FixVault
Home › Infiniti › 2013 › FX37 Base, AWD › Repair and Diagnosis › External Pages › Different car › Section 10 (Engine Control System - DTCS P0137 Through P0456) › DTC P0452: EVAP Control System Pressure Sensor › Component Inspection

Component Inspection

WARNING: This page is about a different car, the 2013 Infiniti FX50. However, it is still accessible from the selected car via links, so may be relevant.
  1. CHECK EVAP CONTROL SYSTEM PRESSURE SENSOR 
    1. Turn ignition switch OFF.
    2. Remove EVAP control system pressure sensor with its harness connector. Refer to "VK50VE: EXPLODED VIEW ".

      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.
      ECM Condition [Applied vacuum kPa (kg/cm2 , psi)] Voltage (V)
      Connector + -
      Terminal Terminal
      F111 80 70 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.
      • Never 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. Refer to "VK50VE: EXPLODED VIEW ".

About FixVault