Removal [12/2017 - 12/2021]: Procedure

REMOVE NO. 1 ENGINE UNDER COVER
Refer to PROCEDURE - Step 7 [10/2017 - 08/2020] , or refer to PROCEDURE - Step 7 [08/2020 - 12/2021]

REMOVE FRONT FLOOR COVER LH (w/ Cover)

Type A:

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	Bolt
	Clip

Remove the 2 bolts and clip and disengage the 5 clamps to remove the front floor cover LH from the vehicle body.

Type B:

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	Bolt
	Clip

Remove the 2 bolts and 2 clips and disengage the 5 clamps to remove the front floor cover LH from the vehicle body.

REMOVE FRONT FLOOR COVER RH (w/ Cover)
HINT:

Perform the same procedure as for the front floor cover LH.

REMOVE FRONT FLOOR CENTER BRACE

Remove the 12 bolts and 3 front floor center braces from the vehicle body.

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REMOVE FRONT EXHAUST PIPE ASSEMBLY (TWC: Front and Rear Catalyst)

WARNING:

To prevent burns, do not touch the engine, exhaust manifold or other high temperature components while the engine is hot.
To prevent burns, do not touch the engine, exhaust pipe or other high temperature components while the engine is hot.

Disconnect the heated oxygen sensor connector.

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Disengage the wire harness clamp.

Remove the 4 bolts and 4 compression springs and disconnect the front exhaust pipe assembly (TWC: Front and Rear Catalyst) from the exhaust manifold and tail exhaust pipe assembly.

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Remove the front exhaust pipe assembly (TWC: Front and Rear Catalyst) from the 2 exhaust pipe supports.
Remove the 2 exhaust pipe gaskets from the exhaust manifold and front exhaust pipe assembly (TWC: Front and Rear Catalyst).

REMOVE AIR FUEL RATIO SENSOR
Refer to REMOVAL [10/2017 - 12/2021]

REMOVE NO. 1 EXHAUST MANIFOLD HEAT INSULATOR

WARNING:

To prevent burns, do not touch the engine, exhaust manifold or other high temperature components while the engine is hot.
To prevent burns, do not touch the engine, exhaust pipe or other high temperature components while the engine is hot.

Disengage the 3 clamps.

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Remove the bolt and wire harness clamp bracket from the cylinder head sub-assembly.

Remove the 4 bolts and No. 1 exhaust manifold heat insulator from the exhaust manifold.

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REMOVE MANIFOLD STAY

WARNING:

To prevent burns, do not touch the engine, exhaust manifold or other high temperature components while the engine is hot.
To prevent burns, do not touch the engine, exhaust pipe or other high temperature components while the engine is hot.

Remove the 3 bolts and manifold stay from the exhaust manifold, drive shaft bearing case sub-assembly and cylinder block sub-assembly.

REMOVE EXHAUST MANIFOLD

WARNING:

To prevent burns, do not touch the engine, exhaust manifold or other high temperature components while the engine is hot.
To prevent burns, do not touch the engine, exhaust pipe or other high temperature components while the engine is hot.

Remove the 5 nuts and exhaust manifold from the cylinder head sub-assembly.

Remove the exhaust manifold to head gasket from the cylinder head sub-assembly.

REMOVE NO. 2 EXHAUST MANIFOLD HEAT INSULATOR

WARNING:

To prevent burns, do not touch the engine, exhaust manifold or other high temperature components while the engine is hot.
To prevent burns, do not touch the engine, exhaust pipe or other high temperature components while the engine is hot.

Remove the 4 bolts and No. 2 exhaust manifold heat insulator from the exhaust manifold.