Idle MITSUBISHI LANCER IX 2006 User Guide

ENGINE CONTROL
ENGINE AND EMISSION CONTROL17-2
ENGINE CONTROL
GENERAL INFORMATIONM1171000100277
A cable-type accelerator mechanical sus-
pended-type pedal has been adopted.
SERVICE SPECIFICATIONS
M1171000300088
ItemStandard value
Accel cable play mm1.0 − 2.0
Engine idle speed r/min4G1750 ± 50
4G6750 ± 100
ON-VEHICLE SERVICE
ACCEL CABLE CHECK AND
ADJUSTMENT
M1171000900314
1. Turn A/C and lights OFF. Inspect and adjust at no load.
2. Warm engine until stabilized at idle.
3. Confirm idle speed is at standard value.
Standard value:
750 ± 50 r/min <4G1>
750 ± 100 r/min <4G6>
4. Stop engine. [ignition switch: LOCK (OFF)
position].
5. Confirm there are no sharp bends in the accelerator cable.
6. Check the inner cable for correct slack.
Standard value: 1.0 − 2.0 mm
7. If there is too much slack or no slack, adjust play by the following procedures.
AC207966
Adjusting bolts
Plate
Accel cable
AC
<4G1>
AC301055
Adjusting bolts
Plate
Accel cable
AC
<4G6>
(1) Loosen th e adjusting bo lt s to re lease the
cab l e.
(2) M o v e th e pla t e until the inne r cab l e play is a t
the st andard value, an d then tighte n the
adjusting bo lt s.
(3) A f t e r adju s ting, check that the thro ttle leve r is
touching the stoppe r .

EMISSION CONTROL
ENGINE AND EMISSION CONTROL17-9
COMPONENT LOCATION (CRANKCASE
EMISSION CONTROL SYSTEM)
M1173007400208
AK300767
<4G1>
AB
PCV valve
AK204366
<4G6>
AC
PCV valve
POSITIVE CRANKCASE VENTILATION
SYSTEM CHECK
M11 7300 1 1 0017 9
1.Remove the ventilatio n hose from the PCV valve.
2.Remove the PCV valve from t he rocker cove r .
3.Reinst all the PCV valve at the ven t ila tion h o se.
4.S t art the engin e and run at idle .
AKX00336
PCV valve
AD
5.Pla c e a fing er at the open ing o f the PCV va lve
an d ch eck that vacu um o f the int a ke manifold is
fe lt.
NOTE: At this mo men t, the p l unge r in t he PCV
valve mo ves back an d forth.
6.If vacuum is not felt, clean t he PCV valve o r
re place it.
POSITIVE CRANKCASE VENTILA TION
(
P CV) V A L VE CHECK
M1173 0012 0018 7
AK100010
PCV valve
AC
1.In sert a thin rod in to the PCV valve from the side
shown in the illu strat i on (ro cke r cover in st allation
side) , and move the ro d back an d forth to ch eck
th at the plung er mo ves.
2.If the plunger does not move , there is a clo ggin g
in the PCV valve. In th is case, clean o r repla c e
th e PCV valve.
EVAPORA T IVE EMISSION CONTROL
SYSTEM
GENERAL INFORMA T ION (EV A PORA TIVE
EMISSION CONTROL SYSTEM)
M1173 0051 0040 5
The evaporat ive emission contro l syste m pre v ent s
f
uel vapours generat ed in t he fuel t ank from escaping
into t
he atmosp here.
Fuel vapours fro m the fuel t a n k flow throug h the f uel
t
a n k pre ssu re co ntrol valve an d vap our pipe/ho se to
be st
ored te mpora r ily in t he ca nister .
When dr iving the veh i cle, fue l va pours stor ed in the
canister
flow thro ugh th e purge solenoid and purge
port an
d go into the int a ke ma nifold to b e sen t to th e
combust
i on chamber .
When the eng ine co ola n t te mp eratu r e is low o r when
the int
a ke air q uantity is small (wh en the engine is at
idle
, for example), t he eng ine contro l unit turns the
purge sole
noid of f to shu t of f the fue l va pour flow to
the in
t a ke manif o ld.
This does not on ly insure the driveability when t he
engin
e is cold or runn ing und er low load b u t also st a
-
bilize the emissio n level.

