Vanagon F4-1915cc 1.9L (Water Cooled) (1983)
Oil Pressure Sender: Testing and Inspection
Oil Pressure Switch
Oil Pressure/switch, Checking
NOTE: Engine oil temperature should be 80° C (176° F)
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remove oil pressure switch and install in gauge
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install oil pressure gauge adapter in place of oil pressure switch
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connect wire 1 (blue) of gauge to oil pressure switch and wire of oil pressure warning light 3 as shown
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connect wire 2 (brown) to ground
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turn ignition ON
oil pressure warning light must light up
if NO, switch is defective, replace switch
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start engine
oil pressure warning light must go out at an oil pressure of 0.15-0.45 bar (2-6.5 psi)
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increase engine speed
at 2000 rpm, pressure should be minimum 2.0 bar (29 psi)