Hi Gang,

My '88 has a factory installed cruise control system which is having
difficulty maintaining speed.  It works at first and then it's ability
falls off quickly, in less than a minute, as if it is losing vacuum.  I
have check the vacuum lines that I can see connecting to the system,
but I'm not 100% sure I know what all in included.

Can anyone point me to an online diagram that covers the system?  In
particular in the rear.  For instance I don't know what the device in
the right rear corner (just to the left of the taillight) with vacuum
lines and a wire harness going to it is.  It has a vacuum line going to
it (connects to the throttle servo), but there is an unused nipple just
below the one that has the line on it, perhaps it needs to connect to
something?

ANY tips are appreciated.

Ciao,
Gregory Smith
Olympia, WA
'87 Bertone X1/9 Corsa
'88 VW Vanagon