Last Modified: 08-21-2023 6.11:8.1.0 Doc ID: RM100000001PVBB
Model Year Start: 2021 Model: Avalon Prod Date Range: [08/2020 -           ]
Title: A25A-FKS (FUEL): FUEL INJECTOR (for Port Injection): INSTALLATION; 2021 - 2022 MY Avalon [08/2020 -        ]

INSTALLATION

CAUTION / NOTICE / HINT

NOTICE:

This procedure includes the installation of small-head bolts. Refer to Small-Head Bolts of Basic Repair Hint to identify the small-head bolts.

Click here 2019 - 2022 MY Avalon Avalon HV [04/2018 -        ]; INTRODUCTION: REPAIR INSTRUCTION: PRECAUTION

PROCEDURE

1. INSTALL PORT FUEL INJECTOR ASSEMBLY

HINT:

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

Click here 2021 - 2022 MY Avalon [08/2020 -        ]; A25A-FKS (ENGINE CONTROL): SFI SYSTEM: INITIALIZATION

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

NOTICE:

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

(b) Install the 4 port fuel injector assemblies to the fuel delivery pipe sub-assembly.

NOTICE:

  • Make sure that the port fuel injector assembly is located within the stopper as shown in the illustration.
  • Check that the port fuel injector assembly installation holes of the fuel delivery pipe sub-assembly are not damaged and are free of foreign matter.
  • Make sure that the O-ring is not damaged, twisted or moved out of place when installing the port fuel injector assembly.

*a

Stopper

*b

Claw

2. INSTALL NO. 5 ENGINE WIRE

(a) Engage the 2 clamps to install the No. 5 engine wire to the fuel delivery pipe sub-assembly.

(b) Connect the 4 port fuel injector assembly connectors and No. 2 fuel pressure sensor connector.

3. INSTALL INJECTOR VIBRATION INSULATOR

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

4. 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

5. INSTALL FUEL DELIVERY PIPE SUB-ASSEMBLY

(a) Place the fuel delivery pipe sub-assembly with the 4 port fuel injector assemblies onto the cylinder head sub-assembly.

NOTICE:

Be careful not to drop the port fuel injector assemblies when installing the fuel delivery pipe sub-assembly.

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

Torque:

28.5 N·m {291 kgf·cm, 21 ft·lbf}

6. CONNECT FUEL TUBE SUB-ASSEMBLY

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

Click here 2021 - 2022 MY Avalon [08/2020 -        ]; A25A-FKS (FUEL): FUEL SYSTEM: PRECAUTION

(b) Install the fuel pipe clamp to the fuel tube connector.

7. INSTALL FUEL(ENGINE ROOM SIDE) PUMP ASSEMBLY

Click here 2021 - 2022 MY Avalon [08/2020 -        ]; A25A-FKS (FUEL): FUEL PUMP (for High Pressure): INSTALLATION

8. PERFORM INITIALIZATION

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

Click here 2021 - 2022 MY Avalon [08/2020 -        ]; A25A-FKS (ENGINE CONTROL): SFI SYSTEM: INITIALIZATION