Mitsubishi Montero Sport (2004+). Manual — part 371
ON-VEHICLE SERVICE
TSB Revision
MULTIPORT FUEL INJECTION (MFI)
13A-897
INJECTOR CHECK
M1131005200491
Measurement of Resistance between Terminals
1. Disconnect the injector intermediate connector.
2. Measure the resistor between the injector intermediate male
side connector terminals.
Standard value:
3. Connect the injector intermediate connector.
IDLE AIR CONTROL MOTOR CHECK
M1131005400569
Required Special Tool:
• MB991709: Test Harness Set
.
<Checking the Operation Sound>
1. Check that the engine coolant temperature is 20
°C (68°F) or
below.
NOTE: If necessary, you can disconnect the engine coolant
temperature sensor connector and connect the harness-side
of the connector to another engine coolant temperature sen-
sor that is at 20
°
C (68
°
F) or below.
2. Check that the operation sound of the stepper motor can be
heard after the ignition is switched ON (but do not start the
engine).
3. If the operation sound cannot be heard, check the stepper
motor's activation circuit. If the circuit is normal, it is
probable that there is a malfunction of the stepper motor or
powertrain control module.
.
AK000346AB
INJECTOR INTERMEDIATE
HARNESS CONNECTOR
INJECTOR NO.
MEASUREMENT
TERMINAL
RESISTANCE
NO.1
8
− 3
13
− 16 ohms
[20
°C (68°F)]
NO.2
8
− 2
NO.3
8
− 1
NO.4
8
− 7
NO.5
8
− 6
NO.6
8
− 5
AKX01494
INJECTOR INTERMEDIATE
MALE SIDE CONNECTOR
1 2 3 4
5 6 7 8
AB
ON-VEHICLE SERVICE
TSB Revision
MULTIPORT FUEL INJECTION (MFI)
13A-898
<Checking the Coil Resistance>
1. Disconnect the idle air control motor connector.
2. Measure resistance between terminal No. 2 and either
terminal No. 1 or terminal No. 3 of the connector at the idle
air control motor side.
Standard value: 28
− 33 ohms [at 20°C (68°F)]
3. Measure the resistance between terminal No. 5 and either
terminal No. 4 or terminal No. 6 of the connector at the idle
air control motor side.
Standard value: 28
− 33 ohms [at 20°C (68°F)]
4. If resistance is not within the standard value, replace the IAC
motor.
.
<Operation Check>
1. Remove the throttle body.
2. Remove the idle air control motor.
3. Connect special tool MB991709 to the idle air control motor
connector.
4. Connect the positive terminal of a power supply
(approximately 6 volts) to terminal No. 2 and the terminal
No. 5.
5. Connect the negative terminal of the power supply to each
clip as described in the following steps. Then check whether
or not the stepper motor vibrates slightly as it operates.
(1) Connect the negative terminal of the power supply to
terminal No. 1 and terminal No. 4.
(2) Connect the negative terminal of the power supply to
terminal No. 3 and terminal No. 4.
(3) Connect the negative terminal of the power supply to
terminal No. 3 and terminal No. 6.
(4) Connect the negative terminal of the power supply to
terminal No. 1 and terminal No. 6.
(5) Connect the negative terminal of the power supply to
terminal No. 1 and terminal No. 4.
(6) Repeat the tests in sequence from (5) to (1) to test
opposite movement of the IAC.
AKX01561
1 2 3
4 5 6
1 2 3
4 5 6
AB
AKX01627AB
TERMINAL 2
IAC MOTOR
TERMINAL 5
MB991709
ON-VEHICLE SERVICE
TSB Revision
MULTIPORT FUEL INJECTION (MFI)
13A-899
6. If vibration is detected during the test, the stepper motor can
be considered to be normal.
EVAPORATIVE EMISSION PURGE SOLENOID
CHECK
M1131005600228
Refer to GROUP 17, Emission Control System
− Evaporative
Emission System
− Evaporative Emission Purge Solenoid
Check
.
EGR SOLENOID CHECK
M1131005700236
Refer to GROUP 17, Emission Control System
− Exhaust Gas
Recirculation (EGR) System
− EGR Solenoid Check
AKX01626 AB
INJECTOR
TSB Revision
MULTIPORT FUEL INJECTION (MFI)
13A-900
INJECTOR
REMOVAL AND INSTALLATION
M1131007100809
Pre-removal Operation
• Fuel Line Pressure Reduction (Refer to
• Intake Manifold Plenum Removal (Refer to GROUP15,
Post-installation Operation
• Intake Manifold Plenum Removal (Refer to GROUP15,
Intake Manifold
• Accelerator Cable Adjustment (Refer to GROUP 17,
On-vehicle Service
• Fuel Leakage Inspection
AC004783 AB
7
1
2
3
11
8
9
4
10
14
15
13
12
6
9
10
11
11
14
15
13
12
7
5
10
3, 5, 8
4, 6, 9
13 15 14
8.8 N·m
78 in-lb
8.8 N·m
78 in-lb
12 N·m
106 in-lb
12 N·m
106 in-lb
4.9 N·m
43 in-lb
ENGINE OIL
N
N
N
N
N
N
N
N
N
N
REMOVAL STEPS
1.
VACUUM HOSE CONNECTION
2.
FUEL RETURN HOSE
CONNECTION
>>A<<
3.
FUEL PRESSURE REGULATOR
4.
O-RING
>>A<<
5.
FUEL HIGH-PRESSURE HOSE
CONNECTION
6.
O-RING
7.
INJECTOR CONNECTOR
8.
FUEL PIPE
9.
O-RING
<<A>>
10. FUEL RAIL
11. INSULATOR
12. INSULATOR
<<A>>
>>A<<
13. INJECTOR
14. O-RING
15. GROMMET
REMOVAL STEPS (Continued)
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