sensor ISUZU KB P190 2007 Workshop Repair Manual

Engine Mechanical – V6 Page 6A1–85
Page 6A1–85
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
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

BACK TO CHAPTER INDEX
TO MODEL INDEX
ISUZU KB P190 2007

Engine Mechanical – V6 Page 6A1–87
Page 6A1–87

When the intake manifold is removed, plug
each of the cylinder head intake openings
with lint free cloth, to stop the entry of foreign
material into the intake ports.
21 Remove the upper and lower intake manifold assembly from the engine.
22 Remove lower intake mani fold to cylinder head gasket.
Disassemble
1 Disconnect the EVAP hose (1) from the upper intake
manifold (2).
2 Remove the bolts (3) (70 mm long) attaching the upper intake manifold to the lower intake manifold (4).
NOTE
These bolts are located at the front left and rear
right of the upper intake manifold, as shown.
3 Remove the upper intake manifold from the lower intake manifold.
4 Remove and discard the upper to lower intake manifold gaskets.

Do not reuse the upper to lower intake
manifold gaskets (5).
5 Remove the EVAP hose from the retaining clip (6) attached to the lower intake manifold.
6 Remove the following from the upper intake manifold, refer to Section 6C1-3 Engine Management – V6 –
Service Operations :
• BARO Sensor and
• Throttle Body assembly


Figure 6A1 – 52
7 Remove the fuel rail and in jector assembly. Refer to
Section 6C1-3 Engine Management – V6 – Service
Operations .

The following precautions must be followed
when removing the fuel rail and injector
assembly:
• Care must be taken when removing the
fuel rail and injector assembly to
prevent damage to the injector spray
tips and injector harness connector
terminals.
• Support the fuel rail and injector
assembly after removal.
• Plug all fuel line and manifold openings
after removal to prevent dirt and other
contaminants from entering the fuel
system.


Figure 6A1 – 53

BACK TO CHAPTER INDEX
TO MODEL INDEX
ISUZU KB P190 2007

Engine Mechanical – V6 Page 6A1–91
Page 6A1–91
3.11 Exhaust Manifold Assembly
Remove

Allow the engine to cool before commencing.

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 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 Section 0A General Information .
7 Working from under the vehicle, remove the two exhaust manifold to exhaust pipe flange nuts, refer to
Section 6F Exhaust System - 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

BACK TO CHAPTER INDEX
TO MODEL INDEX
ISUZU KB P190 2007

Engine Mechanical – V6 Page 6A1–94
Page 6A1–94
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 Section 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 v ent 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

BACK TO CHAPTER INDEX
TO MODEL INDEX
ISUZU KB P190 2007

Engine Mechanical – V6 Page 6A1–95
Page 6A1–95
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 Section 6C1-3 Engine Management – V6 – Service
Operations .
13 Move the engine wiring harness clear of the camshaft cover.



Figure 6A1 – 65

BACK TO CHAPTER INDEX
TO MODEL INDEX
ISUZU KB P190 2007

Engine Mechanical – V6 Page 6A1–104
Page 6A1–104
3.15 Front Cover Assembly
Remove
1 Drain the engine coolant, refer to Section 6B1 Engine Cooling.
2 Remove the water outlet pipe and coolant pump assembly, refer to Section 6B1 Engine Cooling:
3 Remove the camsha ft covers, refer to 3.12 Camshaft Cover .
4 Remove the crankshaft bal ancer assembly, refer to 3.13 Crankshaft Balancer Assembly .
5 Disconnect the purge vent hose from the water outlet pipe.
NOTE
Do not disconnect the power steering pipes or
drain the power steering fluid.
6 Remove the power steering pump reservoir mounting bracket, refer to 3.8 Power Steering Pump Bracket.
7 Remove the camshaft position sensor, refer to Section 6C1-3 Engine Management – V6 – Service Operations.
NOTE
Do not disconnect the A/C compressor pipes.

8 Remove the bolt (2), 22 places, attaching the front cover assembly (1).

CAUTION
Only use the prise points and a bolt in the
jackscrew hole to remove the engine front
cover.

