Wiring harness ISUZU KB P190 2007 Workshop Manual PDF

Engine Mechanical – V6 Page 6A1–76

2 Remove the oxygen sensor harness connector (1)
from the retaining bracket.
3 Disconnect the oxygen sensor wiring harness connector from the engine wiring harness connector
(2).
4 Unclip the oxygen sensor wiring harness retaining clip and move aside.
5 For the left-hand side: Remove the oil level indicator tube.
6 Raise the front of the vehicle and place on stands, refer to 0A General Information.
7 W orking from under the vehicle, remove the two exhaust manifold to exhaust pipe flange nuts, refer to
6F Exhaust System - V6 - V6.
Figure 6A1 – 56
8 Remove the three bolts attaching the exhaust manifold outer heat shield (1) to the exhaust manifold
(2).

Figure 6A1 – 57
9 Progressively loosen the seven exhaust manifold attaching bolts (2), working from the outside to the
centre and then remove the bolts.
10 Manoeuvre the exhaust manifold (3), away from the cylinder head.
11 Remove and discard the exhaust manifold to cylinder head gasket.



Figure 6A1 – 58

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Engine Mechanical – V6 Page 6A1–79

3.12 Camshaft Cover
Remove
1 Remove the intake manifold assembly, refer to 3.10 Intake Manifold Assembly – Complete.
2 For the left-hand side, remove the evaporative (EVAP) emission canister purge solenoid, refer to 6C1-3 Engine Management – V6 – Service Operations.
3 Remove the two bolts (1) attaching the engine wiring harness former to the rear of the cylinder heads.
4 Unclip the transmission vent tube (2) from the engine wiring harness.
Figure 6A1 – 61
5 Disconnect the oxygen sensor wiring harness connector (1) from the engine wiring harness (2), left-
hand shown, right-hand similar.
Figure 6A1 – 62

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Engine Mechanical – V6 Page 6A1–80

6 Remove the bolt (1) attaching the ground connector
(2) to the cylinder head.
7 Fro the left-hand side, disconnect the engine coolant temperature (ECT) sensor wiring connector (3).
8 Unclip the engine wiring harness retaining lugs from the side of the camshaft cover.
Figure 6A1 – 63
9 For the right-hand side, remove the engine wiring harness retaining clip (1) from the engine control
module (ECM) bracket (2).
Figure 6A1 – 64
10 Disconnect the camshaft position (CMP) sensor wiring connector (1).
11 Unclip the engine wiring harness retaining lug (3) from the front of the camshaft cover.
12 Remove the ignition coil assemblies; refer to 6C1-3 Engine Management – V6 – Service Operations.
13 Move the engine wiring harness clear of the camshaft cover.


Figure 6A1 – 65

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Engine Mechanical – V6 Page 6A1–84

8 Remove Tool No. EN-46101 (1).
9 Tighten all remaining fasteners to the correct torque specification.




Engine ground connector bolt
torque specification ............................................10.0 Nm
Engine wiring harness former attaching
bolt torque specification ..........................12.0 – 16.0 Nm

Figure 6A1 – 74
3.13 Crankshaft Balancer Assembly
Remove
1 Remove the accessory drive belt, refer to 3.5 Accessory Drive Belt.
2 Remove the starter motor, refer to 6D1-2_ Starting System.
3 Install Tool No. EN-46106 (1) into the starter motor opening to stop the camshaft from rotating.
Figure 6A1 – 75

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Engine Mechanical – V6 Page 6A1–187


Plug the fuel feed hose after removal to
prevent dirt entering the pipe.
12 Disconnect the fuel pipe connector and injector harness connector.
13 Disconnect the fuel feed hose from the fuel rail (1), refer to 6C Fuel system.
14 Pull out release bar (2) of the fuel injector harness wiring connector (3).
15 Disconnect the fuel injector harness wiring connector from the fuel injector wiring harness (4).

Figure 6A1 – 321
16 To disconnect the throttle body connector (1) the following procedure must be followed.
17 Retract the throttle body wiring connector lock (3) while pressing the connector latch in the direction of
the arrow (4).
18 Disconnect the throttle body wiring connector (1).
19 Release the throttle body connector wiring harness from its retaining clip (5).

