RM36D0EC _51 Engine / Hybrid System _083062 M20D-FKS INTAKE / EXHAUST _0402932 EXHAUST MANIFOLD A

M20D-FKS INTAKE / EXHAUST EXHAUST MANIFOLD 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 exhaust manifold 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
Front exhaust pipe assembly	GPF deposition value clear	· MIL comes on · Deterioration of fuel efficiency	(202304,202409,_51,_083058,_0401834,RM1000000029C6V,202409,999999,_51,_083058,_0401834,RM100000002NA8M,)
· Replacement of air fuel ratio sensor · Gas leak from exhaust system is repaired	Inspection After Repair	· Poor idle, etc. · Engine start function, etc.	(202304,202409,_51,_083058,_0401834,RM1000000029C6V,202409,999999,_51,_083058,_0401834,RM100000002NA8M,)
Exhaust manifold	Total Short Trip Estimate	· MIL comes on · Deterioration of fuel efficiency	(202304,202409,_51,_083058,_0401834,RM1000000029C6V,202409,999999,_51,_083058,_0401834,RM100000002NA8M,)

CAUTION:: ·

To prevent burns, do not touch the engine, exhaust manifold or other high temperature components while the engine is hot.

·

To prevent burns, do not touch the engine, exhaust pipe or other high temperature components while the engine is hot.

PROCEDURE

Hide Display 51420 1.REMOVE NO. 2 ENGINE UNDER COVER ASSEMBLY

Click hereEngine / Hybrid System>M20D-FKS (ENGINE MECHANICAL)>ENGINE ASSEMBLY>REMOVAL202304,202405,_51,_083059,_0403046,RM1000000029XAE_01_0004,202405,202409,_51,_083059,_0403046,RM100000002JNSM_01_0004,202409,999999,_51,_083059,_0403046,RM100000002NRBV_01_0004,

Hide Display 17410 2.REMOVE FRONT EXHAUST PIPE ASSEMBLY

CAUTION:: To prevent burns, do not touch the engine, exhaust pipe or other high temperature components while the engine is hot.

Detach the 2 wire harness clamps.

Disconnect the air fuel ratio sensor (for Sensor 2) connector.

Detach the 2 clamps.

Disconnect the exhaust gas temperature sensor connector.

Detach the 4 clamps.

Disconnect the No. 2 exhaust gas temperature sensor connector.

Remove the 2 bolts, 2 nuts and disconnect the front exhaust pipe assembly from the exhaust manifold and tail exhaust pipe assembly.

Remove the front exhaust pipe assembly from the 2 exhaust pipe supports.

Remove the 2 gaskets from the front exhaust pipe assembly.

Hide Display 89467B 3.REMOVE AIR FUEL RATIO SENSOR (for Sensor 1)

Click hereEngine / Hybrid System>M20D-FKS (ENGINE CONTROL)>AIR FUEL RATIO SENSOR>REMOVAL202304,999999,_51,_083058,_0401830,RM100000002B2M2_01_0002,

Hide Display 4.REMOVE WIRE HARNESS CLAMP BRACKET

Remove the bolt and wire harness clamp bracket.

Hide Display 25760 5.REMOVE VACUUM TRANSMITTING HOSE ASSEMBLY

Slide the clip and remove the vacuum transmitting hose assembly from the No. 1 vacuum transmitting pipe sub-assembly.

Hide Display 25706 6.REMOVE NO. 1 VACUUM TRANSMITTING PIPE SUB-ASSEMBLY

Remove the nut and disconnect the No. 1 vacuum transmitting pipe sub-assembly from the exhaust manifold.

Using a 14 mm union nut wrench, remove the No. 1 vacuum transmitting pipe sub-assembly from the exhaust manifold.

Hide Display 17167 7.SEPARATE NO. 1 EXHAUST MANIFOLD HEAT INSULATOR

CAUTION:: To prevent burns, do not touch the engine, exhaust manifold or other high temperature components while the engine is hot.

Remove the 3 bolts and separate the No. 1 exhaust manifold heat insulator from the exhaust manifold.

Hide Display 58151 8.SEPARATE NO. 1 UPPER FRONT FLOOR HEAT INSULATOR

CAUTION:: To prevent burns, do not touch the engine, exhaust manifold or other high temperature components while the engine is hot.

Remove the 2 nuts and separate the No. 1 upper front floor heat insulator from the vehicle body.

Hide Display 17118 9.REMOVE MANIFOLD STAY

CAUTION:: To prevent burns, do not touch the engine, exhaust manifold or other high temperature components while the engine is hot.

Remove the bolt, nut and manifold stay from the exhaust manifold and cylinder block sub-assembly.

Hide Display 17141 10.REMOVE EXHAUST MANIFOLD

CAUTION:: To prevent burns, do not touch the engine, exhaust manifold or other high temperature components while the engine is hot.

Using a 12 mm deep socket wrench, remove the 7 nuts and separate the exhaust manifold from the cylinder head sub-assembly.

Remove the No. 1 exhaust manifold heat insulator, No. 1 upper front floor heat insulator and exhaust manifold.

Remove the exhaust manifold to head gasket from the cylinder head sub-assembly.

Hide Display 17168 11.REMOVE NO. 2 EXHAUST MANIFOLD HEAT INSULATOR

Remove the 3 bolts and No. 2 exhaust manifold heat insulator from the exhaust manifold.