EMISSION CONTROL
ENGINE AND EMISSION CONTROL17-11
2. Plug the nipple from which the vacuum hose was removed.
3. When the engine is cold or hot, apply a vacuum of 53 kPa, and check the condition of the vacuum.
When engine is cold
(Engine coolant temperature: 40°C or less)
Engine conditionNormal condition
At idleVacuum is maintained.
3,000 r/min
When engine is hot
(Engine coolant temperature: 80°C or higher)
Engine conditionNormal condition
At idleVacuum is maintained.
3,000 r/min (within 3
minutes after engine
starts)Vacuum will leak.
PURGE PORT VACUUM CHECKM1173001500177
AK300773
<4G1>
AB
Plug
Vacuum hose
AK300774
<4G6>
AB
Plug
Vacuum hose
1.Disco nnect th e vacuum ho se (red st ripe) from the
throttle body and connect a hand vacuum pump to
th e nip p le.
2.Plu g the vacuum hose (red stripe).
AK100011AC
Vac-
uum
Engine speed (r/min)
3.S t art the engine.
4.Check t hat a f a irly co nst ant n egative p r essure is
g enerate d regard l ess of the en gine spee d.
5.If no neg ative pressur e is genera t ed, th e port is
p r obably blocked an d sh ould be cleane d.
PURGE CONTROL SOLENOID VA L V E
CHECK
M1173 0017 0019 3
NOTE: Whe n discon nect i ng th e va cuum hose,
always make a mark so th at it can be reconnected at
original p o sition.
AK100012AC
Battery
A
AK100013
1.
Disco nnect the vacu um h o se f r om th e solenoid
valve.
2.Disco nnect the ha rness connector .
3.Con nect a ha nd vacu um pump to nipp le (A) of the
solen o id valve (ref e r to th e ill ust r ation at le f t ).
4.Check a i rtig htness b y app lying a vacuum with
volt age applied d i rectly from t he batt e ry to the
p u rge con t rol so leno id valve an d without app lying
volt age .

Battery voltageNormal condition
AppliedVacuum leaks
Not appliedVacuum maintained
EMISSION CONTROL
ENGINE AND EMISSION CONTROL17-12
5. Measure the resistance between the terminals of the solenoid valve.
Standard value: 30 − 34 Ω (at 20°C)
FUEL VAPOUR CANISTER RE MOVAL AND INSTALLATION
M1173004200153
Pre-removal and Post-installation Operation
Air Cleaner Assembly Removal and Installation (Refer to
GROUP 15
P.15-3).
AC208253
1
2
3
4 5 6
7 8
AD
Removal steps
1.Emission vacuum hose connection
2.Fuel vapour control line hose
3.Fuel vapour control check valve
4.Fuel vapour control line hose
5.Fuel vapour control line clamp
6.Fuel vapour canister
7.Fuel high-pressure hose clamp
8.Fuel vapour canister bracket
EXHAUST GAS RECIRCULA
T ION
(EGR) SYSTEM
GENERAL INFORMAT ION (EGR SYSTEM)
M1173 0052 0032 7
The exhaust gas recircu l atio n (EGR) system lowers
the nitrogen
oxide (NOx) emission level.
When the air/fuel mixture combus tio n temp erature is
high,
a larg e qua ntity of nitrogen oxides (NOx) is
generat
ed in the comb ustion chamb e r .
Therefor e, this syst em re circulat es p a rt o f emission
gas fro
m the e x ha ust po rt of the cylinder h ead to th e
combust
i on chamber thro ugh th e int a ke ma nifold to
decre
ase the air/fuel mixture combust i on te mpera
-
ture, resulting in redu ctio n of NOx.
The EGR flow rate is cont rolle d by the EGR valve so
as no
t to de crease the driveability .
OPERAT ION
The EGR valve is being clos ed an d does not re circu-
late ex hau st ga ses unde r one o f the fo llo wing condi-
tions.
Otherwise, th e EGR va lve is opene d an d recircul ates
exha
ust g a ses.
•The engine coolan t temperature is low .
•The engine is at idle.
•The throttle va lve is widely ope ned.

