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Home >> Infiniti >> 2004 >> G35 x >> Repair and Diagnosis >> Engine Performance >> System >> 2004 - Engine Control System - Sedan >> Trouble Diagnosis >> DTC P0451: EVAP Control System Pressure Sensor >> Component Description
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Component Description

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: Locating EVAP Control System Pressure Sensor
G00732441Courtesy of NISSAN MOTOR CO., U.S.A.
Fig 2: Output Voltage V/S Pressure - Graph
G00732442Courtesy of NISSAN MOTOR CO., U.S.A.