Last Modified: 07-31-2024 6.11:8.1.0 Doc ID: RM10000000272K5
Model Year Start: 2023 Model: Corolla Prod Date Range: [09/2022 - 11/2022]
Title: 2ZR-FAE (FUEL): FUEL INJECTOR: INSTALLATION; 2023 MY Corolla [09/2022 - 11/2022]

INSTALLATION

PROCEDURE

1. INSTALL FUEL INJECTOR ASSEMBLY

HINT:

Perform "Inspection After Repair" after replacing the fuel injector assembly.

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

(a) Apply a light coat of gasoline or spindle oil to 4 new O-rings, and install one to each fuel injector assembly.

NOTICE:

Check that there is no damage or foreign matter on the groove of the fuel injector assembly when installing the O-ring to each fuel injector assembly.

(b) Apply a light coat of gasoline or spindle oil where the fuel delivery pipe sub-assembly contacts each O-ring.

(c) While turning the fuel injector assembly left and right, install it to the fuel delivery pipe sub-assembly.

Push

Turn

NOTICE:

  • Check that the fuel injector assembly installation holes of the fuel delivery pipe sub-assembly are not damaged and are free of foreign matter.
  • Do not damage the fuel injector assembly or O-ring.
  • Make sure that the O-ring is not twisted or moved out of place when installing the fuel injector assembly.
  • After installing each fuel injector assembly, check that it turns smoothly. If not, replace the O-ring with a new one.

HINT:

Use the same procedure to install the other fuel injector assemblies.

2. INSTALL INJECTOR VIBRATION INSULATOR

(a) Install 4 new injector vibration insulators to the cylinder head sub-assembly.

3. INSTALL NO. 1 DELIVERY PIPE SPACER

(a) Install the 2 No. 1 delivery pipe spacers to the cylinder head sub-assembly.

NOTICE:

Install the No. 1 delivery pipe spacers in the correct direction.

*a

Fuel Delivery Pipe Sub-assembly Side

*b

Cylinder Head Sub-assembly Side

4. INSTALL FUEL DELIVERY PIPE SUB-ASSEMBLY

(a) Install the fuel delivery pipe sub-assembly with the 4 fuel injector assemblies with the 2 bolts.

Torque:

21 N·m {214 kgf·cm, 15 ft·lbf}

NOTICE:

  • Be careful not to drop the fuel injector assemblies when installing the fuel delivery pipe sub-assembly.
  • Check that the fuel injector assemblies turn smoothly after installing the fuel delivery pipe sub-assembly.

(b) Install the clamp of the fuel delivery pipe sub-assembly to the cylinder head sub-assembly with the bolt.

Torque:

21 N·m {214 kgf·cm, 15 ft·lbf}

5. CONNECT FUEL TUBE SUB-ASSEMBLY

(a) Connect the fuel tube sub-assembly to the fuel delivery pipe sub-assembly.

Click here 2023 MY Corolla [09/2022 - 11/2022]; 2ZR-FAE (FUEL): FUEL SYSTEM: PRECAUTION

(b) Engage the clamp and connect the fuel tube sub-assembly.

(c) Install a new No. 2 fuel pipe clamp.

6. CONNECT ENGINE WIRE

(a) Install the vacuum sensor bracket to the intake manifold with the engine cover joint.

Torque:

10 N·m {102 kgf·cm, 7 ft·lbf}

(b) Engage the 3 wire harness clamps.

(c) Connect the 4 fuel injector assembly connectors.

7. INSTALL E.F.I. VACUUM SENSOR ASSEMBLY (MANIFOLD ABSOLUTE PRESSURE SENSOR)

Click here 2020 - 2023 MY Corolla [01/2019 - 11/2022]; 2ZR-FAE (EMISSION CONTROL): VACUUM SENSOR: INSTALLATION+

8. INSTALL BATTERY

Click here 2023 MY Corolla [09/2022 - 11/2022]; MAINTENANCE: 2ZR-FAE BATTERY: INSTALLATION

9. INSPECT FOR FUEL LEAK

Click here 2023 MY Corolla [09/2022 - 11/2022]; 2ZR-FAE (FUEL): FUEL SYSTEM: ON-VEHICLE INSPECTION+

10. PERFORM INITIALIZATION

(a) Perform "Inspection After Repair" after replacing a fuel injector assembly.

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

11. INITIALIZATION AFTER RECONNECTING BATTERY TERMINAL

HINT:

When disconnecting and reconnecting the battery, there is an automatic learning function that completes learning when the respective system is used.

Click here 2023 MY Corolla Corolla Hatchback Corolla HV GR Corolla [09/2022 - 11/2022]; SETUP: WHEN DISCONNECTING OR RECONNECTING BATTERY TERMINAL: AUTOMATIC LEARNING CHART