Lexus ES: 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 direct fuel injector assembly and its grooves. NOTICE:
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| (b) Apply engine oil to the direct fuel injector assembly contact surface of SST (guide), then attach SST (guide) to the direct fuel injector assembly with the chamfer facing the tip of the direct fuel injector assembly as shown in the illustration. SST: 09260-39021 09261-03020 |
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| (c) Install a new fuel injector seal to SST (holder). SST: 09260-39021 09261-03011 NOTICE: Be careful not to install the fuel injector seal to SST (holder) at an angle. Doing so will stretch the fuel injector seal. |
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| (d) Install SST (holder) with the fuel injector seal to the tip of the direct fuel injector assembly. Slide the fuel injector seal downward into the direct fuel injector assembly groove with your fingers as shown in the illustration. SST: 09260-39021 09261-03011 09261-03020 HINT: Check that the fuel injector seal is seated in the direct fuel injector assembly groove as shown in the illustration. |
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| (e) Slowly slide SST (guide) toward the tip of the direct fuel injector assembly. When the direct fuel injector assembly contact surface of SST (guide) aligns with the fuel injector seal as shown in the illustration, hold the position for 5 seconds or more to fully seat the fuel injector seal into the direct fuel injector assembly groove. SST: 09260-39021 09261-03020 NOTICE: Make sure the fuel injector seal is not pinched between SST (guide) and the edge of the direct fuel injector assembly groove. Replace the fuel injector seal if it becomes damaged. HINT:
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| (f) After installing the fuel injector seals, check that they are not scratched, deformed or protruding from the direct fuel injector assembly groove. NOTICE: If a fuel injector seal is scratched, deformed or protruding from the groove, replace it with a new one. HINT: Use the same procedure to install the other fuel injector seals. |
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2. INSTALL DIRECT FUEL INJECTOR ASSEMBLY
HINT:
Perform "Inspection After Repair" after replacing a direct fuel injector assembly.
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| (a) Install a new injector vibration insulator and a new C-ring to each direct fuel injector assembly. NOTICE:
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(b) Install a new O-ring and a new No. 1 fuel injector back-up ring to each direct fuel injector assembly as shown in the illustration.
| *1 | No. 1 Fuel Injector Back-up Ring | *2 | O-ring |
| *a | No. 1 Fuel Injector Back-up Ring Opening | *b | Overlapped |
| *c | Stretched | *d | Correct |
| *e | Incorrect | - | - |
NOTICE:
- Check that there is no foreign matter or damage on the O-ring groove of the direct fuel injector assembly.
- Make sure that the No. 1 fuel injector back-up ring is installed in the correct orientation.
- Make sure that the No. 1 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.
| (c) With the notch of a new No. 3 fuel injector back-up ring facing downward, install the No. 3 fuel injector back-up ring to each direct fuel injector assembly as shown in the illustration. NOTICE:
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(d) Install the nozzle holder clamp to each direct fuel injector assembly.
(e) Align the protrusion of the nozzle holder clamp with the positioning hole of the fuel delivery pipe with sensor assembly LH and fuel delivery pipe RH, and insert the direct fuel injector assembly.
| *a | Protrusion |
| *b | Positioning Hole |
.png) | No Gap |
NOTICE:
- Make sure that there is no foreign matter or damage inside the direct fuel injector assembly installation holes (fuel delivery pipe with sensor assembly LH and fuel delivery pipe RH).
- Do not allow gasoline to get on the O-rings or inside the installation holes.
- If it is difficult to insert the direct fuel injector assembly, apply new engine oil to the chamfer of the direct fuel injector assembly installation hole of the fuel delivery pipe with sensor assembly LH and fuel delivery pipe RH. Be careful not to allow the direct fuel injector assembly to fall out of the fuel delivery pipe with sensor assembly LH or fuel delivery pipe RH.
- Do not tilt the direct fuel injector assembly when inserting it into the fuel delivery pipe with sensor assembly LH and fuel delivery pipe RH.
- Check that there is no gap between the fuel delivery pipe with sensor assembly LH, fuel delivery pipe RH and the nozzle holder clamp.
