Lexus RX (RX 350L, RX450h) 2016-2025 Repair Manual: Removal

Lexus RX (RX 350L, RX450h) 2016-2025 Repair Manual / Engine & Hybrid System / 2gr-fks (fuel) / Fuel Injector (for Direct Injection) / Removal

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 fuel injector 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
*1: When performing learning using the Techstream. Click here
Battery terminal is disconnected/reconnected	Memorize steering angle neutral point	Lane Control System
		Pre-collision system
		Intelligent clearance sonar system*1
		Lighting system (w/ Automatic Headlight Beam Level Control System)
		Parking assist monitor system
		Panoramic view monitor system
	Initialize back door lock	Power door lock control system
	Reset back door close position	Power Back Door System (w/ Outside Door Control Switch)
Replacement of fuel injector assembly (for Port Injection) Replacement of fuel injector assembly (for Direct Injection) Replacement of throttle body with motor assembly Cleaning the deposits from the throttle body with motor assembly	Inspection After Repair	Poor idle, etc. Engine start function, etc.

PROCEDURE

1. REMOVE FUEL PUMP ASSEMBLY (for High Pressure)

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2. REMOVE NO. 2 FUEL PIPE SUB-ASSEMBLY

CAUTION:

To prevent serious injury due to fuel spray from the high-pressure fuel lines, always discharge fuel system pressure before removing any fuel system components.

(a) Using a 17 mm union nut wrench, loosen the 2 union nuts of the No. 2 fuel pipe sub-assembly.

(b) Remove the No. 2 fuel pipe sub-assembly from the fuel delivery pipe with sensor assembly LH and fuel delivery pipe RH.

3. REMOVE WIRE HARNESS CLAMP BRACKET

(a) Disconnect the No. 6 engine wire connector and No. 7 engine wire connector.

(b) Disengage the 2 clamps to remove the wire harness clamp bracket.

4. REMOVE FUEL DELIVERY PIPE WITH SENSOR ASSEMBLY LH

(a) Disconnect the fuel pressure sensor connector.

(b) Remove the bolt.

(d) Remove the 2 bolts, 2 nuts and fuel delivery pipe with sensor assembly LH with the fuel injector assemblies.

	Bolt
	Nut

NOTICE:

Make sure not to touch or strike the tips of the fuel injector assemblies.
Pull and remove the fuel delivery pipe with sensor assembly LH in a straight line without tilting it.

(e) Disconnect the 3 fuel injector assembly connectors.

5. REMOVE FUEL DELIVERY PIPE RH

(a) Remove the bolt.

(b) Disengage the clamp to disconnect the No. 6 engine wire from the fuel delivery pipe RH.

	Bolt
	Nut

NOTICE:

Make sure not to touch or strike the tips of the fuel injector assemblies.
Pull and remove the fuel delivery pipe RH in a straight line without tilting it.

(d) Disconnect the 3 fuel injector assembly connectors.

6. REMOVE FUEL INJECTOR ASSEMBLY

(a) Secure the fuel delivery pipe with sensor assembly LH and fuel delivery pipe RH in a vise between aluminum plates and pull out the 6 fuel injector assemblies.

NOTICE:

Pull and remove each fuel injector assembly in a straight line to avoid damaging the seal surface of the fuel delivery pipe with sensor assembly LH and fuel delivery pipe RH O-ring.
After removing the fuel injector assemblies, remove any O-rings, No. 1 fuel injector back-up rings and No. 3 fuel injector back-up rings remaining on the fuel delivery pipe with sensor assembly LH and fuel delivery pipe RH side.
Attach a tag or label with the corresponding cylinder number to each fuel injector assembly so that they can be installed to their original locations.

(b) Remove the nozzle holder clamp from each fuel injector assembly.

NOTICE:

Do not damage the area that contacts the O-ring.

(d) Remove the O-ring and No. 1 fuel injector back-up ring from each fuel injector assembly.

(e) Remove the C-ring and injector vibration insulator from each fuel injector assembly.

7. REMOVE FUEL INJECTOR SEAL

(a) Using the tip of needle nose pliers, pinch and pull the fuel injector seal at several points to stretch it.

NOTICE:

Excessively pinching the fuel injector seal may damage the groove of the fuel injector assembly.
If a fuel injector assembly is dropped or the tip of the fuel injector assembly is struck, replace it with a new one.

(b) Remove the fuel injector seal from each fuel injector assembly.

Inspection

INSPECTION PROCEDURE 1. INSPECT FUEL INJECTOR ASSEMBLY NOTICE: This inspection is for checking the fuel injector assembly for an open or short. Because the fuel injector assembly of this vehicle is a ...

Installation

INSTALLATION PROCEDURE 1. INSTALL FUEL INJECTOR SEAL (a) Apply engine conditioner to the area shown in the illustration. Using a piece of cloth, clean carbon deposits from the fuel injector assembl ...

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Lexus RX (RX 350L, RX450h) 2016-2025 Repair Manual: Removal

Inspection

Installation

Other materials:

Lexus RX (RX 350L, RX450h) 2016-{YEAR} Owners Manual

Lexus RX (RX 350L, RX450h) 2016-{YEAR} Repair Manual