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Home >> Infiniti >> 2021 >> Q50 Pure, AWD >> Repair and Diagnosis (Single Page) >> Engine Performance >> System >> Engine Control System (Diagnostics) (3 Of 4) >> Component/Circuit Diagnosis >> Turbocharger Boost Sensor >> Component Inspection >> VR30DDTT engine
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VR30DDTT engine

  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 .
      GNSJMBIA0871Z-871Courtesy 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 deg. C (50 - 86 deg. 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 .