RM36D0EC _51 Engine / Hybrid System _083059 M20D-FKS ENGINE MECHANICAL _0403048 CYLINDER HEAD A

M20D-FKS ENGINE MECHANICAL 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 cylinder head 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
Replacement of ECM	Perform Vehicle Identification Number (VIN) or frame number registration	DTC P063051 is output	(202304,999999,_51,_083058,_0401834,RM1000000029C6T,)
	Perform Total Short Trip Estimate Registration	-
	GPF Deposition Values: · GPF deposition values save · GPF deposition values write	· MIL comes on · Deterioration of fuel efficiency
	Update ECU security key	Vehicle Control History (RoB) are stored	(202405,999999,_V1,_083041,_0402305,RM100000002ISNL,)
	ECU communication ID registration	Engine start function	See Service Bulletin for the registration method.
	for K121: If transaxle compensation code read from ECM - Transfer transaxle compensation code - Deceleration sensor zero point calibration - CVT oil pressure calibration - Perform road test to allow ECM to learn	· Large shift shock · Deterioration of fuel efficiency	for Initialization: (202409,999999,_52,_138176,_0584691,RM100000002NRHB,) for Registration: (202304,999999,_52,_138176,_0584691,RM1000000029HF6,)
	for K121: If transaxle compensation code not read from ECM - Reset transaxle compensation code - Deceleration sensor zero point calibration - CVT oil pressure calibration - Perform road test to allow ECM to learn	· Large shift shock · Deterioration of fuel efficiency
	for K121F: If transaxle compensation code read from ECM - Transfer transaxle compensation code - Deceleration sensor zero point calibration - CVT oil pressure calibration - Perform road test to allow ECM to learn	· Large shift shock · Deterioration of fuel efficiency	for Initialization: (202409,999999,_52,_138817,_0596468,RM100000002NRBH,) for Registration: (202304,999999,_52,_138817,_0596468,RM100000002AWR8,)
	for K121F: If transaxle compensation code not read from ECM - Reset transaxle compensation code - Deceleration sensor zero point calibration - CVT oil pressure calibration - Perform road test to allow ECM to learn	· Large shift shock · Deterioration of fuel efficiency
Exhaust manifold	Reset total short trip estimate	· MIL comes on · Deterioration of fuel efficiency	(202409,999999,_51,_083058,_0401834,RM100000002NA8M,)
Replacement of front exhaust pipe assembly	GPF deposition value clear	· MIL comes on · Deterioration of fuel efficiency	(202409,999999,_51,_083058,_0401834,RM100000002NA8M,)
· Throttle body with motor assembly · Cam timing control motor with EDU assembly (Including removal and installation) · Camshaft timing gear assembly (Including removal and installation) · Cylinder head sub-assembly · Camshaft (for intake or exhaust camshaft) · Camshaft timing exhaust gear assembly · Piston or piston ring · Mass air flow meter sub-assembly · Port fuel injector assembly · Direct fuel injector assembly · Fuel pump (for low pressure side) · Fuel pump assembly (for high pressure side) · Fuel pressure sensor (for low pressure side) · Fuel pressure sensor (for high pressure side) · Air fuel ratio sensor (sensor 1) · Air fuel ratio sensor (sensor 2) · Engine coolant temperature sensor · Spark plug · Ignition coil assembly · EGR valve assembly · Air intake system parts · Gas leaks from exhaust system · Knock control sensor	Inspection after repair	· Poor idle, etc. · Engine start function, etc.	(202409,999999,_51,_083058,_0401834,RM100000002NA8M,)
for K121: Replacement of continuously variable transaxle assembly	Air bleed oil pump with motor assembly	Stop and start system	(202409,999999,_51,_083056,_0402418,RM100000002NSFT,)
	· Input transaxle compensation code into ECM · Perform reset memory · Deceleration sensor zero point calibration · CVT oil pressure calibration · Perform road test to allow ECM to learn	· Large shift shock · Deterioration of fuel efficiency	for Initialization: (202409,999999,_52,_138176,_0584691,RM100000002NRHB,) for Registration: (202304,999999,_52,_138176,_0584691,RM1000000029HF6,)
for K121F: Replacement of continuously variable transaxle assembly	Air bleed oil pump with motor assembly	Stop and start system	(202409,999999,_51,_083056,_0402418,RM100000002NSFT,)
	· Input transaxle compensation code into ECM · Perform reset memory · Deceleration sensor zero point calibration · CVT oil pressure calibration · Perform road test to allow ECM to learn	· Large shift shock · Deterioration of fuel efficiency	for Initialization: (202409,999999,_52,_138817,_0596468,RM100000002NRBH,) for Registration: (202304,999999,_52,_138817,_0596468,RM100000002AWR8,)
CVT fluid	ATF thermal degradation estimate reset	The value of the Data List item "ATF Thermal Degradation Estimate" is not estimated correctly	for K121: (202409,999999,_52,_138176,_0584691,RM100000002NRHB,) for K121F: (202409,999999,_52,_138817,_0596468,RM100000002NRBH,)
CVT fluid	Air bleed oil pump with motor assembly	Stop and start system	(202409,999999,_51,_083056,_0402418,RM100000002NSFT,)
Front bumper assembly (Including removal and installation)	Front television camera view adjustment	Panoramic view monitor system	(202304,999999,_56,_083082,_0586733,RM1000000029R9F,)
Suspension, tires, etc.	Parking assist ECU initialization	Panoramic view monitor system	(202304,999999,_56,_083082,_0586733,RM1000000029R9F,)
Front wheel alignment adjustment	1. Perform "Reset Memory". 2. Perform acceleration sensor zero point calibration and store system information memorization.	· VSC is disabled or malfunctions · DTCs are output · Slip indicator light illuminates · ABS warning light illuminates	(202304,999999,_54,_083077,_0402316,RM100000002AG8P,)

