INTAKE SYSTEM ON-VEHICLE INSPECTION


  1. CHECK TURBOCHARGER PRESSURE


    1. A01CHFHE01

      Warm up the engine.

    2. Using a 3-way connector, connect SST (turbocharger pressure gauge) to the hose between the turbo pressure sensor and the No. 1 air hose.

      SST
      09992-00242

    3. Depress the clutch pedal, and then fully depress the accelerator pedal. Measure the turbocharging pressure at maximum engine speed (approximately 3500 to 3600 rpm).

      Standard pressure
      10 to 20 kPa (0.1 to 0.2 kgf/cm2, 1.5 to 2.9 psi)
      If the pressure is less than the minimum, check the intake air and exhaust system for leakage. If there is no leakage, perform the "Check Motor for Turbocharger Control Operation" procedure below. If the result is not as specified, replace the turbocharger.

  2. INSPECT TURBO PRESSURE SENSOR


    1. Inspect the power source voltage.


      1. Disconnect the sensor connector.

      2. Turn the ignition switch to ON.

      3. Measure the voltage between terminals T2-3 (VC) and T2-1 (GND) of the wire harness side connector.

        Standard voltage
        4.5 to 5.5 V

        If the result is not as specified, inspect the wire harness or ECM Click here.

      4. Turn the ignition switch off.

      5. Connect the sensor connector.

    2. A01CIWXE11

      Check the power supply.

      Text in Illustration
      *1 ECM

      1. Turn the ignition switch to ON.

      2. Disconnect the vacuum hose from the turbo pressure sensor.

      3. Connect a voltmeter to terminals E23-28 (PIM (+)) and E22-28 (E2 (-)) of the ECM.

      4. A01CHFHE01

        Using SST (turbocharger pressure gauge), apply the following amount of pressure.

        SST
        09992-00242

        Measure the voltage.

        Standard Voltage

        Applied Pressure kPa (kgf/cm2, psi)

        		 Specified Condition
        93.0 (0.95, 13.5) 0.25 to 0.40 V
        150 (1.53, 22) 1.0 to 1.4 V

        If the result is not as specified, replace the turbo pressure sensor.

      5. Turn the ignition switch off.

      6. Connect the vacuum hose.

  3. CHECK MOTOR FOR TURBOCHARGER CONTROL OPERATION


    1. Remove the No. 1 turbo insulator Click here.

    2. Check the stroke.

      Note

      Make sure that the motor connector is properly installed.


      1. Turn the ignition switch to ON and then off.

      2. Check the turbocharger control actuator (DC motor) operation. Check that the actuator rod stroke is as shown in the illustration below.

        Note

        Never loosen or tighten the fully closed stopper lock nut.

        A01CHXPE04
        Text in Illustration
        *1 Lock Nut *2 Fully Closed Stopper
        *3 Motor Rod - -
        *a Motor Rod Stroke (mm (in.)) *b Ignition Switch off Time (sec.)
        *c Fully Closed Stopper Contact - -

        If the result is not as specified, check the ECM Click here and turbocharger control actuator.

  4. INSPECT TURBOCHARGER CONTROL ACTUATOR

    A01CJ7AE03

    1. Check the voltage of the turbocharger control actuator.


      1. Turn the ignition switch to ON.

      2. Measure the voltage of the actuator.

        Standard Voltage
        Tester Connection Specified Condition
        T8-3 (+B) - Body ground 9 to 14 V

        If the voltage is not as specified, check the wire harness and connector.

    2. A01CHH9E05
      Text in Illustration
      *a Wire Harness Side

      Check the resistance of the wire harness side connector.


      1. Turn the ignition switch off.

      2. Disconnect the T8 turbocharger control actuator connector.

      3. Measure the resistance.

        Standard Resistance
        Tester Connection Specified Condition
        T8-6 (GND) - Body ground Below 1 Ω
        T8-1 (CANH) - T8-4 (CANL) 105 to 135 Ω

        If the resistance is not as specified, check the wire harness and connector.

    3. Connect the T8 turbocharger control actuator connector.