MITSUBISHI LANCER EVOLUTION 2007 Service Repair Manual

INTAKE AND EXHAUST -On-vehicle Service15-5
3. If there is a significant deviation from the standard value,
check the actuator or the waste gate valve: replace
actuator or turbocharger assembly if necessary.
WASTE GATE SOLENOID VALVE CHECK
OPERATION CHECK
1. Connect a hand vacuum pump to the solenoid valve nipple
A.
2. Using a jumper wire, connect between the solenoid valve
terminal and battery terminal.
3. Connecting and disconnecting the jumper wire at the
battery negative terminal to apply a negative pressure,
check tightness.
Jumper wireB nipple
conditionNormal condition
ConnectedOpenedNegative pressure leaks.
ClosedNegative pressure is held.
DisconnectedOpenedNegative pressure is held.
COIL RESISTANCE CHECK
Measure the resistance between solenoid valve terminals.
Standard value: 29 – 35Ω(at 20_C)
AIR BYPASS VALVE CHECK
1. Remove the air bypass valve.
2. Connect the hand vacuum pump to the nipple of the
air bypass valve.
3. Apply a negative pressure of approximately 49 kPa, and
check that air tightness is maintained.
4. Also check operation of the valve.
Standard value:
Negative pressureValve operation
Approximately 53 kPaIt starts opening
Battery B A

INTAKE AND EXHAUST -On-vehicle Service15-6
INTAKE MANIFOLD PRESSURE CHECK
Refer to GROUP 11A – On-vehicle Service.
SECONDARY AIR CONTROL SYSTEM CHECK
1. Start the engine and carry out idling.
2. Confirm that the secondary air valve lifts up when the
engine-ECU connector No. 53 terminal is short-circuited
with the earth using a jumper wire.
The engine-ECU connector must be connected at this
time.
SECONDARY AIR CONTROL SOLENOID
VALVE CHECK
OPERATION CHECK
1. Disconnect the vacuum hose (white-striped, yellow-
striped) 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.
Jumper wireState of B
nippleNormal state
ConnectedOpenedNegative pressure leaks.
ClosedNegative pressure is
maintained.
DisconnectedClosedNegative pressure leaks.
Vacuum tank
Secondary
air control
solenoid
valve
Battery A B

INTAKE AND EXHAUST -On-vehicle Service15-7
COIL RESISTANCE CHECK
Measure the resistance between the solenoid valve terminals.
Standard value: 29 – 35Ω(at 20_C)
SECONDARY AIR VALVE CHECK
1. Disconnect the secondary air valve.
2. Connect the hand vacuum pump to the secondary air
valve’s nipple.
3. Apply a negative pressure of 67 kPa, and confirm that
the negative pressure is maintained.
4. Blow in air from the (A) side and (B) side of the secondary
air valve, and inspect the ventilation.
Negative pressureAir blow-in
directionAir ventilation
0 kPa
(State without
negative pressure)(A)→(B)Not ventilated
40 kPa or more(A)→(B)Ventilated
(B)→(A)Not ventilated
VACUUM TANK CHECK
1. Connect the hand vacuum pump to the vacuum tank’s
A nipple. Apply a negative pressure of 67 kPa, and confirm
that the negative pressure is maintained.
2. Connect the hand vacuum pump to the vacuum tank’s
B nipple.
3. Plug the A nipple with a finger, and apply a negative
pressure of 67 kPa. Confirm that the negative pressure
leaks immediately when the finger is released.
BA
A
B

INTAKE AND EXHAUST -Air Cleaner15-8
AIR CLEANER
REMOVAL AND INSTALLATION
Caution
Parts marked by * are made of recycled-paper mixed plastic material, so observe the following
precautions.
1. Avoid any shock or load to these parts when removing and installing them.
2. Engage the case hinges securely when assembling these parts.
NOTE
Parts marked by * are made of recycled-paper mixed plastic material, so can be disposed of by incineration.
1
6
*
37
28
5 4
9.0±1.0 N·m 6.0±1.0 N·m
9.0±1.0 N·m
9.0±1.0 N·m 4.0±1.0 N·m
4.0±1.0 N·m
9.0±1.0 N·m
2
9
1011
9.0±1.0 N·m
Removal steps
DBattery
1. Air duct
2. Vacuum hose
DAir pipe E, Air by-pass valve assembly,
Air by-pass hose (Refer to P.15-9.)
3. Air intake hose
4. Air flow sensor assembly5. Gasket
6. Air cleaner assembly
7. Air cleaner cover
8. Air cleaner element
9. Air cleaner body
10. Waste gate solenoid valve
11. Air cleaner bracket

