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Caution / Notice / Hint

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The necessary procedures (adjustment, calibration, initialization or registration) that must be performed after parts are removed and installed, or replaced during exhaust manifold (TWC: Front Catalyst) removal/installation are shown below.

NECESSARY PROCEDURES AFTER PARTS REMOVED/INSTALLED/REPLACED

Replaced Part or Performed Procedure Necessary Procedure Effect/Inoperative Function when Necessary Procedure not Performed Link
  • Replacement of air fuel ratio sensor (sensor 1)
  • Gas leak from exhaust system is repaired
Perform Inspection After Repair
  • Poor idle, etc.
  • Engine start function, etc.
Refer to INITIALIZATION [11/2021 - ]
WARNING:
  • To prevent burns, do not touch the engine, exhaust manifold or other high temperature components while the engine is hot.
    GTY563663Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  • To prevent burns, do not touch the engine, exhaust pipe or other high temperature components while the engine is hot.
    GTY563662Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002


COMPONENTS (REMOVAL) 

Fig 1: Exhaust Manifold Removal Components [11/2021 - 03/2022] (1 Of 2)
GTY1079211Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Callout - Procedure Part Name Code
1 NO. 2 ENGINE UNDER COVER ASSEMBLY 51420 - - -
2 FRONT EXHAUST PIPE ASSEMBLY (TWC: Rear Catalyst) 17410 See step  2 - -
3 HOOD TO FRONT FENDER SEAL LH 53389B - - -
4 HOOD TO FRONT FENDER SEAL RH 53388D - - -
5 WINDSHIELD WIPER MOTOR AND LINK ASSEMBLY - - - -
6 COWL VENTILATOR SPLASH SHIELD 55752A - - -
7 COWL VENTILATOR PANEL SUB-ASSEMBLY 55704B - - -
Non-reusable part - -
Fig 2: Exhaust Manifold Removal Components [11/2021 - 03/2022] (2 Of 2)
GTY1080541Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Callout - Procedure Part Name Code
8 AIR FUEL RATIO SENSOR (for Sensor 1) 89467B See step  8 - -
9 WIRE HARNESS CLAMP BRACKET 82715 See step  9 - -
10 NO. 1 EXHAUST MANIFOLD HEAT INSULATOR 17167 See step  10 - -
11 NO. 1 FRONT FLOOR HEAT INSULATOR 58151 See step  11 - -
12 MANIFOLD STAY 17118 See step  12 - -
13 EXHAUST MANIFOLD (TWC: Front Catalyst) 17141 See step  13 - -
14 EXHAUST MANIFOLD TO HEAD GASKET 17173 - - -
15 NO. 2 EXHAUST MANIFOLD HEAT INSULATOR 17168 - - -
Non-reusable part - -