exhaust MITSUBISHI LANCER 2005 User Guide
[x] Cancel search | Manufacturer: MITSUBISHI, Model Year: 2005, Model line: LANCER, Model: MITSUBISHI LANCER 2005Pages: 788, PDF Size: 45.98 MB
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EXHAUST PIPE AND MAIN MUFFLER
INTAKE AND EXHAUST15-11
EXHAUST PIPE AND MAIN MUFFLER
REMOVAL AND INSTALLATIONM1151008700301
AC303694AB
1 3
50 ± 10 N·m
2
6
N
N
45
74
N89
59 ± 10 N·m 45 ± 5 N·m13 ± 2 N·m
45 ± 5 N·m
13 ± 2 N·m
9
<4G1>
AC303695AB
1 3
50 ± 10 N·m
2
6
N
N
45
74
N89
59 ± 10 N·m 45 ± 5 N·m13 ± 2 N·m
45 ± 5 N·m
13 ± 2 N·m
9
<4G6>
Exhaust main muffler removal
steps
1. Exhaust main muffler
3. Exhaust pipe gasket
4. Exhaust muffler hanger
Centre exhaust pipe removal
steps
2. Centre exhaust pipe
3. Exhaust pipe gasket
7. Exhaust pipe gasketFront exhaust pipe removal
steps
<> >>A<<5. Engine control oxygen sensor
(rear)
6. Front exhaust pipe
7. Exhaust pipe gasket
8. Exhaust pipe gasket
9. Exhaust muffler hanger
Page 64 of 788
EXHAUST PIPE AND MAIN MUFFLER
INTAKE AND EXHAUST15-12
REMOVAL SERVICE POINT
<> ENGINE CONTROL OXYGEN
SENSOR (REAR) REMOVAL
Use special tool oxygen sensor wrench (MD998770)
to remove the engine control oxygen sensor (rear).
INSTALLATION SERVICE POINT
>>A<< ENGINE CONTROL OXYGEN
SENSOR (REAR) INSTALLATION
Use special tool oxygen sensor wrench (MD998770)
to install the engine control oxygen sensor (rear).
AC212566AD
MD998770
Engine control
oxygen sensor
(rear)
AC212566AD
MD998770
Engine control
oxygen sensor
(rear)
Page 94 of 788
IGNITION SYSTEM
ENGINE ELECTRICAL16-30
IGNITION SYSTEM
GENERAL INFORMATIONM1163000100294
This system is equipped with two ignition coils (A and
B) with built-in power transistors for the No. 1 and
No. 4 cylinders and the No. 2 and No. 3 cylinders
respectively.
Interruption of the primary current flowing in the
primary side of ignition coil A generates a high
voltage in the secondary side of ignition coil A. The
high voltage thus generated is applied to the spark
plugs of No. 1 and No. 4 cylinders to generate
sparks. At the time that the sparks are generated at
both spark plugs, if one cylinder is at the
compression stroke, the other cylinder is at the
exhaust stroke, so that ignition of the compressed
air/fuel mixture occurs only for the cylinder which is
at the compression stroke.
In the same way, when the primary current flowing in
ignition coil B is interrupted, the high voltage thus
generated is applied to the spark plugs of No. 2 and
No. 3 cylinders.The engine-ECU
turns the two power transistors inside the ignition
coils alternately on and off. This causes the primary
currents in the ignition coils to be alternately
interrupted and allowed to flow to fire the cylinders in
the order 1-3-4-2.
The engine-ECU
determines which ignition coil should be controlled
by means of the signals from the camshaft position
sensor which is incorporated in the camshaft and
from the crank angle sensor which is incorporated in
the crankshaft. It also detects the crankshaft position
in order to provide ignition at the most appropriate
timing in response to the engine operation
conditions. It also detects the crankshaft position in
order to provide ignition at the most appropriate
timing in response to the engine operation
conditions.
When the engine is cold or operated at high
altitudes, the ignition timing is slightly advanced to
provide optimum performance.
When the automatic transmission shifts gears, the
ignition timing is also retarded in order to reduce
output torque, thereby alleviating shifting shocks.
