[urq] WX Engine Oil Pressure Switches

[Alan Pemberton]

Tony

The '84 wiring diagram also shows an oil pressure control unit at tracks 148
to 153 in the Bentley manual but the '85/'86 diagram seems to differ with no
control unit - just a single, 0.3 bar switch connected to the dash warning
light.  I remember the unit you are referring to as my 82 coupe had one that
also gave intermittent false alarms.

Alan
85 urq (Canadian)

----- Original Message ----- 
From: "Tony Lum" <tlum at flash.net>
To: "Alan Pemberton" <alan_pemberton at telus.net>
Sent: Wednesday, December 08, 2004 8:38 PM
Subject: Re: [urq] WX Engine Oil Pressure Switches


> At 08:23 PM 12/8/2004 -0800, you wrote:
> >Steve - it's stock.  VIN FA900778 with a build date of 2/85 and engine
code
> >stamp that reads XWX000 831* which corresponds.
> >
> >It's quite possible that, at some time in the past, the blue/black
connector
> >has been transferred from the lower pressure switch to the higher
pressure
> >switch.  What is strange is that there is no second wire - just been to
have
> >a second look as the engine is apart at the moment, going through its
> >mid-life exhaust manifold crisis.
> >
> >I'll just work on the assumption that the 1.8 bar switch is a plug and a
> >part that I'll never have to replace....
> >
> >Alan
> >85 urq (Canadian)
>
> Alan, my '83 (DA900302) actually has the wiring for the oil pressure
> control warning relay.  The relay however is not installed and the socket
> is jumpered which is correct according to the IST documents.  If you trace
> the wiring, you might find it goes to a blank relay socket in the
auxiliary
> fuse panel.  Sometimes the relay malfunctions like in my coupe GT and
rings
> alarm even if there's no pressure problem.  I went with a 3 gauge panel
and
> pulled the warning relay.
>
> HTH,
>
>
>
> --
> Tony
>
> '80 5KS
> 83 urquattro #900302
> '85 4kq
> '87 5kcstq
> '87.5 coupe GT
>
>