At 08:11 PM 11/8/2002, Randy Charrette wrote:
>There are 3 pins on the back of the water temp gauge. Does anyone know
>which one is the sender pin? I want to hook up my aux. VDO on my new Tiico
>and figure running a wire off the pin is the easiest way. I do not want to
>drill the coolant bottle or otherwise cut, drill or hack anything. I just
>want to get it working with minimal invasion.

The small middle pin is ground, for the blinker circuit.  At least on the
analog-clock versions, the sender is attached to the pin nearest the
high-temp end of the scale, and the other one gets +10v.

But say more about what you're trying to do?  It sounds as though you're
trying to hook up two gauges to the same sender -- that won't work
well.  The gauge that belongs to that sender will read low, and the other
will read -- lower than it would if it were connected by itself.  Could be
low, high or in the middle, depending on the sender.

david

--
David Beierl - Providence, RI
  http://pws.prserv.net/synergy/Vanagon/
'84 Westy "Dutiful Passage"
'85 GL "Poor Relation"