Installation [09/2014 - 11/2017]: Procedure

WARNING: This page is about a different car, the 2017 Lexus RC 350, 2017 Lexus RC 300, 2016 Lexus RC 350, 2016 Lexus RC 300, and 2015 Lexus RC 350. However, it is still accessible from the selected car via links, so may be relevant.

INSTALL FUEL INJECTOR SEAL

Apply engine conditioner to the area shown in the illustration. Using a piece of cloth, clean carbon deposits from the fuel injector assembly and its grooves.

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

*a	Area to be Cleaned

NOTE:

Do not clean the tip of the fuel injector assembly.
Do not use a wire brush to clean the fuel injector assembly.
If a fuel injector assembly is dropped or the tip of a fuel injector assembly is struck, replace it with a new one.

Apply engine oil to the fuel injector assembly contact surface of SST (guide), then attach SST (guide) to the fuel injector assembly with the chamfer facing the tip of the fuel injector assembly as shown in the illustration.

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

*a	SST (Guide)
*b	Chamfer

SST: 09260-39015
1. 09268-03020

Install a new fuel injector seal to SST (holder).

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

*1	Fuel Injector Seal
*a	SST (Holder)
*b	Correct
*c	Incorrect

SST: 09260-39015
1. 09268-03010

NOTE:

Be careful not to install the fuel injector seal to SST (holder) at an angle. Doing so will stretch the fuel injector seal.

Install SST (holder) with the fuel injector seal to the tip of the fuel injector assembly. Slide the fuel injector seal downward into the fuel injector assembly groove (fuel injector assembly connector side) with your fingers as shown in the illustration.

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

*a	SST (Holder)
*b	SST (Guide)

SST: 09260-39015
1. 09268-03010
2. 09268-03020

HINT:

Check that the fuel injector seal is seated in the fuel injector assembly groove as shown in the illustration.

Using SST (holder), gently press downward on the fuel injector seal (fuel injector assembly connector side), then slowly slide SST (guide) toward the fuel injector assembly tip to settle the fuel injector seal into the fuel injector assembly groove.

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

*a	SST (Holder)	*b	SST (Guide)
*c	Press gently	*d	Correct
*e	Incorrect	-	-

SST: 09260-39015
1. 09268-03010
2. 09268-03020

NOTE:

Be sure that the fuel injector seal is not pinched between SST (guide) and the edge of the fuel injector assembly groove. Replace the fuel injector seal if it becomes damaged.

HINT:

When using SST (guide) to settle the fuel injector seal into the groove, SST (guide) only needs to be slid upward to the position (A) in the illustration.
After using SST (guide) to settle the fuel injector seal into the groove, return SST (guide) to the position (B) in the illustration.

Install a new fuel injector seal to SST (holder).

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

*1	Fuel Injector Seal
*a	SST (Holder)
*b	Correct
*c	Incorrect

SST: 09260-39015
1. 09268-03010

NOTE:

Be careful not to install the fuel injector seal to SST (holder) at an angle. Doing so will stretch the fuel injector seal.

Install SST (holder) with the fuel injector seal to the tip of the fuel injector assembly. Slide the fuel injector seal downward into the fuel injector assembly groove (fuel injector assembly tip side) with your fingers as shown in the illustration.

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

*a	SST (Holder)
*b	SST (Guide)
*c	Welded Groove

SST: 09260-39015
1. 09268-03010
2. 09268-03020

NOTE:

Make sure that the fuel injector seal does not slip into the welded groove of the fuel injector assembly shown in the illustration. If it does, replace it with a new one.

HINT:

Check that the fuel injector seal is seated in the fuel injector assembly groove as shown in the illustration.

Slowly slide SST (guide) toward the tip of the fuel injector assembly. When the fuel injector assembly contact surface of SST (guide) aligns with the fuel injector seal (fuel injector assembly connector side) as shown in the illustration, hold the position for 5 seconds or more to fully seat the fuel injector seal into the fuel injector assembly groove.

SST: 09260-39015
1. 09268-03020

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

*a	SST (Guide)

NOTE:

Be sure that the fuel injector seal is not pinched between SST (guide) and the edge of the fuel injector assembly groove. Replace the fuel injector seal if it becomes damaged.

HINT:

Set SST (guide) so that its bottom surface is flush with the fuel injector seal.
If it is difficult to slide SST (guide) upward, slowly wiggle it from side to side while sliding it up the fuel injector assembly little by little.

