lock ISUZU KB P190 2007 Workshop Repair Manual

Engine Management – V6 – Service Operations Page 6C1-3–15

Test

To prevent component and damage use
connector test adaptor kit J 35616-A.
Resistance Check

1 Connect a digital ohmmeter using connector test adaptor kit J 35616-A to the crankshaft position (CKP)
sensor.
2 Measure the resistance across terminals 1 and 2.
3 Compare the reading against the specification.
CKP sensor resistance @ 20°C ................ 850 – 1040 Ω
4 If the resistance is not within specification, replace the
CKP sensor.
Figure 6C1-3 – 11
Reinstall
Reinstallation of the crankshaft position (CKP) sensor is the reverse of the removal procedure, noting the following:
1 Lubricate the CKP sensor O-ring with clean engine oil.
2 Reinstall the CKP sensor by pushing down on the sensor to engage the sensor O-ring in the engine block.

Ensure the CKP sensor is fully seated before
tightening the attaching bolt to the specified
torque.
3 Reinstall the CKP sensor bolt and tighten to the correct torque specification. Crankshaft position sensor attaching bolt
torque specification ...................................8.0 – 12.0 Nm
4 Road test the vehicle and check for correct operation, taking particular note there is no engine oil leak from the CKP sensor.

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Engine Management – V6 – Service Operations Page 6C1-3–19

Remove

If replacing the ECM, it must be reset prior to
removal. Failure to perform this procedure
will result in the inability to test the ECM for
warranty purposes, refer to ECM Reset in this
Section.
1 Turn the ignition switch off.
2 Disconnect the battery.
3 Disconnect the engine harness connector (1) and the front body harness connector (2) from the ECM (3). To release each connector, lift the connector locking lever (4) whilst simultaneously pushing the connector locking
slide (5), refer to Figure 6C1-3 – 15.

Figure 6C1-3 – 15
4 Remove the screw (1) attaching the ground terminal (2) to the ECM (3).
5 Remove the bolt (4), four places, attaching the ECM to the mounting bracket (5) and remove the ECM.
Figure 6C1-3 – 16

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Engine Management – V6 – Service Operations Page 6C1-3–20

Reinstall
Reinstallation of the engine control module (ECM) is the reverse of the removal procedure, noting the following:
NOTE
During installation of the ECM, the
SICHTMUSTER ME 9.6 label (1) is positioned at
the top right-hand corner.
1 Reinstall ECM attaching bolts and tighten to the correct torque specification.
Engine control module attaching bolt
torque specification ...................................8.0 – 12.0 Nm
2 Reinstall the ground terminal screw and tighten to the correct torque specification.
Ground terminal attaching screw
torque specification ..............................................4.5 Nm
Figure 6C1-3 – 17
3 Reinstall the main vehicle wiring harness connector, and engine wiring harness connector, ensuring the connector locking lever is fully seated, refer to Figure 6C1-3 – 15.
4 If the ECM has been replaced, perform the following procedures:
• ECM service programming, 6E1 Powertrain Interface Module – V6.
• ECM / PIM / ICU security link, refer to 6E1 Powertrain Interface Module – V6.
• Main diagnostic table functional check, refer to 6C1-2 Engine Management – V6 – Diagnostics.
5 If the ECM has been removed, but not replaced, perform the main diagnostic table functional check, refer to 6C1-2 Engine Management – V6 – Diagnostics.
6 Start the vehicle and allow to idle.
ECM Reset

Do not perform the reset procedure within
sixty seconds of turning the ignition on.
Failure to comply may result in the ECM
failing to reset.
W hen an ECM is installed onto a vehicle, it is security linked to the Immobiliser Control Unit (ICU) and powertrain
interface module (PIM). Once this linking has been performed, the ECM cannot be installed in any other vehicle unless
the security linking between the ICU and the PIM has been reset using the following procedure.
NOTE
Prior to resetting the ECM, obtain the Security
Code. This information is found on the vehicle
security card issued with the vehicle when new.
For further information on the vehicle security
card, refer to 6E1 Powertrain Interface Module –
V6.
1 Connect Tech 2 to the data link connector (DLC) and turn the ignition on.
2 On Tech 2 select Engine / V6 Engine / Programming / Reset ECU .