SYSTEM DIAGRAM
AK101074
Air flow sensor
<4G6> MAP sensor <4G1>
Intake air temperatur
sensor
Engine coolant
temperature sensor
Camshaft position
sensor
Crank angle sensor
Barometric pressure
sonsor <4G6>
Detonatoin sensor
Ignition switch-STEngine-A/T-
ECU Engine-ECU
Cylinder No.
23 4
AG
1 Spark plugIgnition coil AIgnition
switch
Battery
Page 109 of 788
17-1
GROUP 17
ENGINE AND
EMISSION
CONTROL
CONTENTS
ENGINE CONTROL . . . . . . . . . .
17-2
GENERAL INFORMATION . . . . . .
17-2
SERVICE SPECIFICATIONS. . . . .17-2
ON-VEHICLE SERVICE. . . . . . . . .17-2
ACCEL CABLE CHECK AND
ADJUSTMENT . . . . . . . . . . . . . . . . . . . . 17-2
ACCELERATOR CABLE AND
PEDAL . . . . . . . . . . . . . . . . . . . . . .
17-3
REMOVAL AND INSTALLATION . . . . . 17-3
EMISSION CONTROL MPI . . . .17-5
GENERAL INFORMATION . . . . . .
17-5
EMISSION CONTROL DEVICE
REFERENCE TABLE . . . . . . . . . .
17-5
SERVICE SPECIFICATION(S) . . .17-5
VACUUM HOSE. . . . . . . . . . . . . . .17-6
VACUUM HOSE PIPING DIAGRAM . . . 17-6
VACUUM CIRCUIT DIAGRAM . . . . . . . 17-7
VACUUM HOSE CHECK. . . . . . . . . . . . 17-8
VACUUM HOSE INSTALLATION . . . . . 17-8
CRANKCASE EMISSION CONTROL
SYSTEM . . . . . . . . . . . . . . . . . . . . .
17-8
GENERAL INFORMATION (CRANKCASE
EMISSION CONTROL SYSTEM) . . . . . 17-8COMPONENT LOCATION (CRANKCASE
EMISSION CONTROL SYSTEM) . . . . . 17-9
POSITIVE CRANKCASE VENTILATION
SYSTEM CHECK . . . . . . . . . . . . . . . . . . 17-9
POSITIVE CRANKCASE VENTILATION
(PCV) VALVE CHECK . . . . . . . . . . . . . . 17-9
EVAPORATIVE EMISSION CONTROL
SYSTEM . . . . . . . . . . . . . . . . . . . . .
17-9
GENERAL INFORMATION (EVAPORATIVE
EMISSION CONTROL SYSTEM) . . . . . 17-9
COMPONENT LOCATION (EVAPORATIVE
EMISSION CONTROL SYSTEM) . . . . . 17-10
PURGE CONTROL SYSTEM CHECK . . 17-10
PURGE PORT VACUUM CHECK . . . . . 17-11
PURGE CONTROL SOLENOID VALVE
CHECK . . . . . . . . . . . . . . . . . . . . . . . . . . 17-11
FUEL VAPOUR CANISTER REMOVAL
AND INSTALLATION . . . . . . . . . . . . . . . 17-12
EXHAUST GAS RECIRCULATION
(EGR) SYSTEM . . . . . . . . . . . . . . .
