86 Audi 4kq oil pressure light

[L DC]

Check for the oil pressure wires, specially where they
connect to the sensors; sometimes the connection
is loose or the wire(s) is (are) kinked.

I had a bad connection in my VW QSW's (same
engine/drive train as 4KQ) lower oil sensor and the
low oil pressure light would come on intermittently
with engine vibration.

-Regards,

LDC


--- Tony Hoffman <auditony at gmail.com> wrote:

> The first thing is a oil pressure test, as
> suggested. You can just
> unscrew either of the senders and put the guage in
> the hole for
> testing purposes. Then, if that tests out, hook na
> ohmmeter to the
> high pressure sender and see if it's sending a
> signal that corresponds
> with the light (ground) at high rpm's. If so,
> replace it. If not, you
> may have a bad dynamic oil pressure control on the
> back of the
> instrument cluster. It is a small board plugged
> right into the back of
> it, with three contacts on it.
> 
> 
> Tony Hoffman
> 
> On Jan 17, 2008 5:51 AM, Reginald S. Archer
> <tisi at ufl.edu> wrote:
> > The oil pressure light in my 1986 4kq cs comes on
> at about 2500 rpm or
> > 55 mph.  It also goes off when i get below that
> speed and rpm level.  I
> > think it may be the oil pump, but are there any
> other possibilities?  Is
> > a pressure check the only way to test it?
> >
> > Reggie
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