2007 ISUZU KB P190 Workshop Repair Manual

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Page 3745 of 6020

ISUZU KB P190 2007 Workshop Repair Manual Powertrain Interface Module – V6 Page 6E1–84

Tech 2 PIM Security Information Data List
The Tech 2 PIM Security Information Data List displays the PIMs current security status.
To view the d

Page 3746 of 6020

ISUZU KB P190 2007 Workshop Repair Manual Powertrain Interface Module – V6 Page 6E1–85

14 Specifications
Powertrain Interface Module Bus Cut-off Resistor.................................... 120 Ω
Engine Control Module Bus Cut-off R

Page 3747 of 6020

ISUZU KB P190 2007 Workshop Repair Manual Powertrain Interface Module – V6 Page 6E1–86

15 Torque Wrench Specifications
Powertrain Interface Module Attaching Screw ............................. 8.0 – 12.0 Nm
Vertical Acceleration

Page 3748 of 6020

ISUZU KB P190 2007 Workshop Repair Manual Powertrain Interface Module – V6 Page 6E1–87

16 Special Tools
Tool Number Illustration Description Tool Classification
3588
Digital Multimeter
Previously released as J39200 or
equivale

Page 3749 of 6020

ISUZU KB P190 2007 Workshop Repair Manual Exhaust System – V6 Page 6F – 1

6F
Exhaust System – V6
ATTENTION
Before performing any service operations or other procedure described in this Section, refer to
1.3 WARNING, CAUTION an

Exhaust System – V6 Page 6F – 1

6F
Exhaust System – V6
ATTENTION
Before performing any service operations or other procedure described in this Section, refer to
1.3 WARNING, CAUTION and NOTES for correct workshop practices with regard to safety and / or
property damage.
1 General Information ............................................................................................................ ...................2
1.1 Emission Reductions ............................................................................................................................................ 2
Euro 3 Emissions Standards ................................................................................................................................ 3
1.2 General Description ............................................................................................................ ................................... 4
Service Notes ......................................................................................................................................................... 5
1.3 WARNING, CAUTION and NOTES..................................................................................................... .................... 5
1.1 Definition of WARNING, CAUTION and NOTE Statements......................................................................... .. 5
W ARNING defined ............................................................................................................................................. 5
CAUTION defined .............................................................................................................................................. 5
NOTE defined .................................................................................................................................................... 6
2 Front and Centre Exhaust Pipe .................................................................................................. ...........7
Removal .................................................................................................................................................................. 7
Reinstallation ......................................................................................................................................................... 8
3 Silencer and Rear Exhaust Pipe............................................................................................................9
Removal .................................................................................................................................................................. 9
Reinstallation ......................................................................................................................................................... 9
4 Torque Wrench Specifications............................................................................................................10
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ISUZU KB P190 2007

Page 3750 of 6020

ISUZU KB P190 2007 Workshop Repair Manual Exhaust System – V6 Page 6F – 2

1 General Information
Information contained within this section describes the general exhaust system.
1.1 Emission Reductions
Through developments in various

Exhaust System – V6 Page 6F – 2

1 General Information
Information contained within this section describes the general exhaust system.
1.1 Emission Reductions
Through developments in various vehicle emissions reduction systems, significant reductions in emissions have been
achieved. The developments have been primarily concerned with refinements in engine calibration and the optimisation
of exhaust system catalytic converter configurations.
The catalytic converter is similar to a muffler in appearance
however, within the outer stainless steel shell (4), there is a
ceramic monolith (1) which is honeycombed in the direction
of exhaust flow, as shown. The ceramic monolith is
surrounded by a mat (2), which has the primary function of
holding the monolith firmly in place to prevent any contact
with the inner shell (3). A mesh seal (5 and 6) at each end
of the converter prevents exhaust gases from fouling and
eroding the mat.
Surfaces of the ceramic monolith that are exposed to
exhaust gases are coated with a catalytic material. This
material contains rhodium and platinum, which act to
facilitate the chemical reactions necessary to oxidise carbon
monoxide and hydrocarbons into harmless carbon dioxide.
Figure 6F– 1
The catalytic converter is a substance that accelerates a chemical reaction without itself being changed. Engine exhaust
gases contain carbon monoxide (CO), hydrocarbons (HC) and oxides of nitrogen (NO
x). W hen the exhaust gases flow
through the monolith, reactions with the catalytic converter occur. CO and HC are converted by oxidation with oxygen
(O
2) in the exhaust gases to produce carbon dioxide (CO2) and water vapour (H2O). NOx is converted by reduction with
CO to produce nitrogen (N
2) and CO2. The converter is called a three-way type because it simultaneously converts three
components of exhaust gas (CO, HC and NO
x) to harmless natural gases, refer to Figure 6F– 2

Figure 6F– 2

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ISUZU KB P190 2007

Page 3751 of 6020

ISUZU KB P190 2007 Workshop Repair Manual Exhaust System – V6 Page 6F – 3

The Catalytic converter can be damaged or
rendered ineffective, if:
• operated outside the limits of the closed
loop mixture control system
• the

Exhaust System – V6 Page 6F – 3

The Catalytic converter can be damaged or
rendered ineffective, if:
• operated outside the limits of the closed
loop mixture control system
• the engine burns excessive amount of oil
• the exhaust temperature at the converter
is too high (exceeds 840°C).
The catalytic material is very sensitive to the effects of a rich or lean fuel mixture, which may cause the temperature of
the converter to rise rapidly. The catalytic converter normally operates at approximately 600 °C.
The catalytic converter is also sensitive to the use of leaded petrol. Using leaded fuel can cause deposits to form in the
converter, which restrict exhaust flow and prevent the catalyst from working. This will result in an increase in exhaust
backpressure and converter temperature.
NOTE
The use of unleaded petrol results in black
tailpipe deposits rather than the grey colour that
some people may normally associate with an
acceptable combustion condition. This black
colour resulting from the use of unleaded fuel
does not necessarily indicate a state of poor
engine tune. For V6 engines, Refer to: 6C1 – 1
Engine Management General Information.
Euro 3 Emissions Standards
The Euro 3 emissions standard is a European standard which aims at setting vehicle emissions targets to encourage
vehicle manufacturers to reduce harmful vehicle emissions such as Carbon Monoxide (CO), Hydrocarbons (HC) and the
various oxides of Nitrogen (NOx).

This vehicle is fitted with a supplemental
restraint system (SRS). Refer to section 9A
Restraints, in order to determine whether you
are performing service on or near the SRS
components or the SRS wiring.

Always use the correct fastener in the proper
location. When you replace a fastener, use
ONLY the exact part number for that
application. Isuzu will identify those fasteners
that require a replacement after removal and
fasteners that require thread lockers or thread
sealant. Unless otherwise specified, do not
use supplemental coatings (Paints, greases
or corrosion inhibitors) on thread fasteners or
fastener joints. Generally such coatings
adversely effect the fastener torque and the
joint clamping force, and may damage the
fastener. When you install fasteners, use the
correct tightening sequence and torque
specifications.

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ISUZU KB P190 2007

Page 3752 of 6020

ISUZU KB P190 2007 Workshop Repair Manual Exhaust System – V6 Page 6F – 4

Figure 6F– 3
Legend
1 Front Exhaust Pipe LH side
2 Front Exhaust Pipe RH side
3 Three Way Catalytic Converter 4 Centre Exhaust Pipe
5 Exhaust Si

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