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Make sure the 3 direct fuel injector assemblies of each bank all have the same flow classification number and that the flow classification number is "1, 2, 3" or "6, 7, 8" (it is acceptable for each bank to have a different flow classification number).*a
QR Code
*b
Flow Classification Number
3. INSTALL FUEL DELIVERY PIPE RH
(a) Connect the 3 direct fuel injector assembly connectors.
(b) Apply lubricant to the direct fuel injector assembly installation holes of the cylinder head sub-assembly.
| (c) Temporarily install the fuel delivery pipe RH to the cylinder head sub-assembly so that the stud bolts protrude enough to install the nuts. NOTICE:
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(d) Install the fuel delivery pipe RH by uniformly tightening the 2 bolts and 2 nuts in the order shown in the illustration.
| | Bolt |
.png) | Nut |
Torque:
26 N·m {265 kgf·cm, 19 ft·lbf}
(e) Engage the clamp to connect the No. 6 engine wire to the fuel delivery pipe RH.
(f) Install the bolt.
Torque:
10 N·m {102 kgf·cm, 7 ft·lbf}
4. INSTALL FUEL DELIVERY PIPE WITH SENSOR ASSEMBLY LH
(a) Connect the 3 direct fuel injector assembly connectors.
(b) Apply lubricant to the direct fuel injector assembly installation holes of the cylinder head LH.
| (c) Temporarily install the fuel delivery pipe with sensor assembly LH to the cylinder head LH so that the stud bolts protrude enough to install the nuts. NOTICE:
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(d) Install the fuel delivery pipe with sensor assembly LH by uniformly tightening the 2 bolts and 2 nuts in the order shown in the illustration.
| | Bolt |
| | Nut |
Torque:
26 N·m {265 kgf·cm, 19 ft·lbf}
(e) Engage the clamp to connect the No. 7 engine wire to the fuel delivery pipe with sensor assembly LH.
(f) Install the bolt.
Torque:
10 N·m {102 kgf·cm, 7 ft·lbf}
(g) Connect the fuel pressure sensor connector.
5. INSTALL WIRE HARNESS CLAMP BRACKET
(a) Engage the 2 clamps to install the wire harness clamp bracket.
(b) Connect the No. 6 engine wire connector and No. 7 engine wire connector.
6. INSTALL NO. 2 FUEL PIPE SUB-ASSEMBLY
(a) Temporarily install the No. 2 fuel pipe sub-assembly to the fuel delivery pipe with sensor assembly LH and fuel delivery pipe RH and tighten the 2 union nuts by hand.
| (b) Using a 17 mm union nut wrench, tighten the 2 union nuts of the No. 2 fuel pipe sub-assembly. Torque: Specified tightening torque : 35 N·m {357 kgf·cm, 26 ft·lbf} NOTICE:
HINT:
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7. INSTALL FUEL PUMP ASSEMBLY (for High Pressure)
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8. PERFORM INITIALIZATION
(a) Perform "Inspection After Repair" after replacing a direct fuel injector assembly.
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READ NEXT:
Components
COMPONENTS ILLUSTRATION *1 FUEL DELIVERY PIPE WITH SENSOR ASSEMBLY *2 PORT FUEL INJECTOR ASSEMBLY *3 FUEL TUBE SUB-ASSEMBLY *4 INJECTOR VIBRATION INSULATOR *5 NO. 1 DELIVERY
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 port
SEE MORE:
Speaker Circuit
DESCRIPTION If there is a short in a speaker circuit, the stereo component amplifier assembly detects it and stops output to the speakers. Thus sound cannot be heard from the speakers even if there is no malfunction in the stereo component amplifier assembly, DCM (telematics transceiver)* or speaker
Fail-safe Chart
FAIL-SAFE CHART FAIL-SAFE CHART (a) When the skid control ECU (brake actuator assembly) detects a solenoid valve malfunction or abnormal signal from a sensor, the brake actuator assembly cuts power and sends a signal indicating a malfunction of the electronically controlled brake system to the ECM.
