2007 ISUZU KB P190 Wiring

Engine Mechanical – V6 Page 6A1–57

3.3 Oil Filter Adaptor
Remove

Disconnection of the battery affects certain
vehicle electronic systems, refer to 1.1
WARNING, CAUTION and NOTES before
disconnecting the battery.
1 Disconnect the battery negative terminal.
2 Disconnect the wiring harness connector from the oil pressure sender.

3 Remove the oil filter adaptor attaching bolts (2), four places.
4 Remove the oil filter adaptor and discard the gasket (3).
5 Clean the surfaces of the adaptor and cylinder block.

• Do not use a screwdriver or similar to
prise the oil filter adapter from the engine
as damage to the sealing surface may
occur.
• If required, use a rubber mallet to tap the
oil filter adapter to loosen the
components prior to separating.
Tapping should be done at bends,
corners or reinforced areas to prevent
distortion of parts.
Figure 6A1 – 27
Reinstall
Reinstallation of the oil filter adaptor is the reverse of the removal procedure, noting the following:
1 A new gasket must be used.
2 Loosely install the oil filter adaptor attaching bolts, then tighten all fasteners to the correct torque specification.
Oil filter adaptor attaching bolt
torque specification .................................. 20.0- 26.0 Nm

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ISUZU KB P190 2007

Engine Mechanical – V6 Page 6A1–58

3.4 Oil Level Indicator Tube
Remove
1 Remove the oil level indicator from the oil level indicator tube.
2 Remove the bolt (2) attaching the oil level indicator tube (1) and engine wiring harness retaining bracket.
3 W ithdraw the oil level indicator tube from the oil pan.
4 Remove and discard the o-ring at the bottom of the oil level indicator tube.
Figure 6A1 – 28
Reinstall
Reinstallation of the oil level indicator tube is the reverse of the removal procedure, noting the following:
1 Install a new oil level indicator o-ring.
2 Ensure the attaching bolt passes through the engine wiring harness retaining bracket.
3 Tighten bolt to the correct torque specification.
Oil level indicator tube attaching bolt
torque specification ...................................8.0 – 12.0 Nm


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ISUZU KB P190 2007

Engine Mechanical – V6 Page 6A1–64

3 Retract the throttle body wiring connector lock (3).
4 W hile pressing the connector latch in the direction of the arrow (4), disconnect the throttle body wiring
connector.
5 Disconnect the throttle body connector wiring harness from its retaining clip (5).
6 Remove the main wiring harness retainer pin (6) from the intake manifold by pushing from the front to the
rear using a suitable piece of 5 mm steel rod (or an
Allen key).

The following precautions must be followed
when disconnecting the throttle body wiring
connector:
• Do not use any mechanical device such
as a screwdriver to disengage the
harness connector (1) from the throttle
body (2).
• When retracting the throttle wiring
connector lock (3), take care not to
disengage the lock from the connector.
• Do not pull on the connector wires.
• Take care not to break the barbed
harness retainer pin (6) while removing
the harness retainer from the intake
manifold.
• Should the pin be broken, then it is
vital that a new harness retainer is
fitted to the wiring harness shield. If
not, the harness will foul the engine
drive belt.

Figure 6A1 – 35
7 Disconnect the brake booster hoses from the upper intake manifold:

Figure 6A1 – 36

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ISUZU KB P190 2007

Engine Mechanical – V6 Page 6A1–65

8 Disconnect the wiring harness connector from the
barometric (BARO) pressure sensor (1).

Figure 6A1 – 37
9 Disconnect the PCV tube connector (1) from the upper intake manifold assembly.

Figure 6A1 – 38
10 Remove the bolt (3) attaching the EVAP valve and the fuel injector wiring harness connector mounting
bracket to the upper intake manifold assembly.
11 Move the EVAP valve and the fuel injector wiring harness connector mounting bracket clear of the upper
intake manifold assembly.
12 Disconnect the PCV fresh air tube (1) from its upper intake manifold mounting clip (2).