ON-VEHICLE SERVICE
POWER STEERING37-12
TIE ROD END BALL JOINT TURNING
TORQUE CHECK
M1372001500554
CAUTION
•Do not remove the tie rod end nut from the
ball joint. Loosen it and use special tool to
avoid possible damage to the ball joint
threads.
•
AC208247AJ
CordBoltMB991897
or
MB992011
Nut
Ball joint
Hang special tool with cord to prevent it from
falling.
1. Install special tool ball joint remover (MB991897 or MB992011) as shown in the figure.
AC106821
Knob
Parallel
Bolt
Correct Wrong
AD
2. Turn the bolt and knob as necessary to make the jaws of special tool parallel, tighten the bolt by
hand and confirm that the jaws are still parallel.
NOTE: When adjusting the jaws in parallel, make
sure the knob is in the position shown in the fig
-
ure.
3. Tighten the bolt with a wrench to disconnect the tie rod end.
ACX01129 AB
MB990326
4. Move the ball joint stud several times and install
the nut on the stud. Using special tool preload
socket (MB990326), measure the ball joint turning
torque.
Standard value: 0.5 − 2.5 N⋅m
5. If the turning torque exceeds the standard value, replace the tie rod end.
6. If the turning torque is under the standard value, check the ball joint for axial play or ratcheting. If
no axial play or ratcheting, the ball joint can be
re-used.
CAUTION
Always use a new ball joint nut as it is a self-lock-
ing nut.
7. Install the tie rod end to the knuckle, then tighten a new self-locking nut to the specified torque.
Tightening torque: 25 ± 5 N⋅m
STATIONARY STEERING EFFORT CHECKM1372001700332
1. With the vehicle stopped on a flat and paved
surface, turn the steering wheel to the straight
ahead position.
2. Start the engine and set the engine idle speed.
Standard value: 750 ± 100 r/min
ACX01122 AB
3. Attach a spring balance to the outer
circumference of the steering wheel and measure
the steering force required to turn the steering
wheel from the straight ahead position to the left
and right (within a range of 1.5 turns). Also check
to be sure that there is no significant change in
the required steering effort.
Standard value:
Steering effort: 29 N or less
Fluctuation allowance: 5.9 N or less
4. If the measured value exceeds the standard value, check and adjust the related parts.

ON-VEHICLE SERVICE
POWER STEERING37-14
POWER STEERING SYSTEM AIR
BLEEDING
M1372002200330
Perform air bleeding procedure as necessary after
replacing the steering gear or the steering fluid lines.
1. Raise and support the front wheels.
2. Disconnect the ignition coil connectors (Refer to GROUP 16, Ignition Coil
P.16-38 or P.16-39).
CAUTION
Perform air bleeding only while cranking the
engine. If air bleeding is performed while the
engine is running, air could enter the fluid. Dur
-
ing air bleeding, refill the steering fluid supply so
that the level never falls below the "MIN" mark on
the oil reservoir.
3. Turn the steering wheel all the way to the left and
right five or six times wh ile using the starter motor
to crank the engine intermittently several times
(for 15 to 20 seconds).
4. Connect the ignition coil connectors (Refer to GROUP 16, Ignition Coil
P.16-38 or P.16-39).
5. Start the engine (idling).
6. Turn the steering wheel to the left and right until there are no air bubbles in the oil reservoir.
7. Confirm that the fluid is not milky, and that the level is between "MAX" and "MIN" marks.
8. Confirm that there is very little change in the fluid
level when the steering wheel is turned left and
right.
CAUTION
If the fluid level rises suddenly after the engine is
stopped, the air has not been completely bled. If
air bleeding is not complete, there will be abnor
-
mal noises from the pump and the flow-control
valve, and this condition could cause reduce the
life of the power steering components.
ACX01131With engine running With engine stoppedAC
Fluid level change: Within 5 mm
9. Confirm that the change in the fluid level is no more than 5 mm when the engine is stopped and
when it is running.
10.If the change of the fluid level is 5 mm or more,
the air has not been completely bled from the
system. The air bleeding procedure must be
repeated.
OIL PUMP PRESSURE TEST
M1372002300315
ACX01133
Temperature
gauge
Oil reservoir
Adapter
(MB991548)
Oil
pump Adapter
(MB991549)
AB
Shut-off valve
(fully closed)
Pressure
gauge
(MB990662)
1. Disconnect the pressure hose from the oil pump,
and then connect the following special tools.
•Power steering oil pressure gauge (MB990662)
•Power steering oil pressure gauge adapter (pump
side) (MB991548)
•Power steering oil pressure gauge adapter (hose
side) (MB991549)
2. Bleed air, then turn the steering wheel several times while the vehicle is not moving so that the
temperature of the fluid rises to approximately 50
−
60
°C.
3. Start the engine and idle it at 750 ± 100 r/min.
CAUTION
The pressure gauge shut-off valve must not
remain closed for more than 10 seconds.
4. Fully close the shut-off valve of the pressure gauge and measure the oil pump relief pressure
to confirm that it is within the standard value
range. Open it again immediately after checking
the pressure.
Standard value: 8.8 − 9.5 MPa
5. If it is not within the standard value, replace the oil pump.

