2007 ISUZU KB P190 Workshop Repair Manual

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Page 3553 of 6020

ISUZU KB P190 2007 Workshop Repair Manual Engine Management – V6 – Service Operations Page 6C1-3–29

NOTE
After removing the upper intake manifold, plug
the lower manifold opening to prevent dirt and
other contaminants from enter

Page 3554 of 6020

ISUZU KB P190 2007 Workshop Repair Manual Engine Management – V6 – Service Operations Page 6C1-3–30

Disassemble
Fuel Injector
Remove
For each fuel injector:
1 Slide the fuel injector wiring connector locking tab (1) upwards in

Page 3555 of 6020

ISUZU KB P190 2007 Workshop Repair Manual Engine Management – V6 – Service Operations Page 6C1-3–31

4 Remove the fuel injector (1) from the fuel rail.
5 Remove and discard the fuel injector seals (2).
6
As required, repeat for

Page 3556 of 6020

ISUZU KB P190 2007 Workshop Repair Manual Engine Management – V6 – Service Operations Page 6C1-3–32

Fuel Injector Wiring Harness Assembly
Remove
1 For each fuel injector wiring harness connector, slide
the locking tab (1) upwards

Page 3557 of 6020

ISUZU KB P190 2007 Workshop Repair Manual Engine Management – V6 – Service Operations Page 6C1-3–33

Reinstall
Reinstallation of the fuel injector wiring harness assembly is the reverse of the removal procedure, noting the following:

Engine Management – V6 – Service Operations Page 6C1-3–33

Reinstall
Reinstallation of the fuel injector wiring harness assembly is the reverse of the removal procedure, noting the following:

Ensure there is no undue strain placed on the
fuel injector wiring harness (1) once it has
been positioned in the tray (2).
1 Lay the fuel injector wiring harness in the lower tray.
2 Clip the upper and lower fuel injector harness trays together, ensuring that all eight retainers are correctly
seated.
Figure 6C1-3 – 41
Reinstall
Reinstallation of the fuel rail assembly is the reverse of the removal procedure, noting the following:
1 Lubricate the fuel injector O-rings with engine oil.
2 Carefully reinstall the fuel rail and injector assembly.

Ensure the fuel injectors are correctly seated
in the lower intake manifold, and the fuel rail
attaching brackets are correctly located prior
to tightening the attaching bolts.
3 Reinstall the fuel rail attaching bolts and tighten to the correct torque specification. Fuel rail attaching bolt
torque specification ..................................8.0 – 12.0 Nm
4 Reconnect the fuel feed hose to the fuel rail, refer to 6C Fuel System - V6.
5 Inspect the fuel rail and quick connect fitting for leaks, refer to 6C Fuel System - V6.
6 Road test the vehicle and check for correct operation.
2.14 Heated Oxygen Sensor

To avoid the possibility of personal injury,
allow the exhaust pipe to cool to ambient
temperature (less than 50 °
°°
°
C) before
attempting to remove the oxygen sensor.
Service Precautions
• Handle the HO2S carefully. Do not drop it, and keep it free of grease, dirt and other contaminants. Do not use
cleaning solvents of any type on the HO2S.
• Do not repair the HO2S or any of its parts. Replace the HO2S if any damage is evident.
• The HO2S may be difficult to remove when the engine is cold. Excessive force may damage the threads in the
exhaust manifold or exhaust pipe.

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ISUZU KB P190 2007

Page 3558 of 6020

ISUZU KB P190 2007 Workshop Repair Manual Engine Management – V6 – Service Operations Page 6C1-3–34

• If the HO2S has been removed, but not replaced, anti-seize compound must be applied to the threads prior to
installation. New H

Page 3559 of 6020

ISUZU KB P190 2007 Workshop Repair Manual Engine Management – V6 – Service Operations Page 6C1-3–35

6 Unscrew the HO2S (1) from the exhaust pipe and
remove.
7 If required, test the HO2S, refer to the Test in this Section.

Fig

Page 3560 of 6020

ISUZU KB P190 2007 Workshop Repair Manual Engine Management – V6 – Service Operations Page 6C1-3–36

Remove
1 Turn the ignition switch off.
2 Raise the vehicle and support on safety stands, refer to 0A General Information for loc

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