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Home >> Infiniti >> 2024 >> Q50 Sensory, AWD >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Engine Control System (2 Of 2) >> Component Parts/Circuit Diagnosis >> Turbocharger Boost Sensor >> Component Inspection
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Component Inspection

  1. CHECK TURBOCHARGER BOOST SENSOR 
    1. Turn ignition switch OFF.
    2. Remove turbocharger boost sensor with its harness connector.
    3. Install pressure pump (A) to turbocharger boost sensor SYMBOL .
      GNSDB131796Courtesy of NISSAN NORTH AMERICA, INC.
      CAUTION:

      When insert a pressure pump hose to the sensor, be careful to the damage of the sensor housing.

    4. Turn ignition switch ON.
    5. Check the voltage between ECM harness connector terminals as per the following conditions.
      NOTE:
      • Always calibrate the pressure pump gauge when using it.
      • Inspection should be done at room temperature [10 - 30°C (50 - 86°F)].
      ECM Condition [Pressure (Relative to atmospheric pressure)] Voltage
      (Approx.)
      Bank Connector + -
      Terminal
      1 F142 116 99 0 kPa
      (0 mbar, 0 mmHg, 0 inHg)
      2.03 V
      2 119 125
      1 116 99 40 kPa
      (400 mbar, 300 mmHg, 11.81 inHg)
      2.67 V
      2 119 125

    Is the inspection result normal?

    YES>>

    INSPECTION END

    NO>>

    Replace malfunctioning turbocharger boost sensor. Refer to CHARGE AIR COOLER : Exploded View .