AC206644AD
Camshaft position
sensor
D<4G1>
Rocker cover
AC302480AB
D
Camshaft position
sensor
Rocker cover
<4G6>
AC208654
AD
E
Vehicle speed
sensor
Idle speed
control servo

AC302481AB
FAir cleaner
assembly<4G6>Air cleaner
air flow sensor
AB
AC301754
G<4G1>
AC
Heat protector
Engine control
oxygen sensor (Front)
Engine control
oxygen sensor
(Front) connector
AC302482
G
AB
Heat protector
<4G6>
Engine control
oxygen sensor
(Front) connector
Engine control
oxygen sensor (Front)
AC501785AB
H
Horn

Outside thermo
sensor
AC206780 AE
I
Rocker cover
<4G1>
Water temperature
sensor unit
SE
NSOR
COMPONENT LOCA TIONS70-8

AC208529AD
C<4G1>Idle speed
control servo
Emission solenoid valve
(Purge control system)
AC208684
D
AD
A/T control solenoid
valve assembly connector
Inhibitor switch
A/T control solenoid
valve assembly
Transmission
assembly
DIOD E
COMPONENT LOCA TIONS70-14
DIODE
M1701 0009 0022 3
AC300441
AC301240
Diode

AD

ENGINE AND TRANSMISSION
CONFIGURATION DIAGRAMS80-12
ENGINE AND TRANSMISSION <4G1-MPI (LHD)> (CONTINUED)
AC301129AE
B-118B-101 B-102
B-113
B-114
B-115
B-116 B-117
Earth cable
Control wiring
harness
Connector colour
code
B : Black
BR : Brown
G : Green
GR : Grey
L : Blue
None : Milk white
O : Orange
R : Red
V : Violet
Y : Yellow
Connector
symbol
-101
thru
-118
B
*
B-101(2-BR)Emission solenoid valve (EGR system)
B-102(4-GR)Inlet manifold absolu te pressure sensor
B-103(6-B)Throttle body idle speed control servo
B-104(3-GR)Ignition coil 1
B-105(2-B)Emission solenoid va lve (Purge control
system)
B-107(3-B)Camshaft position sensor
B-108(3-GR)Output shaft speed sensor
B-109(3-B)Input shaft speed sensor
B-110(2-B)Back-up lamp switch
B-111(2-B)Water temperature sensor unit

ENGINE AND TRANSMISSION
CONFIGURATION DIAGRAMS80-16
ENGINE AND TRANSMISSION <4G1-MPI (RHD)> (CONTINUED)
AC301132AE
B-117B-101 B-102
B-113
B-114
B-115
B-116
Earth cable
Control wiring
harness
Connector colour
code
B : Black
BR : Brown
G : Green
GR : Grey
L : Blue
None : Milk white
O : Orange
R : Red
V : Violet
Y : Yellow
Connector
symbol
-101
thru
-118
B
*
B-101(2-BR)Emission solenoid valve (EGR system)
B-102(4-GR)Inlet manifold absolu te pressure sensor
B-103(6-B)Throttle body idle speed control servo
B-104(3-GR)Ignition coil 1
B-105(2-B)Emission solenoid va lve (Purge control
system)
B-107(3-B)Camshaft position sensor
B-108(3-GR)Output shaft speed sensor
B-109(3-B)Input shaft speed sensor
B-110(2-B)Back-up lamp switch