REMOVAL AND INSTALLATION <135>


caution When the fuel injector replacement is performed, idling speed may be unstable because the MPI engine learning is not completed. To make it stable, make the system learn the idling (Refer to GROUP 00, Precautions before Service - Learning Procedure for Idling in MPI Engine ).
Pre-removal Operation
  • Fuel Line Pressure Reduction (Refer to ).

 Post-installation Operation
  • Fuel Leakage Inspection.




Removal steps


1.
 PCV hose connection


2.
 Ignition coil connector connection


3.
 Fuel injector connector connection


4.
 Control wiring harness clamp
<<A>>
 >>E<<
 5.
 Fuel main pipe connection

>>D<<
 6.
 Fuel delivery pipe and fuel injector assembly


7.
 Fuel injector insulator

>>C<<
 8.
 Fuel injector support

>>B<<
 9.
 Fuel injector assembly

>>A<<
 10.
 O-ring

>>A<<
 11.
 O-ring


12.
 Fuel injector


13.
 Fuel delivery pipe

REMOVAL SERVICE POINT

<<A>> FUEL MAIN PIPE DISCONNECTION

Raise the retainer, and pull out the fuel main pipe.
note If the retainer comes off, install it securely after pulling out the fuel main pipe.

INSTALLATION SERVICE POINTS

>>A<< O-RING INSTALLATION

1.Apply a small amount of new engine oil to the O-ring.
2.While turning the fuel injector to the right and left, install the O-ring to the fuel injector with care not to damage the O-ring.

>>B<< FUEL INJECTOR ASSEMBLY INSTALLATION
1.
caution Do not let the engine oil get into the fuel delivery pipe will be damaged.
Apply a drop of new engine oil to the O-ring.
2.Turn the fuel injector assembly to the right and left to install to the fuel delivery pipe. Be careful not to damage the O-ring. After installing, check that the item turns smoothly.
3.If it does not turn smoothly, the O-ring may be trapped, remove the fuel injector assembly, re-install it into the fuel delivery pipe and check again.

4.Install the fuel injector assembly so that the convex portion of the fuel injector is located at the centre of the fuel delivery pipe brim.

>>C<< FUEL INJECTOR SUPPORT INSTALLATION

Install the fuel injector support to the fuel injector groove and fuel delivery pipe brim, and fix the fuel injector assembly and fuel delivery pipe.

>>D<< FUEL DELIVERY PIPE AND FUEL INJECTOR ASSEMBLY INSTALLATION
1.
caution Do not let the engine oil get into the engine will be damaged.
Apply a small amount of new engine oil to the O-ring at the tip of the fuel injector assembly.
2.
caution When installing the fuel delivery pipe and fuel injector assembly to the cylinder head, take care not to damage the O-ring at the tip of the fuel injector assembly.
Install the fuel delivery pipe and fuel injector assembly to the cylinder head. Be careful not to damage the O-ring.
3.Tighten the new fuel delivery pipe mounting bolts to the specified torque.
Tightening torque: 18 ± 1 N·m

>>E<< FUEL MAIN PIPE CONNECTION

caution After connecting the fuel main pipe, check that it has been securely installed by slightly pulling in the removal direction. At this time, also check that there is approximately 3-mm play.