Is the oil pressure sending unit, in a 1990 Chevy k1500 350, (GAS) engine just a sensor, or is it a switch, as well?
I have a 1990 Chevy k1500 truck, with a 5.7 litter,
(350ci) gasoline engine. My question is the oil
pressure sending unit just a variable resistor that
yields to an actual oil pressure gauge, or is it an
actual switch that closes to make a circuit for a
light. If not, then, are these types of
(sensor/switch) combos available for purchase?
The ECM will not be a factor, it is being completely
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