Oil pressure switch

Bizarre Moderator The artist formerly known as blue74l

12,789 posts · joined Aug 2002 · 7 Oct 2006, 6:59 pm

#542067

I have a 1990 T3 water cooled.
It is actually a 1.9 L with 2.1L running gear

the oil light has stopped comming on.

If i check the oil pressure switches i dont get any volts goilg to them.
Yes - i have discovered they have 2.

With engine off the 0.3bar switch is closed and goes open with the car running.

With engine off the 0.9 bar switch is open and goes closed with the car running

Gathering this is right.

So...................

Where is the Engine Oil Pressure Control Unit??

Do these things break??

Any help appreciated

Futue te ipsum!!!

Bizarre Moderator The artist formerly known as blue74l

12,789 posts · joined Aug 2002 · 8 Oct 2006, 10:13 am

#542230

OK found it on the back of the instrument cluster.

Gathering it is either the LED of the Engine Oil Pressure Control Unit

If it is that i am gathering you just replace the instrument cluster

Or is it easier / cheaper to just wire up a replacement.
Surely it is just like the Type 1 switch set up.
Gathering the 0.3 bar is low oil pressure and the 0.9 bar is high pressure?

Printed circuit just seems to have complicated it.

Any idea what a replacement cluster is worth?

Past expierence???

[ Edited on 8-10-2006 by Bizarre ]

Futue te ipsum!!!

greedy53 Bishop of Volkswagenism

3,062 posts · joined Mar 2006 · 9 Oct 2006, 10:16 pm

#542734

mine dose that also it seems that is common thing with them the wire is usually faulty the fix is to remove the buzzer the light is no worries

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