INTAKE AND EXHAUST -Intercooler15-9
INTERCOOLER
REMOVAL AND INSTALLATION
Pre-removal and Post-installation Operation
DAir Cleaner Removal and Installation (Refer to P.15-8.)
DWater Spray Hose Connection removal and
Installation (Refer to P.15-10.)DFront Bumper Removal and Installation (Refer to
GROUP 51.)
1234
5
12±1 N·m
6.0±1.0 N·m
9.0±1.0 N·m12±1 N·m
12±1 N·m 6.0±1.0 N·m
6
7
8 9 10 11
1213
14
12±1 N·m6.0±1.0 N·m 6.0±1.0 N·m
6.0±1.0 N·m6.0±1.0 N·m
6.0±1.0 N·m
12±1 N·m
6.0±1.0 N·m 6.0±1.0 N·m
Removal steps
1. Vacuum hose
2. Air by-pass valve assembly
3. Air by-pass hose
4. Air hose E
5. Air pipe C
6. Air hose D
7. Air pipe B8. Bracket
9. Air hose C
10. Air hose A
11. Air pipe A
12. Air hose B
13. Intercooler assembly
14. Air guide

INTAKE AND EXHAUST -Intercooler Water Spray15-10
INTERCOOLER WATER SPRAY
Pre-removal and Post-installation Operation
DUnder Cover Removal and Installation (Refer to
GROUP 51 - Front Bumper.)DFront Bumper Removal and Installation (Refer to
GROUP 51.)
REMOVAL AND INSTALLATION

1
Water spray switch removal steps
1. Water spray switch
DHarness connector connection

INTAKE AND EXHAUST -Intercooler Water Spray15-11

2
3
46
7
8 9
1011
12
6
613
6 6 6
7 3
4
56
7
7
6711±2 N·m
11±2 N·m
Water spray nozzle/Water spray
hose removal steps
2. Water spray hose connection
"AADTape
3. Clamp
4. Water spray nozzle (Upper)
5. Water spray nozzle (Lower)
"AA6. Water spray hose
7. Hose JointWasher tank removal steps
2. Water spray hose connection
8. Water spray motor harness
connector connection
9. Washer tank
10. Water spray hose
11. Water spray motor
12. Packing
13. Washer tank bracket

INTAKE AND EXHAUST -Intercooler Water Spray15-12
INSTALLATION SERVICE POINTS
"AAWATER SPRAY HOSE/TAPE INSTALLATION
Attach the water spray hose to the front bumper with a tape as shown in the illustration.

Tape
TapeTape
30 mm
20 mm
50 mm
0mm
10 mm10 mm10 mm10 mm
10 mm10 mm
35 mm
50 mm
0mm
65 mm
0mm
Tape

INTAKE AND EXHAUST -Intercooler Water Spray
ILL
15-13
INSPECTION
1. WATER SPRAY SWITCH CONTINUITY CHECK
SwitchpositionTerminalNoSwitchpositionTerminalNo.p
AUTOMANUALEARTHILL (+)ILL ( - )
12356
AUTO
NEUTRAL
MAN
2. WATER SPRAY MOTOR CHECK
(1) Check the water spray motor with the washer tank
attached after the washer tank is supplied with water.
(2) Check that the water is supplied with strong pressure
after energizing terminal number 1 with battery voltage
and earthing terminal number 2.

INTAKE AND EXHAUST -Secondary Air Supply System15-14
SECONDARY AIR SUPPLY SYSTEM
REMOVAL AND INSTALLATION
Pre-removal and Post-installation Operation
DAir Duct Removal and Installation (Refer to P.15-8.)
DStrut Tower Bar Removal and Installation (Refer to GROUP 42.)
1
2 34
5
49±5 N·m14±1 N·m 22±4 N·m
14±1 N·m 14±1 N·m 20±2 N·m
6
8 9 10
22±4 N·m24±3 N·m23±4 N·m
11±1 N·m Air pipe C 5.9±1.0 N·m
7
7 11
Removal steps
1. Control harness connector
connection
2. Heat protector
3. Vacuum hose connection
DAir pipe C (Refer to P.15-9.)
4. Vacuum pipe
5. Secondary air hose6. Secondary air pipe assembly
"AA7. Gasket
"BA8. Gasket
9. Secondary air control valve
10. Engine hanger
11. Secondary air control valve bracket