9 Loosely install a 10 x 1.5 mm bolt in the jackscrew hole (1).

10 Using the prise points (2) located at the edge of the
front cover and the jackscrew, shear the RTV sealant.
Figure 6A1 – 83






Figure 6A1 – 84

BACK TO CHAPTER INDEX
TO MODEL INDEX
ISUZU KB P190 2007

Engine Mechanical – V6 Page 6A1–186
Page 6A1–186
3.18 Camshaft Sprocket – Excluding MY06
Update
CAUTION
Setting the camshaft timing is required
whenever the camshaft drive system is
disturbed to ensure the relationship between
any chain and sprocket is not lost. Even when
only one sprocket is involved, multiple
crankshaft rotations will not produce
conditions where correct timing can be
confirmed.
If required, follow the Left-hand Secondary
Camshaft Chain Components reinstallation
procedure to reset the camshaft timing.
Remove
Right-hand Side
1 Remove the right-hand ca mshaft cover, refer to 3.12 Camshaft Cover.
2 Remove the camshaft position sensors, refer to Section 6C1-3 Engine Management – Service Operations.
3 Remove the camshaft position actuator solenoids, refer to Section 6C1-3 Engine Management – V6 – Service
Operations .
4 Remove the crankshaft bal ancer assembly, refer to 3.13 Crankshaft Balancer Assembly .
5 Install the crankshaft rotation socket Tool No. EN-46111 onto the crankshaft.
6 Rotate the crankshaft until the camshafts are in a neutral low tension position. The camshaft flats will be
parallel with the camshaft cover rail (1).

Figure 6A1 – 298

BACK TO CHAPTER INDEX
TO MODEL INDEX
ISUZU KB P190 2007

Engine Mechanical – V6 Page 6A1–189
Page 6A1–189
Left-hand Side
1 Remove the left-hand camshaft cover, refer to 3.12 Camshaft Cover .
2 Remove the camshaft position sensors, refer to Section 6C1-3 Engine Management – V6 – Service Operations.
3 Remove the camshaft position actuator solenoids, refer to Section 6C1-3 Engine Management – V6 – Service
Operations .
4 Remove the crankshaft bal ancer assembly, refer to 3.13 Crankshaft Balancer Assembly .
5 Install the crankshaft rotation socket Tool No. EN-46111 onto the crankshaft.
6 Rotate the crankshaft until the camshafts are in a neutral low tension position. The camshaft flats will be
parallel with the camshaft cover rail (1).


Figure 6A1 – 304
7 Install Tool No. EN-46105 – 1 (1) onto the rear of the
left-hand cylinder head camshafts (2).


Figure 6A1 – 305

BACK TO CHAPTER INDEX
TO MODEL INDEX
ISUZU KB P190 2007

Engine Mechanical – V6 Page 6A1–193
Page 6A1–193
3.19 Camshaft Sprocket – MY06 Update
CAUTION
Setting the camshaft timing is required
whenever the camshaft drive system is
disturbed to ensure the relationship between
any chain and sprocket is not lost. Even when
only one sprocket is involved, multiple
crankshaft rotations will not produce
conditions where correct timing can be
confirmed.
If required, follow the Left-hand Secondary
Camshaft Chain Components reinstallation
procedure to reset the camshaft timing.
Remove
Right-hand Side
1 Remove the right-hand camshaft cover, refer to 3.12 Camshaft Cover.
2 Remove the camshaft position sensors, refer to Section 6C1-3 Engine Management – Service Operations.
3 Remove the camshaft position actuator solenoids, refer to Section 6C1-3 Engine Management – V6 – Service
Operations .
4 Remove the crankshaft bal ancer assembly, refer to 3.13 Crankshaft Balancer Assembly .
5 Install the crankshaft rotation socket Tool No. EN-46111 onto the crankshaft.
6 Rotate the crankshaft until the camshafts are in a neutral low tension position. The camshaft flats will be
parallel with the camshaft cover rail (1).

Figure 6A1 – 312

BACK TO CHAPTER INDEX
TO MODEL INDEX
ISUZU KB P190 2007

Engine Mechanical – V6 Page 6A1–196
Page 6A1–196
19 Remove the bolt (1) attaching right-hand intake
camshaft sprocket (2) and remove the sprocket.

Figure 6A1 – 318
Left-hand Side
1 Remove the left-hand cams haft cover, refer to 3.12 Camshaft Cover .
2 Remove the camshaft position sensors, refer to Section 6C1-3 Engine Management – V6 – Service Operations.
3 Remove the camshaft position actuator solenoids, refer to Section 6C1-3 Engine Management – V6 – Service
Operations .
4 Remove the crankshaft bal ancer assembly, refer to 3.13 Crankshaft Balancer Assembly .
5 Install the crankshaft rotation socket Tool No. EN-46111 onto the crankshaft.
6 Rotate the crankshaft until the camshafts are in a neutral low tension position. The camshaft flats will be
parallel with the camshaft cover rail (1).


Figure 6A1 – 319

BACK TO CHAPTER INDEX
TO MODEL INDEX
ISUZU KB P190 2007