CYLINDER HEAD DISASSEMBLY

CAUTION / NOTICE / HINT

The necessary procedures (adjustment, calibration, initialization, or registration) that must be performed after parts are removed and installed, or replaced during engine unit removal/installation are shown below.

Necessary Procedure After Parts Removed/Installed/Replaced
Replaced Part or Performed Procedure Necessary Procedure Effect/Inoperative Function when Necessary Procedure not Performed Link
Battery terminal is disconnected/reconnected Perform steering sensor zero point calibration Lane departure alert system (w/ Steering Control)

Click here

Pre-collision system
Memorize steering angle neutral point Parking assist monitor system

Click here

Replacement of ECM Vehicle Identification Number (VIN) registration MIL comes on

w/ Canister Pump Module: Click here

w/o Canister Pump Module: Click here

Perform code registration (Immobiliser system) Engine start function See Service Bulletin for the registration method.

  • Replacement of engine assembly

  • Gas leak from exhaust system is repaired

  • Replacement of throttle body with motor assembly

  • Replacement of cam timing control motor with EDU assembly

  • Removal and installation of a cam timing control motor with EDU assembly

  • Replacement of camshaft timing gear assembly

  • Removal and installation of a camshaft timing gear assembly

  • Replacement of cylinder head sub-assembly

  • Replacement of camshaft (for intake or exhaust camshaft)

  • Replacement of camshaft timing exhaust gear assembly

  • Replacement of port fuel injector assembly

  • Replacement of direct fuel injector assembly

  • Replacement of fuel pump assembly (for high pressure side)

  • Replacement of engine coolant temperature sensor

  • Replacement of spark plug

  • Replacement of ignition coil assembly

  • Replacement of EGR valve assembly

  • Replacement of knock control sensor

  • Replacement of air fuel ratio sensor (sensor 2)

 Inspection After Repair

  • Poor idle, etc.

  • Engine start function, etc.

w/ Canister Pump Module: Click here

w/o Canister Pump Module: Click here

Replacement of automatic transaxle assembly

  1. Reset memory

  2. Input transaxle compensation code into ECM

  3. Perform road test to allow ECM to learn

  • Large shift shock

  • Deterioration of fuel efficiency

Click here for UB80E Initialization

Click here for UB80E Registration

Replacement of ECM

(If possible, read the transaxle compensation code from the previous ECM)

  1. Reset memory*1

  2. Transfer transaxle compensation code

  3. Perform road test to allow ECM to learn

Replacement of ECM

(If impossible, read the transaxle compensation code from the previous ECM)

  1. Reset memory*1

  2. Reset transaxle compensation code

  3. Perform road test to allow ECM to learn
Replacement of ECM Perform code registration (Immobiliser function)

  • Wireless door lock control system

  • Smart Entry and Start System (for Entry Function)

  • Smart Entry and Start System (for Start Function)

  • Steering lock function

 See Service Bulletin for the registration method.

Suspension, tires, etc.

(The vehicle height changes because of suspension or tire replacement)

 Rear television camera assembly optical axis (Back camera position setting) Parking assist monitor system

Click here for Initialization

Click here for Calibration
Perform headlight ECU sub-assembly LH initialization Lighting system (EXT) (w/ Automatic Headlight Beam Level Control System)

Click here

Front wheel alignment adjustment Perform system variant learning and acceleration sensor zero point calibration.

  • VSC disabled or malfunctioning

  • DTCs are output

  • Slip indicator light illuminated

  • ABS warning light illuminated

Click here

*1: When the ECM is replaced with a new one, reset memory is unnecessary.

PROCEDURE


  1. REMOVE INTAKE VALVE


    1. B006Z0QN01

      Using SST, compress each compression spring and remove the 8 valve spring retainer locks.

      SST
      09202-70020   ( 09202-01010, 09202-01020 )
      09202-00021

      Tech Tips

      Arrange the removed parts in such a way that they can be reinstalled to their original locations.

    2. Remove the 8 valve spring retainers, 8 compression springs and 8 intake valves from the cylinder head sub-assembly.

      Tech Tips

      Arrange the removed parts in such a way that they can be reinstalled to their original locations.

  2. REMOVE EXHAUST VALVE


    1. B006YIXN01

      Using SST, compress each compression spring and remove the 8 valve spring retainer locks.

      SST
      09202-70020   ( 09202-01010, 09202-01020 )
      09202-00021

      Tech Tips

      Arrange the removed parts in such a way that they can be reinstalled to their original locations.

    2. Remove the 8 valve spring retainers, 8 compression springs and 8 exhaust valves from the cylinder head sub-assembly.

      Tech Tips

      Arrange the removed parts in such a way that they can be reinstalled to their original locations.

  3. REMOVE VALVE STEM OIL SEAL


    1. B0071QV

      Using needle-nose pliers, remove the 16 valve stem oil seals.

  4. REMOVE VALVE SPRING SEAT


    1. B006X5C

      Using compressed air and a Magnet Hand, remove the 16 valve spring seats from the cylinder head sub-assembly by blowing air onto them.

  5. REMOVE NO. 1 STRAIGHT SCREW PLUG

    B006Y18

    Note

    If coolant leaks from a No. 1 straight screw plug or a plug is corroded, replace it.


    1. Using a 6 mm straight hexagon wrench, remove the 4 No. 1 straight screw plugs from the cylinder head sub-assembly.

  6. REMOVE STUD BOLT

    Note

    If a stud bolt is deformed or its threads are damaged, replace it.


    1. B006XTA

      Using an E8 "TORX" socket wrench, remove the 7 stud bolts.