2007 ISUZU KB P190 Workshop Repair Manual

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Page 1553 of 6020

ISUZU KB P190 2007 Workshop Repair Manual 6C-12 FUEL SYSTEM (4JK1/4JJ1)
Fuel Filter Assembly
Components

RTW 76CSF000101
Legend
1. Fuel Sedimenter Connector 2. Bolt
3. Harness Connector
4. Fuel Hose
5.

Page 1554 of 6020

ISUZU KB P190 2007 Workshop Repair Manual FUEL SYSTEM (4JK1/4JJ1) 6C-13
Fuel Filter Element
Removal
1. Detach the drain hose on the lower part of the fuel
filter or the drain plug, loosen the air bleed plug,
and drain the fuel from the

Page 1555 of 6020

ISUZU KB P190 2007 Workshop Repair Manual 6C-14 FUEL SYSTEM (4JK1/4JJ1)
Fuel Injector
Components

RTW 76CLF000101
Legend 1. Cylinder Head Cover
2. Fuel Injector Clamp
3. Fuel Injector Clamp Bolt
4. Fuel Inject

Page 1556 of 6020

ISUZU KB P190 2007 Workshop Repair Manual FUEL SYSTEM (4JK1/4JJ1) 6C-15
The fuel system consists of many tiny holes and spaces
that allow the movement of fuel from one place to
another. These holes and spaces are milled to
extremely high p

FUEL SYSTEM (4JK1/4JJ1) 6C-15
The fuel system consists of many tiny holes and spaces
that allow the movement of fuel from one place to
another. These holes and spaces are milled to
extremely high precision. This is especially true of the
fuel injector.
The fuel injector is very sensitive to foreign material.
Foreign material will result in fuel system breakdown.
Exercise great care not to allow the entry of foreign
material into the fuel system or fuel injector during the
removal and installation procedure.
Note: To avoid electric shock;
Set the switch to the 'OFF' position and disconnect the
negative battery cable before checking or repairing the
fuel injector, wiring or/and connectors.
Removal
1. Remove the cylinder head cover.
Refer to the removal procedure for the cylinde
r
head cover in this manual.
Remove the attachment bolt of the engine oil gauge
guide tube.
2. Loosen the fuel injector clamp fixing bolts and
remove the fuel injector.
If the fuel injector is difficult to remove, use the remover. Use a screwdriver to force the fuel
injector clamp off the fuel injector.
Note: Do not remove the fuel injector sleeve.
Note: Cover the areas exposed during parts removal to
prevent the entry of foreign material into the fuel
system.
3. Mark each fuel injector with the number of the cylinder from which it was removed. Store the fuel
injector in a safe place. Position the fuel injector so
that the nozzle is protected.

Note: Do not tamper with the electromagnetic portion of
the fuel injector. Reduced electromagnetic function will
result in injector failure.
Note: After replacement of the fuel injector, perform the
following procedure.
• All fuel injectors are replaced:
Remove the fuel injector ID code label on the cylinder head cover.
• Any fuel injector(s) is replaced:
Black out the replaced cylinder of the fuel injecto
r
ID code on the fuel injector ID code label with a
marking pen or equivalent.
Installation
1. Install the new gasket and O-ring to each fuel
injector.
Note: Do not reuse the clips (3).

RTW 66CSH000101
Legend
1. Fuel Injector
2. Leak Off Pipe
3. Clip
4. O-ring
5. Gasket

2. Install the fuel injector clamps. Refer to the
illustration.

RTW 56CSH000601
Legend
1. Fuel Injector
2. Bolt
3. Fuel Injector Clamp

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ISUZU KB P190 2007

Page 1557 of 6020

ISUZU KB P190 2007 Workshop Repair Manual 6C-16 FUEL SYSTEM (4JK1/4JJ1)
3. Apply Engine oil to the threads and seating
surfaces of the clamp bolts.
4. Install the fuel injector clamps to the cylinder head.
5. Temporarily tighten the cla

Page 1558 of 6020

ISUZU KB P190 2007 Workshop Repair Manual FUEL SYSTEM (4JK1/4JJ1) 6C-17
Record the Fuel Injector ID Code Data from
each injector housing
1. Remove each fuel injector harness connector.
2. Record all numbers of each cylinder on the har

Page 1559 of 6020

ISUZU KB P190 2007 Workshop Repair Manual 6C-18 FUEL SYSTEM (4JK1/4JJ1)
Torque Specifications

RTW 76CLF000201

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ISUZU KB P190 2007

Page 1560 of 6020

ISUZU KB P190 2007 Workshop Repair Manual FUEL SYSTEM (4JK1/4JJ1) 6C-19
Fuel Rail Pressure Sensor
Removal
1. Disconnect the fuel pressure sensor harness
connector (1).

LNW 76CSH001601
2. Remove the fuel pressure sensor (2).
N

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