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.

Fig 1: Identifying EVAP Canister, EVAP Canister Vent Control Valve & EVAP Control System Pressure Sensor

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Fig 2: EVAP Control System Pressure Sensor Output Voltage Graph

Courtesy of NISSAN NORTH AMERICA, INC.