Figure 6A1 – 39

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ISUZU KB P190 2007

Engine Mechanical – V6 Page 6A1–68

CAUTION
Tighten the intake manifold bolts in a circular
pattern starting at the centre bolt and moving
outward.
2 Ensure that all fasteners are tightened to the correct torque specification. Upper intake manifold to lower
intake manifold attaching bolt
torque specification ............................................23.0 Nm
Upper intake manifold to
cylinder head attaching bolt
torque specification ............................................23.0 Nm

Incorrect wiring connector installation may
cause component malfunction or component
damage.
3 Ensure all wiring connectors are fully engaged and if applicable, locked in place.
4 Ensure all wiring harnesses are correctly routed and attached securely in their retaining clips.
5 Ensure that all hoses and pipes are routed correctly and that any retaining clips are correctly installed.
6 Start and run the engine to check for correct operation.
3.10 Intake Manifold Assembly – Complete
The intake manifold comprises of an upper and lower section. Some service procedures only require the removal of the
upper intake manifold (e.g. fuel injector/spark plug servicing), while other service procedures require the removal of both
the upper and lower manifold as a complete assembly (e.g. cylinder head/s). If only the upper intake manifold needs to
be removed, refer to 3.9 Upper Intake Manifold.
Remove

Disconnection of the battery affects certain
vehicle electronic systems. Refer to 1.1
WARNING, CAUTION and NOTES before
disconnecting the battery.
1 Depressurise the fuel system.
2 Disconnect the battery negative terminal.

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Engine Mechanical – V6 Page 6A1–69

3 Remove the air intake duct (1) and hose (2), refer to
6C1-3 Engine Management – V6 – Service
Operations.

Figure 6A1 – 43
4 Retract the throttle body wiring connector lock (3).
5 W hile pressing the connector latch in the direction of the arrow (4), disconnect the throttle body wiring
connector.
6 Disconnect the throttle body connector wiring harness from its retaining clip (5).
7 Remove the main wiring harness retainer pin (6) from the intake manifold by pushing from the front to the
rear using a suitable piece of 5 mm steel rod (or an
Allen key).

The following precautions must be followed
when disconnecting the throttle body wiring
connector:
• Do not use any mechanical device such
as a screwdriver to disengage the
harness connector (1) from the throttle
body (2).
• When retracting the throttle wiring
connector lock (3), take care not to
disengage the lock from the connector.
• Do not pull on the connector wires.
• Take care not to break the barbed
harness retainer pin (6) while removing
the harness retainer from the intake
manifold.
• Should the pin be broken, then it is vital
that a new harness retainer is fitted to the
wiring harness shield. If not, the harness
will foul the engine drive belt.
Figure 6A1 – 44

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Engine Mechanical – V6 Page 6A1–70

8 Disconnect the brake booster hose (1), from the upper
intake manifold:

Figure 6A1 – 45
9 Disconnect the wiring harness connector from the barometric (BARO) pressure sensor (1).

Figure 6A1 – 46
10 Disconnect the PCV tube connector (1) from the upper intake manifold assembly.

Figure 6A1 – 47

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ISUZU KB P190 2007

Engine Mechanical – V6 Page 6A1–71

11 Disconnect the fuel feed hose from the fuel rail (1).
12 Pull out the release bar (2) (broad arrow) of the fuel injector harness wiring connector (3).
13 Disconnect the fuel injector harness wiring connector from the fuel injector wiring harness (4).


Plug the fuel feed hose opening after
removal to prevent dirt and other
contaminants from entering the fuel system.
Figure 6A1 – 48
14 Remove the wiring harness connector (2) from the EVAP valve (1).
15 Disconnect the quick connect (3) from the rear of the EVAP valve, as follows:
a Squeeze the two barbed lugs together, push the quick connect into the valve, then pull out to separate the
connection.
b Plug both open ends to prevent the entry of foreign matter.

Figure 6A1 – 49
16 Remove the bolt (3) attaching the EVAP valve and the fuel injector wiring harness connector mounting
bracket to the upper intake manifold assembly.
17 Move the EVAP valve and the fuel injector wiring harness connector mounting bracket clear of the
upper intake manifold assembly.
18 Disconnect the PCV fresh air tube (1) from its upper intake manifold mounting clip (2).
Figure 6A1 –
––
–
50

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