Mitsubishi Galant 9G. Manual — part 923
ON-VEHICLE SERVICE
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MULTIPORT FUEL INJECTION (MFI) <2.4L ENGINE>
13A-1134
3. If the output voltage is not within the standard value, replace
the heated oxygen sensor.
NOTE: For removal and installation of the heated oxygen sen-
sor, refer to GROUP 15, Exhaust Pipe and Main Muffler
INJECTOR CHECK
M1131005200554
Measurement of Resistance between Terminals
1. Disconnect the injector connector.
2. Measure resistance between terminals.
Standard value: 10.5
− 13.5 ohms [at 20°C (68°F)]
3. If not within specification, replace the injector.
4. Install the injector connector.
Checking operation sound
Using a stethoscope or long blade screwdriver, check the oper-
ation sound ("tick-tick-tick") of injectors during idling or during
cranking. Check that as the engine speed increases, the fre-
quency of the operating sound also increases.
1. If the injector you are checking is not operating, you may
hear the operating sound of the other injectors.
2. If no operating sound is heard from the injector that is being
checked, check the injector drive circuit. If there is nothing
wrong with the circuit, a defective injector or powertrain
control module (PCM) is suspected.
THROTTLE ACTUATOR CONTROL MOTOR
CHECK
M1131051000100
.
<Operation Inspection>
1. Disconnect the air intake hose from the throttle body.
2. Set the ignition switch to the "ON" position.
3. Operate the accelerator pedal and confirm that the throttle
valve is opening and closing accordingly.
.
AK000602AB
1 2
AK000124 AB
STETHOSCOPE
ON-VEHICLE SERVICE
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MULTIPORT FUEL INJECTION (MFI) <2.4L ENGINE>
13A-1135
<Checking the Terminal Resistance>
1. Disconnect the throttle position sensor connector.
2. Measure the resistance between terminal No. 1 and No. 2.
Standard value: 0.3
− 80 ohms [at 20°C (68°F)]
3. If resistance is outside the standard value, replace the
throttle body assembly.
ENGINE OIL CONTROL VALVE CHECK
M1131053200070
.
Checking the Operation Sound
1. Disconnect the engine oil control valve connector.
CAUTION
To prevent the coil from burning, keep the duration of the
voltage application as short as possible.
2. Check that the operation sound of the engine oil control
valve can be heard when the positive battery voltage is
supplied to the engine oil control valve. (Use the jumper
wires to connect terminal No. 2 of the engine oil control
valve connector to the positive battery terminal and terminal
No. 1 to the negative battery terminal.)
3. If the operation sound cannot be heard, replace the engine
oil control valve.
.
Checking the Coil Resistance
1. Disconnect the engine oil control valve connector.
2. Measure resistance between terminal No. 1 and terminal
No. 2 of the connector at the engine oil control valve side.
Standard value: 6.9
− 7.9 ohms [at 20°C (68°F)]
3. If resistance is not within the standard value, replace the
engine oil control valve.
EVAPORATIVE EMISSION PURGE SOLENOID
CHECK
M1131005600273
Refer to GROUP 17, Emission Control System
− Evaporative
Emission Control System
− Evaporative Emission Purge Sole-
.
6
1 2 3 4 5
AK202992
THROTTLE ACTUATOR
CONTROL MOTOR
CONNECTOR
AB
AK302171 AB
ENGINE OIL
CONTROL
VALVE
MB991658
AK302152
1 2
AB
HARNESS CONNECTOR:
COMPONENT SIDE
INJECTOR
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MULTIPORT FUEL INJECTION (MFI) <2.4L ENGINE>
13A-1136
EVAPORATVE EMISSION VENTILATION
SOLENOID CHECK
M1131012800257
Refer to GROUP 17, Emission Control System
− Evaporative
Emission Canister and Fuel Tank Pressure Relief Valve
−
Evaporative Emission Canister and Fuel Tank Pressure Relief
Valve Inspection
EGR VALVE CHECK
M1131051500053
Refer to GROUP 17, Emission Control System
− Exhaust Gas
Recirculation (EGR) System
− EGR Valve Check.
INJECTOR
REMOVAL AND INSTALLATION
M1131007100757
Pre-removal Operation
• Fuel Discharge Prevention (Refer to
• Air Cleaner Cover and Air Intake Hose Removal (Refer to
GROUP 15, Air Cleaner
Post-installation Operation
• Air Cleaner Cover and Air Intake Hose Installation (Refer
to GROUP 15, Air Cleaner
• Fuel Leakage Inspection.
AC308302
3
2
4
5
6
7
8
9
10
15
16
13
14
17
20
18
19
12
11
N
N
5.0 ± 1.0 N·m
44 ± 9 in-lb
11 ± 1 N·m
98 ± 8 in-lb
11 ± 1 N·m
98 ± 8 in-lb
AB
1
APPLY ENGINE OIL
TO ALL MOVING
PARTS BEFORE
INSTALLATION.
REMOVAL STEPS
1.
PCV HOSE CONNECTION
2.
IGNITION COIL CONNECTORS
3.
INJECTOR CONNECTORS
4.
EGR VALVE CONNECTOR
5.
ROCKER COVER BRACKET
INSTALLATION BOLTS
6.
THROTTLE POSITION SENSOR
CONNECTOR
7.
MANIFOLD ABSOLUTE PRESSURE
SENSOR
8.
EVAPORATIVE EMISSION PURGE
SOLENOID CONNECTOR
9.
KNOCK SENSOR CONNECTOR
10.
POWER STEERING PRESSURE
SWITCH CONNECTOR
>>A<<
11.
FUEL HIGH-PRESSURE HOSE
CONNECTION
12.
O-RING
<<A>>
13.
FUEL RAIL AND INJECTOR
ASSEMBLY
14.
INSULATORS
>>A<<
15.
INJECTOR ASSEMBLY
16.
FUEL RAIL
17.
O-RING
18.
INSULATORS
19.
GROMMETS
20.
INJECTORS
REMOVAL STEPS (Continued)
INJECTOR
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MULTIPORT FUEL INJECTION (MFI) <2.4L ENGINE>
13A-1137
REMOVAL SERVICE POINT
.
<<A>> FUEL RAIL AND INJECTOR ASSEMBLY
REMOVAL
CAUTION
Do not drop the injector.
Remove the fuel rail with the injectors attached to it.
INSTALLATION SERVICE POINT
.
>>A<< INJECTOR ASSEMBLY/FUEL HIGH-PRES-
SURE HOSE INSTALLATION
CAUTION
• Do not kink the fuel high-pressure hose as it is made of
plastics.
• Do not let the engine oil get into the fuel rail.
1. Apply a drop of new engine oil to the O-ring.
2. Turn the injector to the right and left to install to the fuel rail.
Repeat for fuel high-pressure hose. Be careful not to
damage the O-ring. After installing, check that the item turns
smoothly.
3. If it dose not turn smoothly, the O-ring may be trapped,
remove the item, re-install it into the fuel rail and check
again.
4. Tighten the fuel high-pressure hose to the specified torque.
Tightening torque: 5.0
± 1.0 N⋅m (44 ± 9 in-lb)
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