Last Modified: 07-31-2024 6.11:8.1.0 Doc ID: RM100000001H4XM
Model Year Start: 2020 Model: Corolla Prod Date Range: [01/2019 - 09/2022]
Title: 2ZR-FXE (ENGINE CONTROL): THROTTLE BODY: REMOVAL; 2020 - 2022 MY Corolla Corolla HV [01/2019 - 09/2022]

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 throttle body 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 throttle body assembly
  • Cleaning the deposits from the throttle body assembly

Inspection After Repair
  • Poor idle, etc.
  • Engine start function, etc.

2020 - 2022 MY Corolla Corolla HV [01/2019 - 09/2022]; 2ZR-FXE (ENGINE CONTROL): SFI SYSTEM: INITIALIZATION

PROCEDURE

1. DRAIN ENGINE COOLANT (for Engine)

Click here 2020 MY Corolla Corolla HV [01/2019 - 04/2020]; MAINTENANCE: 2ZR-FXE COOLANT (for Engine Coolant): REPLACEMENT+ 2021 - 2022 MY Corolla Corolla HV [04/2020 - 09/2022]; MAINTENANCE: 2ZR-FXE COOLANT (for Engine Coolant): REPLACEMENT+

2. REMOVE AIR CLEANER CAP SUB-ASSEMBLY

(a) Disconnect the mass air flow meter connector.

(b) Disconnect the wire harness clamp.

(c) Disengage the 2 clamps.

*a

Clamp

*b

Guide

(d) Disengage the 2 guides and remove the air cleaner cap sub-assembly from the air cleaner case sub-assembly.

(e) Loosen the hose clamp and remove the air cleaner cap sub-assembly from the air cleaner hose assembly.

3. REMOVE AIR CLEANER HOSE ASSEMBLY

(a) Slide the clip and disconnect the No. 2 ventilation hose from the cylinder head cover sub-assembly.

(b) Loosen the hose clamp and remove the air cleaner hose assembly from the throttle body assembly.

4. REMOVE THROTTLE BODY ASSEMBLY

(a) Disconnect the throttle body assembly connector.

*A

w/ Stud Bolt

*B

w/o Stud Bolt

*1

Water By-pass Hose

*2

No. 2 Water By-pass Hose

(b) Slide the 2 clips and disconnect the water by-pass hose and No. 2 water by-pass hose from the throttle body assembly.

(c) w/ Stud Bolt:

(1) Remove the 2 bolts, 2 nuts and throttle body assembly from the intake manifold.

NOTICE:

If the throttle body assembly has been struck or dropped, replace it.

*A

w/ Stud Bolt

*B

w/o Stud Bolt

(d) w/o Stud Bolt:

(1) Remove the 4 bolts and throttle body assembly from the intake manifold.

NOTICE:

If the throttle body assembly has been struck or dropped, replace it.

5. REMOVE THROTTLE BODY GASKET

(a) Remove the throttle body gasket from the intake manifold.

*A

w/ Stud Bolt

*B

w/o Stud Bolt