Component Description

WARNING: This page is about a different car, the 2008 Infiniti QX56. However, it is still accessible from the selected car via links, so may be relevant.

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

Fig 1: Applying Battery Voltage Between Terminals Of 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.