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                                                                                   SF-39
              SFI (1GR-FE)   -     THROTTLE BODY


                   THROTTLE BODY                                                    SF1YR-01


                   ON-VEHICLE INSPECTION
                   1.     CHECK FOR OPERATING SOUND
                   (a)    Turn the ignition switch to the ON position.
                   (b)    When turning the accelerator pedal position sensor lever,
                          listen to the running sound of the motor. Also, check that
                          there is no friction sound.
          A23221
                   If operation is not as specified, check the throttle control motor
                   (see page DI-283), wiring and ECM.
                   2.     INSPECT THROTTLE POSITION SENSOR
                   (a) Connect the hand-held tester to the DLC3.
                   (b) Turn the ignition switch to the ON position.
                   (c) When turning the accelerator pedal position sensor lever
                          to the full-open position, check the percentage of the
                          throttle valve opening angle (THROTTLE POS) of the
                          CURRENT DATA.
                          Standard percentage of the valve opening angle:
                          60 % or more
                   If operation is not as specified, check the accelerator pedal
                   position sensor (see page DI-299), the wiring and the ECM.
                   If not using a hand-held tester, measure the voltage between
                   the terminals (VTA1 - E2, VTA2 - E2) of the ECM connector
                   (see page DI-34).
                   3.     INSPECT AIR ASSIST SYSTEM
                   (a) Start the engine and check that the MIL does not illumi-
                          nate.
                   (b) Let the engine warm up to the normal operating tempera-
                          ture.
                   (c) Switch the A/C compressor from ON to OFF, and check
                          the idle speed.
                          Idle speed (Transmission in neutral): 650 to 750 rpm
                   NOTICE:
                   Perform inspection without an electrical load.




                   4.   INSPECT THROTTLE BODY RESISTANCE
                   Using an ohmmeter, measure the resistance between the ter-
                   minals.
                                  Terminal No.                   Resistance
                                 2 (M+)  1 (M-)          0.3 to 100  at 20 _C (68 _F)




M+   M-
          A23222

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