Idle problem SOLVED -Reply

[Derek Daily <ddaily@SMTPGW.MITSUICOMTEK.COM>]

>>> Phil Payne <quk@isham-research.demon.co.uk> - 8/27/97 5:14 PM >>>
Is there any preventive maintenance I can
> do to make sure my ISV will continue to operate?  It seems from the
replies I
> received that a lot of people have had problems with their ISV.

Yup.  Take it off, make up a harness using two 3mm male spade
terminals opened  up slightly, apply 4.5v to 6v on and off to the
terminals to bang the actuator  up and down, and spray through some
carburettor cleaner.  Bosch's instructions  have an underlined
comment that the plunger/disc should _NOT_ be touched with  any
implement.

Let say for example, one does NOT utilize such preventive measures. 
Should one expect replacement of ISV to be a common & practical (C&P)
solution?
Well regarded shop states (1) ISV non-functional (2) OXS non
functional (3) vacuum pump inactive.
Of course, the OXS replacement is C&P, but unsure about ISV and
VacPmp.
I attempted ISV cleaning.  Very short term idle increase, but now
low.
Worried about the 'ol...part's broken...need new one..rationale.
Derek D
86 VW Qtm Syncro
San Mateo, CA