17-13
GENERAL INFORMATION
(EGR SYSTEM) . . . . . . . . . . . . . . . . . . . 17-13
COMPONENT LOCATION
(EGR SYSTEM) . . . . . . . . . . . . . . . . . . . 17-14
EGR SYSTEM CHECK . . . . . . . . . . . . . 17-15
EGR VALVE CHECK . . . . . . . . . . . . . . . 17-15
EGR PORT VACUUM CHECK <4G1>. . 17-16
EGR CONTROL SOLENOID VALVE
CHECK <4G1> . . . . . . . . . . . . . . . . . . . . 17-16
EGR CONTROL SOLENOID VALVE
CHECK <4G6> . . . . . . . . . . . . . . . . . . . . 17-17
EXHAUST GAS RECIRCULATION (EGR)
VALVE REMOVAL AND
INSTALLATION . . . . . . . . . . . . . . . . . . . 17-18
CATALYTIC CONVERTER . . . . . .17-18
REMOVAL AND INSTALLATION . . . . . . 17-18
Page 113 of 788
EMISSION CONTROL
ENGINE AND EMISSION CONTROL17-5
EMISSION CONTROL
GENERAL INFORMATIONM1173000100370
The emission control system consists of the following
subsystems:•Crankcase emission control system
•Evaporative emission control system
•Exhaust emission control system
EMISSION CONTROL DEVICE
REFERENCE TABLE
M1173006600135
SERVICE SPECIFICATION(S)M1173000300288
Items Name Specification
Crankcase emission control
systemPositive crankcase ventilation
(PCV) valveVariable flow type
(Purpose: HC reduction)
Evaporative emission control
systemCanister
Purge control solenoid valveEquipped
Duty cycle type solenoid valve
(Purpose: HC reduction)
Exhaust emission control system Air-fuel ratio control device - MPI
systemOxygen sensor feedback type
(Purpose: CO, HC, NOx reduction)
Exhaust gas recirculation system
•EGR valve
•EGR control solenoid valveEquipped
Single type
Duty cycle type solenoid valve
(Purpose: NOx reduction)
Catalytic converter Monolith type
(Purpose: CO, HC, NOx reduction)
Related parts Crankcase
emission
control
systemEvaporative
emission
control
systemAir/fuel ratio
control
systemCatalytic
converterExhaust gas
recirculation
system
PCV valve
×
Purge control solenoid valve
×
MPI system component
××
Catalytic converter
×
EGR valve
×
EGR control solenoid valve
×
Items Standard value
Purge control solenoid valve coil resistance (at 20°C) Ω30 − 34
EGR control solenoid valve coil resistance (at 20°C) Ω29 − 35
Page 121 of 788
EMISSION CONTROL
ENGINE AND EMISSION CONTROL17-13
EXHAUST GAS RECIRCULATION
(EGR) SYSTEM
GENERAL INFORMATION (EGR SYSTEM)M1173005200327
The exhaust gas recirculation (EGR) system lowers
the nitrogen oxide (NOx) emission level.
When the air/fuel mixture combustion temperature is
high, a large quantity of nitrogen oxides (NOx) is
generated in the combustion chamber.
Therefore, this system recirculates part of emission
gas from the exhaust port of the cylinder head to the
combustion chamber through the intake manifold to
decrease the air/fuel mixture combustion
temperature, resulting in reduction of NOx.The EGR flow rate is controlled by the EGR valve so
as not to decrease the driveability.
OPERATION
The EGR valve is being closed and does not
recirculate exhaust gases under one of the following
conditions.
Otherwise, the EGR valve is opened and recirculates
exhaust gases.
•The engine coolant temperature is low.
•The engine is at idle.
•The throttle valve is widely opened.
SYSTEM DIAGRAM
AK300775
Manifold absolute
pressure (MAP) sensor Engine-ECU
Engine-A/T-ECU
Engine coolant
temperature sensor
Crank angle sensor EGR
control
solenoid
valve
EGR valveOFF
ON
Control
relay
Battery
AB
<4G1>
Page 126 of 788
EMISSION CONTROL
ENGINE AND EMISSION CONTROL17-18
EXHAUST GAS RECIRCULATION (EGR)
VALVE REMOVAL AND INSTALLATION
M1173010500175
CATALYTIC CONVERTER
REMOVAL AND INSTALLATIONM1173003900386
Refer to GROUP 15 - Exhaust Pipe and Main Muffler P.15-11.
Pre-removal and Post-installation Operation
Air Cleaner Assembly Removal and Installation (Refer to
GROUP 15 P.15-3).
AC208130
21 ± 4 N·m
2 13
N
AC
<4G1>
AC301219
19 ± 3 N·m2 1
3
N
AC
<4G6>
Removal steps
1. Emission vacuum hose connection2. EGR valve
3. EGR valve gasketRemoval steps (Continued)
Page 146 of 788
DRIVE SHAFT ASSEMBLY
FRONT AXLE26-14
DRIVE SHAFT ASSEMBLY
REMOVAL AND INSTALLATIONM1261003500399
CAUTION
•Do not strike the ABS rotors installed to the BJ outer race of drive shaft against other parts when
removing or installing the drive shaft. Otherwise the ABS rotors will be damaged.
