PROCEDURE
PRECAUTION
Note
After turning the ignition switch off, waiting time may be required before disconnecting the cable from the negative (-) battery terminal. Therefore, make sure to read the disconnecting the cable from the negative (-) battery terminal notices before proceeding with work.
DISCHARGE FUEL SYSTEM PRESSURE
DISCONNECT CABLE FROM NEGATIVE BATTERY TERMINAL
Note
When disconnecting the cable, some systems need to be initialized after the cable is reconnected.
REMOVE INTAKE MANIFOLD
REMOVE NO. 1 FUEL PIPE SUB-ASSEMBLY
DISCONNECT NO. 4 ENGINE WIRE
Disconnect the 4 fuel injector assembly connectors.
Disconnect the fuel pressure sensor connector.
REMOVE FUEL DELIVERY PIPE
|
Bolt |
|
Nut |
Remove the 3 bolts, 2 nuts and fuel delivery pipe with the fuel injector assemblies.
Note
Make sure not to touch or strike the tips of the fuel injector assemblies.
Pull and remove the fuel delivery pipe in a straight line without tilting it.
REMOVE FUEL INJECTOR ASSEMBLY
| *1 | NO. 3 |
Secure the fuel delivery pipe in a vise between aluminum plates and pull out the 4 fuel injector assemblies.
Note
Pull and remove each fuel injector assembly in a straight line to avoid damaging the seal surface of the fuel delivery pipe O-ring.
After removing the fuel injector assemblies, remove any O-rings, No. 1 fuel injector back-up rings and No. 3 fuel injector back-up rings remaining on the fuel delivery pipe side.
Attach a tag or label with the corresponding cylinder number to each fuel injector assembly so that they can be installed to their original locations.
Remove the nozzle holder clamp from each fuel injector assembly.
Using needle nose pliers, remove the No. 3 fuel injector back-up ring from each fuel injector assembly.
Note
Do not damage the area that contacts the O-ring.
Remove the O-ring and No. 1 fuel injector back-up ring from each fuel injector assembly.
Remove the C-ring and injector vibration insulator from each fuel injector assembly.
REMOVE FUEL INJECTOR SEAL
Using the tip of needle nose pliers, pinch and pull the fuel injector seal at several points to stretch it.
Note
Excessively pinching the fuel injector seal may damage the groove of the fuel injector assembly.
If a fuel injector assembly is dropped or the tip of the fuel injector assembly is struck, replace it with a new one.
Remove the fuel injector seal from each fuel injector assembly.