Lemans FWD L4-121 2.0L (1989)
Manifold Pressure/Vacuum Sensor: Electrical Specifications
Voltage
3.6 to 5.2 V at 1000 to 2000 ft
Note: Note: Apply 10 in. Hg to MAP SENSOR at given altitude
and watch voltage. It should drop 1.0 to 1.5 Volts from
Voltage Specification given.
3.5 to 5.1 V at 2000 to 3000 ft
3.3 to 5.0 V at 3000 to 4000 ft
3.2 to 4.8 V at 4000 to 5000 ft
3.0 to 4.6 V at 5000 to 6000 ft
2.9 to 4.5 V at 6000 to 7000 ft
2.8 to 4.3 V at 7000 to 8000 ft
2.6 to 4.2 V at 8000 to 9000 ft
2.5 to 4.0 V at 9000 to 10000 ft
Sensor Specifications
MANIFOLD ABSOLUTE, VACUUM, AND BAROMETRIC PRESSURE SENSORS
Engines may use one, or a combination of these sensors. All sensors appear the same. Manifold Absolute Pressure sensors have a vacuum line connected
Barometric Pressure Sensors: Measure voltage voltage with ignition on and engine off.
Manifold Absolute Pressure Sensors: Measure voltage with ignition on and engine off. Start engine and apply 10 in./250 mm Hg to unit, voltage should be 1.2-2.3 volts less.
Pressure Sensors: Measure voltage as indicated.
5 volts reference