Using SST (holder), gently press downward on the fuel injector seal (fuel injector assembly tip side), then slowly slide SST (guide) toward the fuel injector assembly tip to settle the fuel injector seal into the fuel injector assembly groove.

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

*a	SST (Holder)	*b	SST (Guide)
*c	Press gently	*d	Correct
*e	Incorrect	-	-

SST: 09260-39015
1. 09268-03010
2. 09268-03020

NOTE:

Be sure that the fuel injector seal is not pinched between SST (guide) and the edge of the fuel injector assembly groove. Replace the fuel injector seal if it becomes damaged.

Slowly slide SST (guide) toward the tip of the fuel injector assembly. When the fuel injector assembly contact surface of SST (guide) aligns with the fuel injector seal (fuel injector assembly tip side) as shown in the illustration, hold the position for 5 seconds or more to fully seat the fuel injector seal into the fuel injector assembly groove.

SST: 09260-39015
1. 09268-03020

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

*a	SST (Guide)

NOTE:

Be sure that the fuel injector seal is not pinched between SST (guide) and the edge of the fuel injector assembly groove. Replace the fuel injector seal if it becomes damaged.

HINT:

Set SST (guide) so that its bottom surface is flush with the fuel injector seal.
If it is difficult to slide SST (guide) upward, slowly wiggle it from side to side while sliding it up the fuel injector assembly little by little.

After installing the fuel injector seals, check that they are not scratched, deformed or protruding from the fuel injector assembly grooves.

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

*a	Normal
*b	Protruding
*c	Deformed
*d	Correct
*e	Incorrect

NOTE:

If a fuel injector seal is scratched, deformed or protruding from the groove, replace it with a new one.

INSTALL FUEL INJECTOR ASSEMBLY

HINT:

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

Refer to INITIALIZATION [09/2014 - 11/2017]

Install a new O-ring, new No. 1 back-up ring, new No. 2 back-up ring, new No. 3 back-up ring and new E-ring to each fuel injector assembly as shown in the illustration.

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

*1	No. 1 Back-up Ring	*2	No. 2 Back-up Ring
*3	No. 3 Back-up Ring	*4	O-ring
*5	E-ring	-	-
*a	Alignment Opening	*b	Overlapped
*c	Stretched	*d	Correct
*e	Incorrect	-	-

NOTE:

Check that there is no foreign matter or damage on the O-ring groove of the fuel injector assembly.
Check that the No. 1 back-up ring and No. 2 back-up ring are installed in the correct orientation.
Make sure that the No. 1 back-up ring, No. 2 back-up ring, No. 3 back-up ring and O-ring are installed in the correct order.
Check that the alignment openings of the No. 1 back-up ring, No. 2 back-up ring and No. 3 back-up ring are 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.
Check that the end of the fuel injector assembly (fuel delivery pipe assembly and No. 2 fuel delivery pipe assembly side) is not contaminated with foreign matter and are not damaged.

Install the nozzle holder clamp to each fuel injector assembly.

Apply gasoline to the O-ring. Install each fuel injector assembly by aligning the protrusion of the nozzle holder clamp with the notch of the fuel delivery pipe sub-assembly and No. 2 fuel delivery pipe sub-assembly.

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

*a	Protrusion
	No Gap

NOTE:

Make sure that there is no gap between the fuel delivery pipe sub-assembly, No. 2 fuel delivery pipe sub-assembly and nozzle holder clamp.
Check that there is no foreign matter or damage on the fuel injector assembly installation holes of the fuel delivery pipe sub-assembly and No. 2 fuel delivery pipe sub-assembly.
Insert each fuel injector assembly straight into the fuel delivery pipe sub-assembly and No. 2 fuel delivery pipe sub-assembly without tilting it.

The fuel injector assembly connectors can be differentiated by the color of the insulators, which are either black, brown, green or yellow. Install the fuel injector assemblies so that the insulators are the same color for a given bank.

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Insulator

INSTALL FUEL DELIVERY PIPE SUB-ASSEMBLY

Install 3 new injector vibration insulators to the cylinder head sub-assembly.
Connect the 3 fuel injector assembly connectors.
Apply lubricant to the fuel injector assembly installation holes of the cylinder head sub-assembly.

Temporarily install the fuel delivery pipe sub-assembly so that the stud bolts protrude enough to install the nuts.

