Toyota Avalon (XX50) 2019-2022 Service & Repair Manual: Installation

INSTALLATION

PROCEDURE

1. INSTALL FUEL PIPE PLUG SUB-ASSEMBLY

(a) Install a new O-ring, No. 1 fuel injector back-up ring, No. 2 fuel injector back-up ring and No. 3 fuel injector back-up ring to the fuel pipe plug sub-assembly as shown in the illustration.

NOTICE:

• Check that there is no foreign matter or damage on the O-ring groove of the fuel pipe plug sub-assembly.
• Check that the No. 1 fuel injector back-up ring and No. 3 fuel injector back-up ring are installed in the correct orientation.
• Make sure that the No. 1 fuel injector back-up ring, No. 2 fuel injector back-up ring, No. 3 fuel injector back-up ring and O-ring are installed in the correct order.
• Check that the opening of the No. 1 fuel injector back-up ring is not overlapped or stretched as shown in the illustration.
• After installing the O-ring, check that it is not contaminated with foreign matter and is not damaged.

(b) Install the dust cap sub-assembly to the fuel pipe plug sub-assembly.

(c) Install a new gasket to the fuel pipe plug sub-assembly as shown in the illustration.

(d) Secure the fuel delivery pipe with sensor assembly LH in a vise between aluminum plates.

NOTICE:

Do not overtighten the vise.

(e) Using a 5 mm hexagon socket wrench, install the fuel pipe plug sub-assembly to the fuel delivery pipe with sensor assembly LH with the 2 bolts.

Torque:

10 N·m {102 kgf·cm, 7 ft·lbf}

(f) Remove the fuel delivery pipe with sensor assembly LH from the vise.

2. INSTALL FUEL PRESSURE SENSOR (FUEL DELIVERY PIPE WITH SENSOR ASSEMBLY LH)

HINT:

Perform "Inspection After Repair" after replacing the fuel pressure sensor (fuel delivery pipe with sensor assembly LH).

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NOTICE:

• Do not remove the fuel pressure sensor from the fuel delivery pipe with sensor assembly LH.
• If the fuel pressure sensor is removed, replace the fuel pressure sensor (fuel delivery pipe with sensor assembly LH) with a new one.

3. PERFORM INITIALIZATION

(a) Perform "Inspection After Repair" after replacing the fuel pressure sensor (fuel delivery pipe with sensor assembly LH).

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