REMOVAL AND INSTALLATION <4B1>



caution
  • When removing or installing the manifold absolute pressure sensor, be careful not to apply impact to the sensor.
  • Do not reuse the manifold absolute pressure sensor that has been dropped.
Pre-removal operation
  • Engine Coolant Draining (Refer to GROUP 14A - On-vehicle Service, Engine Coolant Replacement ).
  • Brake Booster Vacuum Hose Removal (Refer to GROUP 35A - Master Cylinder Assembly and Brake Booster <Except PHEV-LHD>, <Except PHEV-RHD>, <PHEV-LHD>, <PHEV-RHD>).
  • Engine Upper Cover Removal (Refer to GROUP 11A - Camshaft <4B1-Except PHEV>, <4B1-PHEV>).
  • Alternator and Others Belt Removal (Refer to GROUP 11A - Crankshaft Pulley <4B1-Except PHEV>, <4B1-PHEV>).
  • Air Cleaner Bracket A, B Removal <4B1-PHEV> (Refer to ).
  • Air Cleaner Intake Hose and Air Cleaner Assembly Removal (Refer to <4B1-Except PHEV>, <4B1-PHEV>).
  • Throttle Body Assembly Removal (Refer to GROUP 13A - Throttle Body Assembly <4B1-4B1-Except PHEV>, <4B1-PHEV>).
  • Fuel Injector Removal (Refer to GROUP 13A - Injector <4B1-Except PHEV>, <4B1-PHEV>).

Post-installation operation
  • Fuel Injector Installation (Refer to GROUP 13A - Injector <4B1-Except PHEV>, <4B1-PHEV>).
  • Throttle Body Assembly Installation (Refer to GROUP 13A - Throttle Body Assembly <4B1-4B1-Except PHEV>, <4B1-PHEV>).
  • Air Cleaner Intake Hose and Air Cleaner Assembly Installation (Refer to <4B1-Except PHEV>, <4B1-PHEV>).
  • Air Cleaner Bracket A, B Installation <4B1-PHEV> (Refer to ).
  • Alternator and Others Belt Installation (Refer to GROUP 11A - Crankshaft Pulley <4B1-Except PHEV>, <4B1-PHEV>).
  • Engine Upper Cover Installation (Refer to GROUP 11A - Camshaft <4B1-Except PHEV>, <4B1-PHEV>).
  • Brake Booster Vacuum Hose Installation (Refer to GROUP 35A - Master Cylinder Assembly and Brake Booster <Except PHEV-LHD>, <Except PHEV-RHD>, <PHEV-LHD>, <PHEV-RHD>).
  • Engine Coolant Refilling (Refer to GROUP 14A - On-vehicle Service, Engine Coolant Replacement ).





Removal steps


1.
Control wiring harness connection


2.
Rocker cover PCV hose connection


3.
Emission vacuum hose

>>C<<
4.
Purge control solenoid valve

>>C<<
5.
O-ring

>>C<<
6.
Manifold absolute pressure sensor

>>C<<
7.
O-ring


8.
Engine oil level gauge

>>B<<
9.
Inlet manifold stay

>>B<<
10.
Inlet manifold stay B <4B1-Except PHEV>

>>B<<
11.
Inlet manifold stay C <4B1-Except PHEV>

>>A<<
12.
Injector protector front

>>A<<
13.
Inlet manifold


14.
Inlet manifold gasket


15.
Gasket

INSTALLATION SERVICE POINTS



>>A<< INLET MANIFOLD/INJECTOR PROTECTOR FRONT INSTALLATION


Install the inlet manifold and the injector protector front, and tighten mounting bolts and nuts temporarily.
note The tightening of the fuel delivery pipe, the inlet manifold and the injector protector front and rear has the specified order. Temporarily tighten the inlet manifold and injector protector front mounting bolts and nuts (Refer to GROUP 13A - Injector <4B1-Except PHEV>, GROUP 13E - Injector <4B1 PHEV>).

>>B<< INLET MANIFOLD STAY INSTALLATION


Make sure that the inlet manifold stay is in intimate contact with the inlet manifold and cylinder block boss before tightening it to the specified torque of 20 ± 2 N·m.

>>C<< O-RING/MANIFOLD ABSOLUTE PRESSURE SENSOR/PURGE CONTROL SOLENOID VALVE INSTALLATION


1.Apply a small amount of new engine oil to the O-ring.
2.Install the manifold absolute pressure sensor and the purge control solenoid valve to the inlet manifold with care not to damage the O-ring.
3.
caution Do not over-tighten. If the mounting screw is over-tightened, the inlet manifold can be damaged.
Tighten the mounting screws to the specified torque.
Tightening torque: 4.0 ± 1.0 N·m