Last Modified: 07-31-2024 6.11:8.1.0 Doc ID: RM100000001GMR6
Model Year Start: 2020 Model: Corolla Prod Date Range: [01/2019 - 11/2022]
Title: 2ZR-FAE (INTAKE / EXHAUST): EXHAUST MANIFOLD: 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 exhaust manifold 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.

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 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.

PROCEDURE

1. REMOVE AIR FUEL RATIO SENSOR

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

2. REMOVE 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.

(a) Disengage the 2 clamps.

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

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

3. REMOVE DRIVE SHAFT HEAT INSULATOR SUB-ASSEMBLY

CAUTION:

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

(a) Remove the 2 nuts and 2 drive shaft heat insulator sub-assemblies from the manifold stay.

4. REMOVE MANIFOLD STAY

CAUTION:

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

(a) Remove the 3 bolts and manifold stay from the exhaust manifold and cylinder block sub-assembly.

5. REMOVE EXHAUST MANIFOLD

CAUTION:

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

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

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

6. REMOVE NO. 2 EXHAUST MANIFOLD HEAT INSULATOR

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