Spirit V6-181 3.0L SOHC VIN 3 FI (1993)
If there is oil pressure, the ohmmeter should read an open circuit.
To test the sending unit, measure the resistance between the sending unit terminal and the metal housing. The ohmmeter should read open. Start the
engine.
The ohmmeter should read between 30 to 55 ohms, depending on engine speed, oil temperature, and oil viscosity.
If the above results are not obtained, replace the switch.