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Home › Nissan-Datsun › 2006 › Sentra SE-R › Repair and Diagnosis (Single Page) › Engine Performance › System › Engine Control System - DTCS P0447 To P0850 (Qr25DE) › DTC P0451 EVAP Control System Pressure Sensor › Component Inspection › EVAP Control System Pressure Sensor

EVAP Control System Pressure Sensor

  1. Remove EVAP control system pressure sensor with its harness connector connected from EVAP canister. Do not reuse the O-ring, replace it with a new one. 
    2. Fig 1: Removing EVAP Control System Pressure Sensor With Harness Connector Connected From EVAP Canister
    G04192012Courtesy of NISSAN MOTOR CO., U.S.A.
  2. Install a vacuum pump to EVAP control system pressure sensor.
  3. Turn ignition switch ON and check output voltage between ECM terminal 32 and ground under the following conditions.
    EVAP CONTROL SYSTEM PRESSURE SENSOR SPECIFICATION

    Applied vacuum kPa (mmHg, inHg) Voltage V
    Not applied 1.8 - 4.8
    -26.7 (-200, -7.87) 2.1 to 2.5V lower than above value
    CAUTION:
    • Always calibrate the vacuum pump gauge when using it.
    • Do not apply below -93.3 kPa (-700 mmHg, -27.56 inHg) or pressure over 101.3 kPa (760 mmHg, 29.92 inHg).
  4. If NG, replace EVAP control system pressure sensor.
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