NR Series FUEL FUEL INJECTOR 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 fuel injector assembly removal/installation are shown below.
| Replaced Part or Performed Procedure | Necessary Procedure | Effect/Inoperative Function when Necessary Procedure not Performed | Link |
|---|---|---|---|
·
Replacement of fuel injector assembly ·
Replacement of fuel pump assembly ·
Replacement of fuel pressure sensor (fuel delivery pipe) ·
Replacement of throttle body with motor assembly ·
Cleaning the deposits from the throttle body with motor assembly |
Inspection after repair | ·
Poor idle, etc. ·
Engine start function, etc. |
( 201906,999999,_51,_080777,_0393969,RM100000001I1RE,)
|
- CAUTION:
- ·
Never perform work on fuel system components near any possible ignition sources.
·Vaporized fuel could ignite, resulting in a serious accident.
·
Do not perform work on fuel system components without first disconnecting the cable from the negative (-) battery terminal.
·Sparks could cause vaporized fuel to ignite, resulting in a serious accident.
·
To prevent serious injury due to fuel spray from the high-pressure fuel lines, always discharge fuel system pressure before removing any fuel system components.
- NOTICE:
-
After the ignition switch is turned off, there may be a waiting time before disconnecting the negative (-) battery terminal.
- HINT:
-
When the cable is disconnected / reconnected to the 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 Procedure not Performed Necessary Procedure Link Stop and Start System Idle the engine for approximately 5 to 60 minutes or drive the vehicle until stop and start control is permitted ( 201906,999999,_51,_080774,_0393362,RM100000001HXHC,)
Pre-collision System Perform steering sensor zero point calibration ( 202304,999999,_95,_139716,_0601175,RM100000002BFOE,)
Lane Tracing Assist System
PROCEDURE
23100X
1.REMOVE FUEL (ENGINE ROOM SIDE) PUMP ASSEMBLY
82124
2.DISCONNECT NO. 4 ENGINE WIRE
Disconnect the 4 fuel injector assembly connectors.
Disconnect the fuel pressure sensor (fuel delivery pipe) connector.
23814B
3.REMOVE FUEL DELIVERY PIPE
Remove the 5 bolts and fuel delivery pipe with the fuel injector assemblies.
- NOTICE:
- ·
If fuel intrudes into the combustion chamber, there may be adverse effects to the engine main body.
·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.
23250
4.REMOVE FUEL INJECTOR ASSEMBLY
Secure the fuel delivery pipe in a vise between aluminum plates and pull out the 4 fuel injector assemblies.
- NOTICE:
- ·
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.
- NOTICE:
-
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.
23255A
5.REMOVE FUEL INJECTOR SEAL
Using the tip of needle nose pliers, pinch and pull the fuel injector seal at several points to stretch it.
- NOTICE:
- ·
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.