Take care not to break the barbed retainer
pin (6), when removing the harness. Should
the pin be damaged it is vital that a new
harness retainer be fitted.
20 Remove the main wiring harness retainer pin (6) from the intake manifold by pushing from the front to the
rear using a suitable length of 5mm steel rod or an
allen key.

Figure 6A1 – 322
21 Disconnect the PCV fresh air tube (1) from the upper intake manifold mounting clip (2) and remove the
fixing bolt (3).

Figure 6A1 – 323

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Engine Mechanical – V6 Page 6A1–189

28 Remove the centre exhaust pipe (1), refer to 6F
Exhaust System - V6 - V6.

Figure 6A1 – 327
29 Disconnect the two post-catalytic converter oxygen sensor wiring harness connectors, 1 each bank.


Figure 6A1 – 328
30 Disconnect the two pre-catalytic converter oxygen sensor wiring harness connectors, 1 each bank.
31 Remove the front exhaust flange nuts, three each bank.
32 Remove the front left-hand exhaust pipe from the rubber mount.

33 Remove the front exhaust pipes from the vehicle, for further information, refer to 6F Exhaust System - V6.
Figure 6A1 – 329
34 Remove the transfer case from the vehicle (4W D Only), refer to 7D Transfer Case and Adaptor Housing.

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Engine Mechanical – V6 Page 6A1–192



44 Remove the left-hand side engine mount (1), (automatic transmission only).

Figure 6A1 – 336
45 Unclip the oil level sensor harness from the heat shield (1).
a Remove the heat shield retaining screw (2).
b Remove the lower starter motor attaching bolt (3).
c Remove the heat shield.
d Remove the upper starter motor retaining bolt (3).
46 Remove the starter motor from the engine block and lower the starter motor as far as possible to gain
access to the wiring harness connections.
47 Remove the starter motor, (automatic transmission only).
Figure 6A1 – 337
48 Reinstall the left-hand side engine mount (1), (automatic transmission only).
49 Remove the transmission assembly, refer to 7C1 Automatic – 4L60E – General Information.



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Engine Mechanical – V6 Page 6A1–195

57 Unclip and remove the generator wiring harness
connector (1), Remove battery connection attaching
nut (4), and remove the battery harness cable (2)
from the connection stud.

Figure 6A1 – 345
58 Remove the generator attaching bolts (1, 2, and 4) three places, then remove the generator (3) from the
mounting bracket.
Figure 6A1 – 346
59 Remove the idler pulley attaching bolt and remove the idler pulley (1).
60 Remove the generator bracket attaching bolts, five places, and remove the generator mounting bracket
(2).
Figure 6A1 – 347

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Engine Mechanical – V6 Page 6A1–197

65 Remove the engine mount attaching nuts (1), (two
places) on the chassis side of the left-hand and right-
hand engine mounts.

Figure 6A1 – 351
66 Slowly raise the engine using the engine hoist continue to lift and manoeuvre the engine assembly
clear of the engine compartment.
Figure 6A1 – 352
Disassemble
1 Remove the wiring harness connectors and ground connections from the engine and transmission assembly and carefully set the wiring harness to one side, refer to 8A Electrical Body & Chassis.
2 Remove the engine control module (ECM) and mounting bracket, refer to 6C1-3 Engine Management – V6 – Service Operations.
3 Mount the engine assembly on a suitable engine stand.
5 Drain the engine oil into a suitable, clean container.
6 Remove the following components: a Oil filter adaptor, refer to 3.3 Oil Filter Adaptor.
b Engine coolant inlet pipe, refer to 6B1 Engine Cooling – V6.
c Heater pipe assembly, refer to 6B1 Engine Cooling – V6.
d Thermostat assembly, refer to 6B1 Engine Cooling – V6.
e Exhaust manifold assemblies, refer to 3.11Exhaust Manifold Assembly.
f Engine coolant outlet pipe, refer to 6B1 Engine Cooling – V6.
g Crankshaft position sensor, refer to 6C1-3 Engine Management – V6 – Service Operations.
h Knock sensors, refer to 6C1-3 Engine Management – V6 – Service Operations.
i Engine mounts and brackets, refer to 3.23 Engine Mounts and Brackets.
j Flexplate assemblies, refer to 4.3 Flexplate Assembly.

