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Home >> Infiniti >> 2008 >> EX35 Base, AWD >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Engine Control System - DTCS P0451 To P1212 >> P0453 EVAP Control System Pressure Sensor >> Component Inspection
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Component Inspection

  1. CHECK EVAP CONTROL SYSTEM PRESSURE SENSOR
    1. Turn ignition switch OFF.
    2. Remove EVAP control system pressure sensor with its harness connector connected from EVAP canister.

      Always replace O-ring with a new one. 

    3. Install a vacuum pump to EVAP control system pressure sensor.
    4. Turn ignition switch ON and check output voltage between ECM harness connector terminals under the following conditions.
      VOLTAGE SPECIFICATIONS

      ECM Condition [Applied vacuum kPa (kg/cm2 , psi)] Voltage (V)
      Connector + -
      Terminal Terminal
      M107 102 112 Not applied 1.8 - 4.8
      -26.7 (-0.272, -3.87) 2.1 to 2.5 lower than above value
      CAUTION:
      • Always calibrate the vacuum pump gauge when using it.
      • Do not apply below -93.3 kPa (-0.952 kg/cm2 , -13.53 psi) or pressure over 101.3 kPa (1.033 kg/cm2 , 14.69 psi).

    Is the inspection result normal? 

    YES: INSPECTION END

    NO: Replace EVAP control system pressure sensor