HINT:

When the cable is disconnected / reconnected to the auxiliary battery terminal, systems temporarily stop operating. However, each system has a function that completes learning the first time the system is used.

Learning completes when vehicle is driven

Effect/Inoperative Function When Necessary Procedures are not Performed	Necessary Procedures	Link
Stop and start system	Drive the vehicle until stop and start control is permitted (approximately 5 to 60 minutes).	(202409,999999,_51,_083056,_0402418,RM100000002NSFO,)
Lane tracing assist system	Drive the vehicle straight ahead at 15 km/h (10 mph) or more for 1 second or more.	(201910,999999,_58,_083101,_0401880,RM100000001JE9I,)
Pre-collision system		(201910,999999,_58,_083101,_0401880,RM100000001JE9I,)

Learning completes when vehicle is operated normally

Effect/Inoperative Function When Necessary Procedures are not Performed	Necessary Procedures	Link
*: w/ Power back door system
Power back door function*	Fully close the back door by hand. HINT: Initialization is not necessary if the above procedures are performed while the back door is closed.	(202304,999999,_59,_083093,_0584672,RM1000000029PGT,)
Power door lock control system	If the back door is locked and therefore cannot be opened, it is necessary to unlock the back door using the door control switch, electrical key transmitter sub-assembly switch.	(202409,999999,_58,_083092,_0403003,RM100000002NS90,)
Air conditioning system	After the ignition switch is turned to ON, the servo motor standard position is recognized	-

PROCEDURE

Hide Display 13711 1.REMOVE INTAKE VALVE

2.146,1.833 1.802,2 false 1.563,0.135 0.958,0.438 true 1.469,1.917 1.927,2.115 0.458,0.198 10 false SST 1.635,0.052 2.094,0.25 0.458,0.198 10 false SST

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

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

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

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

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

Hide Display 13715 2.REMOVE EXHAUST VALVE

1.542,1.75 1.729,1.958 false 1.885,0.156 2.323,0.24 true 1.771,1.865 2.229,2.063 0.458,0.198 10 false SST 1.573,0.073 2.031,0.271 0.458,0.198 10 false SST

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

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

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

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

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

Hide Display 3.REMOVE VALVE STEM OIL SEAL

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

Hide Display 4.REMOVE VALVE SPRING SEAT

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

Hide Display 11117E 5.REMOVE NO. 1 STRAIGHT SCREW PLUG

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

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

Hide Display 6.REMOVE STUD BOLT

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

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