mercruiser vortex V6 thermostat housing ?

hotmerc

Seaman
Joined
Aug 13, 2003
Messages
71
on my thermostat housing there are 2 sensors. one side has one wire which i know is for the gauge. on the other side of it there is the other sensor with two wires, a yellow and black wire. does anyone know what that one is for? possibly an engine monitor alarm for overheat?

thnks
 
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