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Home >> Lexus >> 2017 >> ES 350 >> Repair and Diagnosis >> Engine Performance >> Remove, Overhaul & Install >> Engine Control System (Service Information) >> Throttle Body >> Installation [07/2015 - ] >> Procedure
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Installation [07/2015 - ]: Procedure

  1. INSTALL THROTTLE WITH MOTOR BODY ASSEMBLY 
    1. Install a new gasket to the intake air surge tank assembly.
      GTY251124Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Install the throttle with motor body assembly and wire harness clamp stay to the intake air surge tank assembly with the 4 bolts.

      Torque: 10 N*m (102 kgf*cm, 7 ft.*lbf) 

    3. Connect the throttle with motor body assembly connector and wire harness clamp.
    4. Connect the 2 water by-pass hoses to the throttle with motor body assembly.
  2. INSTALL AIR CLEANER CAP SUB-ASSEMBLY 
    1. Connect the air cleaner cap sub-assembly to the throttle with motor body assembly with the hose clamp.
    2. Install the air cleaner cap sub-assembly to the air cleaner case with the 2 clamps.
    3. Connect the 3 hoses.
    4. Connect the ventilation hose.
    5. Connect the mass air flow meter connector and wire harness clamp.
  3. ADD ENGINE COOLANT 

    Refer to PROCEDURE - Step 2

  4. INSPECT FOR COOLANT LEAK 

    Refer to PROCEDURE - Step 1

  5. INSTALL V-BANK COVER SUB-ASSEMBLY 

    Refer to PROCEDURE - Step 82

  6. INSTALL ENGINE UNDER COVER RH 
  7. INSTALL FRONT WHEEL OPENING EXTENSION PAD RH 
  8. INSTALL ENGINE UNDER COVER LH 
  9. INSTALL FRONT WHEEL OPENING EXTENSION PAD LH 
  10. PERFORM INITIALIZATION 
    NOTE:
    • Be sure to perform this procedure after removing and reinstalling the throttle with motor body assembly or any throttle with motor body components.
    • Perform the following procedure after replacing the throttle with motor body assembly or any throttle body components. The following procedure should also be performed if the throttle with motor body assembly is cleaned.
    1. Turn the engine switch on (IG) without operating the accelerator pedal.
      NOTE:

      If the accelerator pedal is operated, perform the above steps again.

    2. Connect the Techstream to the DLC3 and clear the DTCs (Refer to DTC CHECK / CLEAR [07/2015 - ] ).
    3. Perform "Inspection After Repair" (Refer to INITIALIZATION [07/2015 - ] ).
    4. Start the engine and check that the MIL is not illuminated. After the engine is warmed up, check that the idle speed is within the specified range with the A/C switch off.

      Standard

      Condition Engine Idle Speed
      A/C switch off 600 to 700 rpm
      NOTE:
      • Be sure to perform this step with all accessories off.
      • Make sure that the shift lever is in N.
    5. Enter the following menus: Powertrain / Engine / Data List / Gas Throttle / Throttle Sensor Position. Fully depress the accelerator pedal and check that the value is 60% or more.
    6. Perform a road test and confirm that there are no abnormalities.
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