Lexus ES: Ignition Coil And Spark Plug
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 ignition coil assembly or spark plug 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 | Link |
|---|---|---|---|
| Inspection after repair |
| |
NOTICE:
This procedure includes the removal of small-head bolts. Refer to Small-Head Bolts of Basic Repair Hint to identify the small-head bolts.
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PROCEDURE
1. REMOVE NO. 1 ENGINE COVER SUB-ASSEMBLY
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2. REMOVE IGNITION COIL ASSEMBLY
| (a) Disconnect the 4 ignition coil assembly connectors. |
|
(b) Using an 8 mm socket wrench, remove the 4 bolts and 4 ignition coil assemblies from the cylinder head cover sub-assembly.
NOTICE:
If an ignition coil assembly has been struck or dropped, replace it.
HINT:
Arrange the removed parts in the correct order.
3. REMOVE SPARK PLUG
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Installation
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.
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PROCEDURE
1. INSTALL SPARK PLUG
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2. INSTALL IGNITION COIL ASSEMBLY
HINT:
Perform "Inspection After Repair" after replacing an ignition coil assembly.
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(a) Using an 8 mm socket wrench, install the 4 ignition coil assemblies to the cylinder head cover sub-assembly with the 4 bolts.
Torque:
7.5 N·m {76 kgf·cm, 66 in·lbf}
NOTICE:
If an ignition coil assembly has been struck or dropped, replace it.
HINT:
Install the same parts to their original positions.
(b) Connect the 4 ignition coil assembly connectors.
3. INSTALL NO. 1 ENGINE COVER SUB-ASSEMBLY
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4. PERFORM INITIALIZATION
(a) Perform "Inspection After Repair" after replacing an ignition coil assembly or spark plug.
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READ NEXT:
Parts Location
PARTS LOCATION ILLUSTRATION *1 ECM *2 NO. 1 ENGINE ROOM RELAY BLOCK AND NO. 1 JUNCTION BLOCK ASSEMBLY - INJ FUSE *3 IGNITION COIL ASSEMBLY *4 SPARK PLUG
System Diagram
SYSTEM DIAGRAM
SEE MORE:
Components
COMPONENTS ILLUSTRATION *1 NO. 2 PARKING BRAKE WIRE ASSEMBLY *2 REAR AXLE HUB AND BEARING ASSEMBLY *3 REAR AXLE SHAFT NUT *4 REAR DISC *5 REAR DISC BRAKE CALIPER ASSEMBLY *6 REAR SKID CONTROL SENSOR *7 REAR DISC BRAKE DUST COVER SUB-ASSEMBLY *8 REAR DRIVE SHAF
Fuel Pump Control Circuit
DESCRIPTION The fuel pump (for low pressure side) circuit consists of the ECM, fuel pump (for low pressure side) and fuel pump control ECU (which operates the fuel pump (for low pressure side)). Based on the engine output, the ECM determines the fuel pump speed. The speed is then converted to a duty