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

*a	Protruding enough to install nut

NOTE:

If a fuel injector assembly is dropped or the tip of a fuel injector assembly is struck, replace it with a new one.
Check that there is no foreign matter or damage on the fuel injector assembly installation holes of the cylinder head sub-assembly.
When installing the fuel delivery pipe sub-assembly, push it in evenly without tilting it.

Install the fuel delivery pipe sub-assembly by uniformly tightening the 2 bolts and 2 nuts in the order shown in the illustration.

Fig 1: Fuel Delivery Pipe Sub-Assembly Bolts And Nuts Tightening Sequence

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

	Nut
	Bolt
	Front Side

Type A

Torque: 26 N.m (265 kgf/cm, 19 ft.lbf)

Typa B

Torque: 19 N.m (194 kgf/cm, 14 ft.lbf)

HINT:

Type A or B can be distinguished by confirming the mark on the bolt.
The tightening torque of the nut is same as for the bolt.

*A	Type A
*B	Type B

Engage the 2 clamps to connect the No. 6 engine wire.

Engage the clamp to connect the wire harness.

*a	Wire Harness

NOTE:

Make sure the wire harness of the fuel pressure sensor passes under the area (A) as shown in the illustration.
Do not pull the wire harness of the fuel pressure sensor excessively.

Connect the fuel pressure sensor connector.

INSTALL NO. 2 FUEL DELIVERY PIPE SUB-ASSEMBLY

Install 3 new injector vibration insulators to the cylinder head sub-assembly.
Connect the 3 fuel injector assembly connectors.
Apply lubricant to the fuel injector assembly installation holes of the cylinder head sub-assembly.

Temporarily install the No. 2 fuel delivery pipe sub-assembly so that the stud bolts protrude enough to install the nuts.

*a	Protruding enough to install nut

NOTE:

If a fuel injector assembly is dropped or the tip of a fuel injector assembly is struck, replace it with a new one.
Check that there is no foreign matter or damage on the fuel injector assembly installation holes of the cylinder head sub-assembly.
When installing the No. 2 fuel delivery pipe sub-assembly, push it in evenly without tilting it.

Install the No. 2 fuel delivery pipe sub-assembly by uniformly tightening the 2 bolts and 2 nuts in the order shown in the illustration.

Fig 2: No. 2 Fuel Delivery Pipe Sub-Assembly Bolts And Nuts Tightening Sequence

	Nut
	Bolt
	Front Side

Type A

Torque: 26 N.m (265 kgf/cm, 19 ft.lbf)

Typa B

Torque: 19 N.m (194 kgf/cm, 14 ft.lbf)

HINT:

Type A or B can be distinguished by confirming the mark on the bolt.
The tightening torque of the nut is same as for the bolt.

*A	Type A
*B	Type B

Engage the 3 clamps to connect the No. 7 engine wire.

INSTALL NO. 3 FUEL PIPE SUB-ASSEMBLY

Install a new O-ring, new No. 1 back-up ring, new No. 2 back-up ring, new No. 3 back-up ring and new E-ring to each end of the No. 3 fuel pipe sub-assembly as shown in the illustration.

*1	No. 1 Back-up Ring	*2	No. 2 Back-up Ring
*3	No. 3 Back-up Ring	*4	O-ring
*5	E-ring	-	-
*a	Alignment Opening	*b	Overlapped
*c	Stretched	*d	Correct
*e	Incorrect	-	-

NOTE:

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

Apply engine oil to the installation hole of the fuel delivery pipe sub-assembly and No. 2 fuel delivery pipe sub-assembly.

*a	No Gap
	Front Side

Press the No. 3 fuel pipe sub-assembly by hand until there is no gap between the No. 3 fuel pipe sub-assembly and either fuel delivery pipe sub-assembly or No. 2 fuel delivery pipe sub-assembly, then install the No. 3 fuel pipe sub-assembly with the 4 bolts.
Torque: 10 N.m (102 kgf/cm, 7 ft.lbf)

NOTE:
Do not install the No. 3 fuel pipe sub-assembly at an angle.

INSTALL FUEL PUMP ASSEMBLY
Refer to INSTALLATION [09/2014 - 11/2017]
PERFORM INITIALIZATION
1. Perform "Inspection After Repair" after replacing a fuel injector assembly.
  Refer to INITIALIZATION [09/2014 - 11/2017]