MANIFOLD ABSOLUTE PRESSURE SENSOR ON-VEHICLE INSPECTION

PROCEDURE


  1. INSPECT NO. 2 TURBO PRESSURE SENSOR


    1. Remove the No. 2 turbo pressure sensor.

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    2. Connect the No. 2 turbo pressure sensor connector.

    3. Connect the GTS to the DLC3.

    4. Turn the engine switch on (IG).

    5. Turn the GTS on.

    6. Enter the following menus: Powertrain / Engine / Data List / Boost Pressure Sensor.


      Powertrain > Engine > Data List
      Tester Display
      Boost Pressure Sensor

    7. Read the value of the Data List item "Boost Pressure Sensor".

      Tech Tips


      • Standard atmospheric pressure is approximately 101 kPa (abs) (15 psi (abs)).

      • For every 100 m (328 ft) increase in altitude, atmospheric pressure drops by approximately 1 kPa (0.15 psi). This varies by weather.

    8. B007XO9

      Connect a vacuum pump to the No. 2 turbo pressure sensor.

    9. Read the values in the Data List when applying vacuum and pressure to the No. 2 turbo pressure sensor using the vacuum pump.

      OK
      The values indicated on the vacuum pump when applying vacuum and pressure and the values Data List are nearly the same.

      Note


      • Do not apply a pressure of 50 kPa (0.5 kgf/cm2, 7.3 psi) or more to the No. 2 turbo pressure sensor.

      • Do not apply a vacuum of 50 kPa (375 mmHg, 14.8 in. Hg) or more to the No. 2 turbo pressure sensor.

      Tech Tips

      The pressure value displayed in the Data List is the pressure value indicated on the vacuum pump with the atmospheric pressure added.

      Example:
      Vacuum Pump Pressure Value Atmospheric Pressure Value Equation Data List Value

      Vacuum of 30 kPa (0.3 kgf/cm2, 4.4 psi) applied

      100 kPa (1.0 kgf/cm2, 15 psi)

      		 -30 + 100 = 70

      70 kPa (0.7 kgf/cm2, 10.2 psi)

      Pressure of 30 kPa (0.3 kgf/cm2, 4.4 psi) applied

      		 30 + 100 = 130

      130 kPa (1.3 kgf/cm2, 19 psi)

    10. Install the No. 2 turbo pressure sensor.

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