EVAP pressure sensor (585)

WARNING: This page is about a different car, the 2003 Saab 9-3. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: Identifying EVAP Pressure Sensor

Courtesy of SAAB-SCANIA OF AMERICA, INC.

Fig 2: EVAP Pressure Sensor Voltage Graph

Courtesy of SAAB-SCANIA OF AMERICA, INC.

EVAP PRESSURE SENSOR SPECIFICATION

Power supply	5 V
Differential pressure
-3.7 kPa ( -0.37 bar)	approx. 0.5 V
0 kPa (0 bar)	approx. 2.5 V
1.2 kPa (0.012 bar)	approx. 4.5 V

The pressure sensor determines the difference in pressure between the tank and the atmosphere, and supplies the control module with a proportional voltage.