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Engine Mechanical – V6 Page 6A1–292

6 Torque Wrench Specifications
ATTENTION
„
„„
„
Fasteners must be replaced after loosening.



Fasteners either have micro encapsulated sealant applied or incorporate a mechanical thread lock and
should only be re-used once. If in doubt, replacement is recommended.

Oil Pan Drain Plug ................................................................................ 25.0 Nm
Oil Filter Adaptor Attaching Bolt ................................................ 20.0 – 26.0 Nm
Oil Level Indicator Tube Attaching Bolt........................................ 8.0 – 12.0 Nm
Accessory Drive Belt Idler Pulley Attaching Bolt................................... 50.0 Nm
Accessory Drive Belt Tensioner Attaching Bolt .................................... 50.0 Nm
Power Steering Reservoir Bracket Attaching Screw.............................. 9.0 Nm
Power Steering Pump Bracket Attaching Bolt ........................... 49.0 – 67.0 Nm
Upper Intake Manifold to Lower Intake Manifold Attaching Bolt ........... 23.0 Nm
Upper Intake Manifold to Cylinder Head Attaching Bolt........................ 23.0 Nm
Lower Intake Manifold to Cylinder Head Attaching Bolt........................ 23.0 Nm
Fuel Injector Wiring Harness Bracket Attaching bolt .............................. 9.0 Nm
Exhaust Manifold to Cylinder Head Attaching Bolt ..................... 17.0 - 23.0 Nm
Exhaust Manifold Heat Shield Attaching Bolt ............................... 8.0 - 12.0 Nm
Battery Harness Ground Terminal Attaching Nut ................................. 13.0 Nm
Camshaft Cover Attaching Bolt ................................................... 8.0 – 12.0 Nm
Engine Ground Connector Bolt............................................................. 10.0 Nm
Engine Wiring Harness Former Attaching Bolt .......................... 12.0 – 16.0 Nm
„ Crankshaft Balancer Assembly Attaching Bolt:
Stage 1 ..................................................................................... 90.0 –110.0 Nm
Stage 2 ....................................................................................................... 150 °
Engine Front Cover Assembly Attaching Bolt ............................ 20.0 – 26.0 Nm
Camshaft Intermediate Driveshaft Sprocket Attaching Bolt ....... 58.0 – 72.0 Nm
Secondary Timing Chain Guide Attaching Bolt.......................... 20.0 – 26.0 Nm
Secondary Timing Chain Shoe Attaching Bolt ........................... 20.0 – 26.0 Nm
Secondary Timing Chain Tensioner Attaching Bolt ................... 20.0 – 26.0 Nm
Primary Timing Chain Upper Guide Attaching Bolt.................... 20.0 – 26.0 Nm
Primary Timing Chain Tensioner Attaching Bolt ........................ 20.0 – 26.0 Nm
Oil Pump Assembly Attaching Bolt ............................................ 20.0 – 26.0 Nm
Camshaft Sprocket Attaching Bolt ............................................. 49.0 – 67.0 Nm
Exhaust Camshaft Sprocket Attaching Bolt ............................... 49.0 – 67.0 Nm
Camshaft Bearing Cap Attaching Bolt ......................................... 8.0 – 12.0 Nm
Cylinder Head Threaded Plug .............................................................. 31.0 Nm
„ Cylinder Head M11 Attaching Bolt:
Stage 1 ...................................................................................... 40.0 – 50.0 Nm
Stage 2 ....................................................................................................... 120 °
„ Cylinder Head M8 Attaching Bolt:
Stage 1 ...................................................................................... 12.0 – 18.0 Nm
Stage 2 ......................................................................................................... 60 °
Engine Mount Bracket to Cylinder Block Attaching Bolt ............ 43.0 – 57.0 Nm
Engine Mount to Bracket Attaching Nut ..................................... 70.0 – 90.0 Nm
Engine Mount to Frame Attaching Nut....................................... 44.0 – 60.0 Nm
Engine Lift Bracket Attaching Bolt .......................................... 58.0 – 72.0.0 Nm
Knock Sensor Attaching Nut................................................................. 23.0 Nm

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