•Be careful not to strike the pole piece at the tip of the front ABS sensor with tools during servicing
work.
Pre-installation Operation
•Transmission Fluid Draining (Refer to GROUP
22A, On-vehicle Service − Transmission Oil
Replacement P.22A-8).
•Front Exhaust Pipe Removal (Refer to GROUP
15, Exhaust Pipe and Muffler P.15-11).Post-installation Operation
•Front Exhaust Pipe Installation (Refer to
GROUP 15, Exhaust Pipe and Muffler
P.15-11).
•Check the Ball Joint Dust Cover for cracks or
damage by pushing it with your finger.
•Transmission Fluid Filling (Refer to GROUP
22A, On-vehicle Service − Transmission Oil
Replacement P.22A-8).
AC303689AB
9
N
N
NN
10 7
4
3
2
1
25 ± 5 N·m
245 ± 29 N·m
108 ± 10 N·m
8
5 6
1112
7
7
Removal steps
<> >>C<<1. Drive shaft nut
>>C<<2. Washer
3. Front ABS sensor
4. Front ABS sensor bracket
5. Brake hose bracket
>>B<<6. Self-locking nut (stabilizer bar
connection)
>>B<<7. Stabilizer rubber8. Collar
9. Lower arm connecting bolt
<>10. Self-locking nut (tie rod end
connection)
<
12. CirclipRemoval steps (Continued)
Page 178 of 788
CROSSMEMBER
POWER PLANT MOUNT32-8
INSTALLATION SERVICE POINTS
>>A<< ENGINE FRONT ROLL STOPPER
BRACKET INSTALLATION
Install the engine front roll stopper bracket so that its
hole points towards the front side of the vehicle.
>>B<< ENGINE MOUNTING CUSHION
STOPPER INSTALLATION <4G6>
Install the engine mounting cushion stopper as
shown.
CROSSMEMBER
REMOVAL AND INSTALLATIONM1321003200368
CAUTION
•Before removing the steering wheel and air bag module assembly, always refer to GROUP 52B -
Service Precautions P.52B-5, Air bag Module and Clock Spring P.52B-210. Also, set the front
wheels so that they are facing straight forward, and remove the ignition key. If you fail to do this,
the SRS clock spring will be damaged, causing the SRS air bag to be inoperative and serious
injury.
•*
1: Indicates parts which should be initially tightened, and then fully tightened after placing the
vehicle horizontally and loading the full weight of the engine on the vehicle body.
•*
2: Indicates parts which should be temporarily tightened, and then fully tightened with the vehicle
on the earth in the unladen condition.
AC005918Front of vehicleHoleACAC304315ABFront of vehicle
HoleEngine mounting
cushion stopper
Pre-removal Operation
•Centermember Removal (Refer to P.32-7).
•Front Exhaust Pipe Removal (Refer to GROUP 15,
Exhaust Pipe and Main Muffler P.15-11).
•Steering Wheel Air Bag Module Assembly Removal
(Refer to GROUP 37, Steering Wheel P.37-17).
•Power Steering Fluid Draining (Refer to GROUP 37,
On-vehicle Service P.37-13).Post-installation Operation
•Front Exhaust Pipe Installation (Refer to GROUP 15,
Exhaust Pipe and Main Muffler P.15-11).
•Centermember Installation (Refer to P.32-7).
•Clock Spring Centring (Refer to GROUP 52B, Air Bag
Modules and Clock Spring P.52B-210).
•Steering Wheel Air Bag Module Assembly Installation
(Refer to GROUP 37, Steering Wheel P.37-17).
•Power Steering Fluid Supplying (Refer to GROUP 37,
On-vehicle Service P.37-13).
•Power Steering Fluid Line Bleeding (Refer to GROUP 37,
On-vehicle Service P.37-13).
•Press the dust cover with a finger to check whether the
dust cover cracked or damaged.
•Checking Steering Wheel Position with Wheels Straight
Ahead.
•Front Wheel Alignment Check and Adjustment (Refer to
GROUP 33, On-vehicle Service P.33-5).