Pressure sensor, EVAP (585)

WARNING: This page is about a different car, the 2001 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: Pressure - Voltage Graph

Courtesy of SAAB-SCANIA OF AMERICA, INC.

TECHNICAL DATA - EVAP Pressure Sensor

Location		On fuel tank by fuel pump
Power supply	V	5
Differential pressure
-2.5 kPa (-0.25 bar)	V	approx. 0.5
0 kPa (0 bar)	V	approx. 2.5
2.5 kPa (0.025 bar)	V	approx. 4.5

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