Component Description

The EVAP control system pressure sensor (3) detects pressure in the purge line. The sensor output voltage to the ECM increases as pressure increases.

• Illustration shows the view from under the vehicle.
• <-: Vehicle front
• EVAP canister vent control valve (1)
• EVAP canister (2)

Fig 1: Identifying EVAP Canister Vent Control Valve

Courtesy of NISSAN MOTOR CO., U.S.A.

Fig 2: Sensor Output Voltage VS Absolute Pressure Graph

Courtesy of NISSAN MOTOR CO., U.S.A.