Mitsubishi Lancer Evolution 7. Manual — part 210
MPI -
On-vehicle Service
13A-139
Checking the Coil Resistance
1. Disconnect the idle speed control servo connector.
2. Measure the resistance between terminal No. 2 and either
terminal No. 1 or terminal No. 3 of the connector at the
idle speed control servo side.
Standard value: 28 - 33 Ω (at 20_C)
3. Measure the resistance between terminal No. 5 and either
terminal No. 6 or terminal No. 4 of the connector at the
idle speed control servo side.
Standard value: 28 - 33 Ω (at 20_C)
Operation Check
1. Remove the throttle body.
2. Remove the stepper motor.
3. Connect the special tool (test harness: MB991709) to
the idle speed control servo connector.
4. Connect the positive (+) terminal of a power supply
(approximately 6 V) to the terminals No. 2 and No. 5.
5. With the idle speed control servo as shown in the
illustration, connect the negative (-) terminal of the power
supply to each clip as described in the following steps,
and check whether or not a vibrating feeling (a feeling
of very slight vibration of the stepper motor) is generated
as a result of the activation of the stepper motor.
(1) Connect the negative (-) terminal of the power supply
to the terminals No. 1 and No. 4.
(2) Connect the negative (-) terminal of the power supply
to the terminals No. 3 and No. 4.
(3) Connect the negative (-) terminal of the power supply
to the terminals No. 3 and No. 6.
(4) Connect the negative (-) terminal of the power supply
to the terminals No. 1 and No. 6
(5) Connect the negative (-) terminal of the power supply
to the terminals No. 1 and No. 4.
(6) Repeat the tests in sequence from (5) to (1).
6. If, as a result of these tests, vibration is detected, the
stepper motor can be considered to be normal.
MPI -
On-vehicle Service
13A-140
FUEL PRESSURE CONTROL SOLENOID
VALVE CHECK
OPERATION CHECK
1. Disconnect the vacuum hose from the solenoid valve.
2. Separate the harness connector.
3. Connect the hand vacuum pump to the solenoid valve’s
A nipple.
4. Connect the solenoid valve terminal and battery terminal
with a jumper wire.
5. Disconnect the jumper wire between the battery’s (-)
terminals, apply a negative pressure, and inspect the
tightness.
Standard value:
Jumper wire
State of B
nipple
Normal state
Connected
Opened
Negative pressure leaks.
Closed
Negative pressure is
maintained.
Disconnected
Opened
Negative pressure is
maintained.
COIL RESISTANCE CHECK
Measure the resistance between the solenoid valve terminals.
Standard value: 28 – 36 Ω (at 20_C)
PURGE CONTROL SOLENOID VALVE CHECK
Refer to GROUP 17 - Emission Control System.
EGR CONTROL SOLENOID VALVE CHECK
Refer to GROUP 17 - Emission Control System.
Fuel pres-
sure control
solenoid
valve
Battery
MPI -
Injector
13A-141
INJECTOR
REMOVAL AND INSTALLATION
Pre-removal and Post-installation Operation
D
Fuel Discharge Prevention (Refer to P.13A-125.)
D
Strut Tower Bar Removal and Installation
(Refer to GROUP 42.)
D
Air Hose E, Air By-pass Hose, Air Pipe C Removal
and Installation (Refer to GROUP 15 - Intercooler.)
D
Fuel Leakage Check
2
1
3
13
5
6
7
8
9
10
11
12
4
8.9 ± 1.9 N·m
8.9 ± 1.9 N·m
5.0 ± 1.0 N·m
Apply engine oil to all
moving parts during
installation.
14
15
16
12
6
5.0 ± 1.0 N·m
Removal steps
1. Control harness connector
2. Accelerator cable assembly
connection (Throttle body side)
3. Injector harness connector
"
AA 4. High-pressure fuel hose connection
5. O-ring
6. Fuel return hose connection
7. Vacuum sensor connector
"
AA 8. Fuel pressure regulator
9. O-ring
10. Fuel return pipe
A
A"
11. Delivery pipe
12. Insulator
13. Insulator
A
A" "AA 14. Injector
15. Grommet
16. O-ring
MPI -
Injector
13A-142
REMOVAL SERVICE POINT
A
A" DELIVERY PIPE/INJECTOR REMOVAL
Remove the delivery pipe (with the injectors attached to it).
Caution
Care must be taken, when removing the delivery pipe,
not to drop the injector.
INSTALLATION SERVICE POINT
"
AA INJECTOR/FUEL PRESSURE REGULATOR
/HIGH-PRESSURE FUEL HOSE INSTALLATION
1. Apply a drop of new engine oil to the O-ring.
Caution
Be sure not to let engine oil enter the delivery pipe.
2. While turning the injector, high-pressure fuel hose and
fuel pressure regulator to the right and left, install the
delivery pipe, while being careful not to damage the O-ring.
After installing, check that the hose turns smoothly.
3. If it does not turn smoothly, the O-ring may be trapped,
remove the injector, high-pressure fuel hose or fuel
pressure regulator and then re-insert it into the delivery
pipe and check once again.
4. Tighten the high-pressure fuel hose and fuel pressure
regulator to the specified torque.
Tightening torque:
5.0 ± 1.0 N·m (High-pressure fuel hose)
8.9 ± 1.9 N·m (Fuel pressure regulator)
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