Lexus ES manuals

Lexus ES: Removal

Lexus ES (XZ10) Service Manual / Engine & Hybrid System / A25a-fxs (engine Control) / Knock Sensor / 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 knock control sensor 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
  • Replacement of throttle body assembly
  • Cleaning the deposits from the throttle body assembly
  • Replacement of EGR valve assembly
  • Gas leak from exhaust system is repaired
  • Replacement of knock control sensor

Inspection after repair
  • Poor idle, etc.
  • Engine start function, etc.

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 INTAKE MANIFOLD

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2. REMOVE KNOCK CONTROL SENSOR

(a) Disconnect the knock control sensor connector.

(b) Remove the bolt and knock control sensor from the cylinder block sub-assembly.

NOTICE:

If the knock control sensor has been struck or dropped, replace it.

READ NEXT:

 Inspection

INSPECTION PROCEDURE 1. INSPECT KNOCK CONTROL SENSOR (a) Measure the resistance according to the value(s) in the table below. Standard Resistance: Tester Connection Condition Specified Cond

 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. Click here

 Mass Air Flow Meter

SEE MORE:

 Inspection

INSPECTION PROCEDURE 1. INSPECT CYLINDER HEAD SUB-ASSEMBLY (a) Using a precision straightedge and feeler gauge, measure the warpage of the contact surfaces where the cylinder head sub-assembly contacts the cylinder block sub-assembly, intake manifold and exhaust manifold (TWC: Front Catalyst). *

 Position Initialization Incomplete (B2343)

DESCRIPTION This DTC is stored when the sliding roof ECU (sliding roof drive gear sub-assembly) has not been initialized. DTC No. Detection Item DTC Detection Condition Trouble Area B2343 Position Initialization Incomplete Sliding roof ECU (sliding roof drive gear sub-assembly) has

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