EXHAUST MANIFOLD REMOVAL

CAUTION / NOTICE / HINT

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

  • Gas leak from exhaust system is repaired

 Inspection After Repair

  • Poor idle, etc.

  • Engine start function, etc.

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CAUTION:


  • B006XAT

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

  • B00719S

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

PROCEDURE


  1. REMOVE FRONT WHEEL OPENING EXTENSION PAD RH

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  2. REMOVE FRONT WHEEL OPENING EXTENSION PAD LH

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  3. REMOVE NO. 1 ENGINE UNDER COVER

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  4. REMOVE FRONT FLOOR COVER LH

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  5. REMOVE FRONT FLOOR COVER RH

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  6. REMOVE FRONT CENTER FLOOR BRACE

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  7. REMOVE CENTER FLOOR CROSSMEMBER BRACE

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  8. REMOVE FRONT EXHAUST PIPE ASSEMBLY (TWC: Rear Catalyst)

    CAUTION:

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


    1. B0070E8

      Disengage the wire harness clamp.

    2. Disconnect the air fuel ratio sensor (for sensor 2) connector.

    3. B0070MK

      Remove the 2 bolts, 2 nuts and disconnect the front exhaust pipe assembly (TWC: Rear Catalyst) from the exhaust manifold (TWC: Front Catalyst) and center exhaust pipe assembly.

    4. Remove the front exhaust pipe assembly (TWC: Rear Catalyst) from the 2 exhaust pipe supports.

    5. Remove the 2 gaskets from the front exhaust pipe assembly (TWC: Rear Catalyst).

  9. REMOVE FRONT LOWER NO. 1 FLOOR HEAT INSULATOR

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  10. REMOVE NO. 2 ENGINE UNDER COVER ASSEMBLY

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  11. REMOVE COWL TOP VENTILATOR LOUVER SUB-ASSEMBLY

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  12. REMOVE FRONT CENTER UPPER SUSPENSION BRACE SUB-ASSEMBLY

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  13. REMOVE AIR FUEL RATIO SENSOR (for Sensor 1)

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  14. REMOVE WIRE HARNESS CLAMP BRACKET


    1. B006XH2

      Remove the bolt and wire harness clamp bracket.

  15. SEPARATE NO. 1 EXHAUST MANIFOLD HEAT INSULATOR

    CAUTION:

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


    1. B006YXY

      Remove the 5 bolts and separate the No. 1 exhaust manifold heat insulator from the exhaust manifold (TWC: Front Catalyst).

  16. SEPARATE NO. 1 UPPER FRONT FLOOR HEAT INSULATOR

    CAUTION:

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


    1. B0070E9

      Remove the 2 nuts and separate the No. 1 upper front floor heat insulator from the vehicle body.

  17. REMOVE MANIFOLD STAY

    CAUTION:

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


    1. B006ZPL

      Remove the bolt, nut and manifold stay from the exhaust manifold (TWC: Front Catalyst) and cylinder block sub-assembly.

  18. REMOVE EXHAUST MANIFOLD (TWC: Front Catalyst)

    CAUTION:

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


    1. B006Z5I

      Using a 12 mm deep socket wrench, remove the 7 nuts and separate the exhaust manifold (TWC: Front Catalyst) from the cylinder head sub-assembly.

    2. Remove the No. 1 exhaust manifold heat insulator, No. 1 upper front floor heat insulator and exhaust manifold (TWC: Front Catalyst).

    3. B006ZD9

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

  19. REMOVE NO. 2 EXHAUST MANIFOLD HEAT INSULATOR


    1. B006YMD

      Remove the 6 bolts and No. 2 exhaust manifold heat insulator from the exhaust manifold (TWC: Front Catalyst).