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Component Description

The EVAP control system pressure sensor (1) detects pressure in the purge line. The sensor output voltage to the ECM increases as pressure increases.

This illustration is a view from under vehicle
EVAP canister (2)
EVAP canister vent control valve (3)

Fig 1: Identifying EVAP Control System Pressure Sensor, EVAP Canister And EVAP Canister Vent Control Valve
Courtesy of NISSAN MOTOR CO., U.S.A.

Fig 2: EVAP Control System Pressure Sensor Output Voltage Graph
Courtesy of NISSAN MOTOR CO., U.S.A.