LeSabre Estate Wagon V8-307 5.0L (1983)
Manifold Pressure/Vacuum Sensor: Description and Operation
Vacuum Sensor
If a MAP sensor is not used, a Vacuum Sensor may be used, although some systems may not use either component. The vacuum sensor produces low
voltage (approximately 1 volt) when manifold vacuum is low, and higher voltages (approximately 4.5 volts) when vacuum is high. Normal output is 0.54
- 0.62 volts with ignition on and engine stopped.