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Home >> Nissan-Datsun >> 2006 >> Sentra SE-R >> Repair and Diagnosis >> External Pages >> Different car >> Section 6 (Engine Control System (QG18DE)) >> DTC P0451: EVAP Control System Pressure Sensor >> Component Description
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Component Description

WARNING: This page is about a different car, the 2005 Nissan Sentra. 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: Identifying EVAP Control System Pressure Sensor
G02450022Courtesy of NISSAN MOTOR CO., U.S.A.
Fig 2: EVAP Control System Pressure Sensor Output Voltage Versus Pressure Graph
G02450023Courtesy of NISSAN MOTOR CO., U.S.A.