2007 ISUZU KB P190 Workshop Repair Manual

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Page 3577 of 6020

ISUZU KB P190 2007 Workshop Repair Manual Engine Management – V6 – Service Operations Page 6C1-3–53

Reinstall
Reinstallation of the spark plug is the reverse of the removal procedure, noting the following:

• Discard the spark

Page 3578 of 6020

ISUZU KB P190 2007 Workshop Repair Manual Engine Management – V6 – Service Operations Page 6C1-3–54

2 Loosen the air intake duct to throttle body assembly
retaining clamp (1).
3 Pull the air intake duct (2) away from the throttle

Page 3579 of 6020

ISUZU KB P190 2007 Workshop Repair Manual Engine Management – V6 – Service Operations Page 6C1-3–55

Inspect
The following throttle body inspection procedure may be carried out with the throttle body installed on the vehicle. Prior t

Engine Management – V6 – Service Operations Page 6C1-3–55

Inspect
The following throttle body inspection procedure may be carried out with the throttle body installed on the vehicle. Prior to
performing a throttle body on-vehicle inspection:
• Turn the ignition switch off.
• Disconnect the throttle body wiring harness connector. Refer to Remove in this Section.
• Remove the air intake duct, refer to 2.16 Intake Air Duct Assembly.

To avoid serious personal injury, never
attempt to rotate the throttle plate manually
whilst the throttle body harness connector is
connected to the throttle body.
1 Fully open the throttle plate by hand and inspect the throttle body bore and throttle plate for any deposits.

When cleaning / inspecting the throttle body:
• Do not subject the throttle body assembly
to an immersion cleaner or a strong
solvent. Damage to the throttle position
sensor and / or sealed throttle shaft
bearings will result.
• Never use a wire brush or scraper to clean
the throttle body. A wire brush or sharp
tool may damage the throttle body
components.
2 Use a clean shop towel and a spray type hydro-carbon cleaner to clean the throttle body bore and throttle plate. If necessary, use a parts cleaning brush to remove heavy deposits.
3 Inspect the throttle body for a binding throttle plate by fully opening and closing the throttle plate by hand. It should open and close smoothly.
4 Inspect the throttle body for a bent or damaged throttle plate, cracks, corrosion, or distortion in the throttle body housing.
NOTE
The throttle body contains no serviceable parts
and should not be disassembled. If the throttle
body is damaged it must be replaced as an
assembly.
5 If the throttle body is affected by any of the above conditions, it must be replaced.
6 If an on-vehicle throttle body inspection was performed, perform the following:
• Reinstall the air intake duct, refer to 2.16 Intake Air Duct Assembly.
• Reconnect the throttle body wiring harness connector, refer to Reinstall in this Section.
• Road test the vehicle and check for correct operation, taking particular note that no air leaks are evident.
Reinstall
Reinstallation of the throttle body assembly is the reverse of the removal procedure, noting the following:
1 Ensure the throttle body and upper intake manifold mating surfaces are clean and free of foreign material.
2 Install a new throttle body to upper intake manifold gasket.

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ISUZU KB P190 2007

Page 3580 of 6020

ISUZU KB P190 2007 Workshop Repair Manual Engine Management – V6 – Service Operations Page 6C1-3–56

3 Reinstall the throttle body bolts and tighten to the correct torque specification.
Throttle body assembly attaching bolt
torque

Page 3581 of 6020

ISUZU KB P190 2007 Workshop Repair Manual Engine Management – V6 – Service Operations Page 6C1-3–57

3 Specifications
Accelerator Pedal Position Sensor 1
Type .....................................................Three wire potent

Page 3582 of 6020

ISUZU KB P190 2007 Workshop Repair Manual Engine Management – V6 – Service Operations Page 6C1-3–58

Engine Oil Level and Temperature Sensor
Level sensor type ....................................... Magnetic reed switch
Tempera

Engine Management – V6 – Service Operations Page 6C1-3–58

Engine Oil Level and Temperature Sensor
Level sensor type ....................................... Magnetic reed switch
Temperature sensor type .......................... Negative temperature
................................................................... coefficient thermistor

Engine Oil Temperature Vs Resistance
Temperature °C Resistance – Ohms ( Ω)
0 7570 – 8000
20 2351 – 2649
30 2225 – 2375
40 1118 – 1231
50 1050 – 1150
80 380 – 470
100 270 – 290

Evaporative Emission (EVAP) Canister Purge Valve
Type .............................................................................. Solenoid
Resistance @ 20°C...................................................... 24 – 28 Ω
Operating voltage................................................... 12.0 – 16.0 V
Engine Firing Order ..................................................................... 1, 2, 3, 4, 5, 6
Fuel Injector
Type .............................................................................. Solenoid
Fuel Injector Resistance @ 20°C ........................... 11.4 – 12.6 Ω
Heated Oxygen Sensor (HO2S) – Four wire
Type ...................................................... Four wire, planar sensor
Operating range (greater than 360°C) .................. 10 – 1000 mV
Closed loop operating range ................................. 300 – 600 mV
Heater resistance @ 20°C ....................................... 8.0 – 10.0 Ω
Heated Oxygen Sensor (HO2S) – Six W ire
Type ....................................... Six wire, wide band planar sensor
Heater resistance @ 20°C ....................................... 8.0 – 10.0 Ω
Intake Air Temperature (IAT) Sensor
Type .......................................................... Negative temperature
.................................................................. Coefficient thermistor
Intake Air Temperature Vs Resistance
Temperature °C Resistance – Ohms ( Ω)
-40 35140 – 43760
-20 12660 – 15120
-10 7943 – 9307
0 5119 – 5892
20 2290 – 2551
25 1900 –2100
40 1096 –1238
60 565 – 654
80 312 – 370
100 184 – 222
120 114 –141

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ISUZU KB P190 2007

Page 3583 of 6020

ISUZU KB P190 2007 Workshop Repair Manual Engine Management – V6 – Service Operations Page 6C1-3–59

Intake Air Temperature Vs Resistance
Temperature °C Resistance – Ohms (Ω)
140 74 –93
Knock Sensor
Type ...............

Page 3584 of 6020

ISUZU KB P190 2007 Workshop Repair Manual Engine Management – V6 – Service Operations Page 6C1-3–60

4 Assembly Lubricants
Camshaft Position (CMP) Sensor O-ring ........................................... Engine Oil
Crankshaft Posi

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