[urq] Oil pressure switch : why 2 ?

Ado Sigal a.sigal at bluewin.ch
Mon Mar 27 19:19:21 EST 2006

Louis-Alain Richard wrote:

>Only two cars in my driveway, but so many questions...
>Eric's car has two (2) oil pressure switches on the driver side of the
>block; one white, one black (or brown). However, only one is connected
>to the blue-black wire. And I can't find another wire for the other
>Bentley shows only 1 switch, a 0.3 bar unit, on track 179. Was this
>second switch installed only to plug an empty hole ? 
In short yes, the white switch isn't used on cars with speaking 
computer, only low press one. Perfect for o/p gauge conversion which you 
mentioned, but you'll have to run separate wire for that purpose. If you 
are going to use CGT (and others) type sender, it comes with press. 
sender and the press. switch. Unfortunately, the press. switch is for 
high press (white switch value), so the low press that is connected now, 
should remain.



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