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Engine Management – V6 – Service Operations Page 6C1-3–25

Locking Lever Type
1 Rotate the quick connect locking lever (1) in the
direction of the arrow.
2 W hilst holding the lever against its stop (2), pull the hose away from the EVAP canister purge valve.
Figure 6C1-3 – 23
Latch Type
1 Push the quick connect fitting (1) in the direction of
arrow.
2 W hilst pressing the two latches (2) in the direction of the arrows, pull the quick connect fitting (3) away from
the EVAP canister purge valve.
Figure 6C1-3 – 24
Connect
1 Lubricate the evaporative emission (EVAP) canister purge valve with clean engine oil.
Figure 6C1-3 – 25

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Engine Management – V6 – Service Operations Page 6C1-3–26

2 Push the hose quick connect fitting onto the purge
valve fitting. There will be an audible click as the quick
connect fitting engages.
3 Check the locking lever has returned to its rest position.
4 Check the quick connect fittings have fully engaged by gently pulling the quick connect fitting away from the
purge valve.
Figure 6C1-3 – 26
2.12 Evaporative Emission Canister Purge
Valve
Remove
1 Turn the ignition switch off.
2 Disconnect the wiring harness connector (1) from the evaporative emission (EVAP) canister purge valve (2).
3 Disconnect the two EVAP canister purge valve hoses (3 and 4), refer to 2.11 Evaporative Emission
(EVAP) Canister Purge Valve Quick Connect Fittings.
Figure 6C1-3 – 27
4 Slide the EVAP canister purge valve (1) from the purge valve mounting bracket (2).
5 If required, test the EVAP canister purge valve, refer to the Test in this Section.
Figure 6C1-3 – 28

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Engine Management – V6 – Service Operations Page 6C1-3–30

Disassemble
Fuel Injector
Remove
For each fuel injector:
1 Slide the fuel injector wiring connector locking tab (1) upwards in the direction of the arrow.
2 Disconnect the connector from the fuel injector.
Figure 6C1-3 – 34
3 Using a flat blade screwdriver, remove the fuel injector retaining clip (1) from the fuel injector (2). Discard the
retaining clip.

Figure 6C1-3 – 35

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Engine Management – V6 – Service Operations Page 6C1-3–32

Fuel Injector Wiring Harness Assembly
Remove
1 For each fuel injector wiring harness connector, slide
the locking tab (1) upwards in the direction of the
arrow and disconnect the connector from the fuel
injector.
Figure 6C1-3 – 38
2 Unclip the fuel injector harness assembly (1), three places, from the fuel rail.
Figure 6C1-3 – 39
3 Using a flat blade screwdriver, prise the fuel injector harness upper tray retainer (1), eight places, from the
lower tray locking tang (2).
4 Remove the fuel injector harness from the lower tray.
Figure 6C1-3 – 40

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Engine Management – V6 – Service Operations Page 6C1-3–34

• If the HO2S has been removed, but not replaced, anti-seize compound must be applied to the threads prior to
installation. New HO2S will already have the anti-seize compound applied.
• For vehicles with the six wire HO2S sensor, under no
circumstances should the protective cover (1) be
removed, or the gortex filter (2) be covered and / or
sealed.
Figure 6C1-3 – 42
Six Wire Sensor
The replacement procedure for Bank 1 and Bank 2 six wire heated oxygen sensor (HO2S) are typically the same, with
the following procedure being specific to Bank 1.
Remove
1 Turn the ignition switch off.
2 Unclip the HO2S wiring harness connector assembly (1) from the ignition coil wiring harness tray, refer to Figure 6C1-3 – 43. View A refers to Bank 1, and View B refers to Bank 2.
3 Slide the connector locking tang (2) away from the harness connector.
4 Separate the harness connector (3).

Figure 6C1-3 – 43
5 Raise the front of the vehicle and support on safety stands. Refer to 0A General Information for location of the jacking points.

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Engine Management – V6 – Service Operations Page 6C1-3–43

6 Remove the bolt (1) attaching the knock sensor (2) to
the engine block and remove the knock sensor.
Figure 6C1-3 – 57
Reinstall
Reinstallation of the knock sensor is the reverse of the removal procedure, noting the following:
1 Ensure the knock sensor mounting surface is flat and free of any dirt, oxidisation, etc.

Ensure the knock sensor is fully seated and
correctly aligned before tightening the
attaching bolt.
Do not over-tighten the attaching bolt as
incorrect operation of the knock sensor may
result.
2 Reinstall the knock sensor and bolt (1). Align the knock sensor so that it is parallel to the engine oil pan
mounting surface (2), ± 3° (3).
3 Tighten the knock sensor bolt to the correct torque specification.
Knock sensor attaching bolt
torque specification .................................21.0 – 25.0 Nm
4 Road test the vehicle and check for correct operation, taking particular note that no exhaust leaks are
evident.
Figure 6C1-3 – 58
2.19 Knock Sensor, Bank 1 (RHS)
Remove

1 Turn the ignition switch off.
2 Raise the front of the vehicle and support on safety stands, refer to 0A General Information for location of the jacking points.

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Engine Management – V6 – Service Operations Page 6C1-3–44

3 Disconnect the wiring harness connector (1) from the
knock sensor (2).
Figure 6C1-3 – 59

4 Remove the bolt (1) attaching the knock sensor (2) to the engine block, and remove the knock sensor.
Figure 6C1-3 – 60
Reinstall
Reinstallation of the knock sensor is the reverse of the removal procedure, noting the following:
1 Ensure the knock sensor mounting surface is flat and free of any dirt, oxidisation, etc.

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