4kq Thermo Time Switch lifespan...

[Chris Semple]

> -----Original Message-----
> From: quattro-admin at audifans.com [mailto:quattro-admin at audifans.com]On
> Behalf Of Huw Powell

> >   I'm in the process of getting my Ebay '87 on the road-
> wheelbearings
> > (fun) and cold start issues.  I'm getting no voltage at the
> CSV connecter
> > (the female end, natch) after operating the starter on a
> cold engine which
> > according to the Bently indicates a failed TTS.  Normally
> I'd just buy a
> > new
> > component, but this one costs $75.   My q's:
> >
> > 1.  do they fail?  or, is this likely the issue?
> >
> > 2.  is there some other thing that costs less than $75 and
> could be failed?
> >
> >   Note:  ECU thermosensor is new, CSV fires fine when
> battery voltage is
> > applied.

> the CSV has constant power while the key is on; it is
> *grounded* by the
> thermo time switch.  see if that information gets you any closer to a
> solution to the problem.
> Huw Powell

Which is provided by the connection on the starter motor as I recall. I had
that problem on my '87 4kq, corroded connection at the starter which was
only an issue when it got cold enough to need a cold start valve. Made all
the more difficult to diag since I hardly ever ran that car in the winter!

-Cheers
Chris Semple
Concord NH
'92 S4
   '87 4000q
      '81 Vw Pickup