 Golf Cabriolet
1991 Golf

snipped ---------
...there is supposedly a switch between the AC compressor and the idle
stabilizer valve to increase to bump up the idle with the AC is on, similar
to the full-lock switch for the power steering?

By the way, Bentley shows no such switch for my '87. Does't show controls on
the dash for the AC either.
end snipped --------