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Home >> Nissan-Datsun >> 2004 >> Altima S, Standard >> Repair and Diagnosis >> External Pages >> Different car >> Section 1182 (Engine Control System - DTCS P0222 To P0607 (VQ40DE)) >> DTC P0451: EVAP Control System Pressure Sensor >> Component Description

Component Description

WARNING: This page is about a different car, the 2012 Nissan Pathfinder. However, it is still accessible from the selected car via links, so may be relevant.

The EVAP control system pressure sensor (2) detects pressure in the purge line. The sensor output voltage to the ECM increases as pressure increases.

Fig 1: Identifying Fuel Filler Pipe, EVAP Control System Pressure Sensor, EVAP Canister Vent Control Valve, EVAP Canister And Drain Filter
G08170622Courtesy of NISSAN NORTH AMERICA, INC.
Fig 2: EVAP Control System Pressure Sensor Output Voltage Graph
G08170623Courtesy of NISSAN NORTH AMERICA, INC.