Last Modified: 07-31-2024 6.11:8.1.0 Doc ID: RM100000001GMR9
Model Year Start: 2020 Model: Corolla Prod Date Range: [01/2019 - 11/2022]
Title: 2ZR-FAE (INTAKE / EXHAUST): EXHAUST PIPE: REMOVAL; 2020 - 2023 MY Corolla [01/2019 - 11/2022]

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 front exhaust pipe assembly (TWC: Front and Rear Catalyst) and tail exhaust pipe assembly 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 heated oxygen sensor
  • Gas leak from exhaust system is repaired

Inspection after repair
  • Poor idle, etc.
  • Engine start function, etc.

2020 - 2023 MY Corolla [01/2019 - 11/2022]; 2ZR-FAE (ENGINE CONTROL): SFI SYSTEM: INITIALIZATION

CAUTION:

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

PROCEDURE

1. REMOVE FRONT FLOOR COVER LH (w/ Cover)

Bolt

Clip

(a) Remove the 2 bolts and 3 clips and disengage the 6 clamps to remove the front floor cover LH from the vehicle body.

2. REMOVE FRONT FLOOR COVER RH (w/ Cover)

HINT:

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

3. REMOVE FRONT FLOOR CENTER BRACE

(a) Remove the 8 bolts and 2 front floor center braces from the vehicle body.

4. REMOVE HEATED OXYGEN SENSOR

Click here 2020 - 2023 MY Corolla [01/2019 - 11/2022]; 2ZR-FAE (ENGINE CONTROL): HEATED OXYGEN SENSOR: REMOVAL+

5. REMOVE TAIL EXHAUST PIPE ASSEMBLY

CAUTION:

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

(a) Remove the 2 bolts and 2 compression springs and disconnect the tail exhaust pipe assembly from the front exhaust pipe assembly (TWC: Front and Rear Catalyst).

(b) Remove the tail exhaust pipe assembly from the 4 exhaust pipe supports.

(c) Remove the exhaust pipe gasket from the front exhaust pipe assembly (TWC: Front and Rear Catalyst).

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

CAUTION:

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

(a) Remove the 2 bolts and 2 compression springs and disconnect the front exhaust pipe assembly (TWC: Front and Rear Catalyst) from the exhaust manifold.

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

(c) Remove the exhaust pipe gasket from the exhaust manifold.