idle air control MITSUBISHI LANCER 2006 Workshop Manual

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.

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 STEERING37-14
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

CENTRALIZED JUNCTION
CIRCUIT DIAGRAMS90-18
CENTRALIZED JUNCTION
M1901000301477
FUSIBLE LINK AND FUSE
ENGINE COMPARTMENT
No.Power supply circuitNameRated
capacity (A)Housing
colourLoad circuit
1Battery/ Alternator
(Fusible link No.26)Fusible
link60YellowFuse No.15, 16, 18, 19, 20 (in junction
block) circuit
250RedFan controller
360YellowABS-ECU
440GreenIgnition switch circuit
530PinkPower window main switch and power
window sub switch
6Fuse15BlueFront fog lamp, front fog lamp
indicator lamp, front fog lamp relay
and spare connector (for front fog
lamp)
710RedHorn relay and horn
820YellowAir cleaner air flow sensor, camshaft
position sensor, emission solenoid
valve (EGR system), emission
solenoid valve (purge control system),
engine-A/T-ECU, engine-ECU, engine
control oxygen sensor, engine control
relay, engine crank angle sensor, fan
control relay, fuel injector, ignition coil
relay, immobilizer-ECU and throttle
body idle speed control servo
910RedA/C compressor
1015BlueABS-ECU, engine-A/T-ECU, high
mount stop lamp and rear combination
lamp
1115BlueAccessory socket
127.5BrownAlternator
1310RedETACS-ECU, front turn signal lamp,
rear combination lamp, side turn
signal lamp and turn signal indicator
lamp
1420YellowA/T control solenoid valve assembly
and engine-A/T-ECU
1515BlueFuel pump
16Front-ECU
(Headlamp relay: HI)10RedHeadlamp (RH)
1710RedHeadlamp (LH) and high beam
indicator lamp
18Front-ECU
(Headlamp relay: LO)10RedHeadlamp (RH)
1910RedHeadlamp (LH), headlamp assembly
and headlamp levelling switch

ENGINE CONTROL SYSTEM
CIRCUIT DIAGRAMS90-52
ENGINE CONTROL SYSTEM <4G1-M/T (LHD)> (CONTINUED)
CHARGING
SYSTEM
·MANUAL AIR
CONDITIONER ·MANUAL AIR
CONDITIONER·COOLING
SYSTEMTHROTTLE
BODY
IDLE SPEED
CONTROL
SERVO
ENGINE-ECU
ENGINE CONTROL
DETONATION
SENSOR
IMMOBILIZER
SYSTEMIGNITION
SYSTEM
FRONT
SIDE·AUTOMATIC AIR
CONDITIONER ·AUTOMATIC AIR
CONDITIONER

ENGINE CONTROL SYSTEM
CIRCUIT DIAGRAMS90-58
ENGINE CONTROL SYSTEM <4G1-M/T (RHD)> (CONTINUED)
CHARGING
SYSTEM
·MANUAL AIR
CONDITIONER ·MANUAL AIR
CONDITIONER·AUTOMATIC AIR
CONDITIONER ·AUTOMATIC AIR
CONDITIONER
·COOLING
SYSTEMTHROTTLE
BODY
IDLE SPEED
CONTROL
SERVO
ENGINE-ECU
ENGINE CONTROL
DETONATION
SENSOR
IMMOBILIZER
SYSTEMIGNITION
SYSTEM
FRONT
SIDEFRONT
SIDE

ENGINE CONTROL SYSTEM
CIRCUIT DIAGRAMS90-64
ENGINE CONTROL SYSTEM <4G1-A/T (LHD)> (CONTINUED)
CHARGING
SYSTEM
·MANUAL AIR
CONDITIONER ·MANUAL AIR
CONDITIONER·AUTOMATIC AIR
CONDITIONER ·AUTOMATIC AIR
CONDITIONER
·COOLING
SYSTEMTHROTTLE
BODY IDLE
SPEED
CONTROL
SERVO
ENGINE-A/T-ECU
ENGINE CONTROL
DETONATION
SENSOR
IMMOBILIZER
SYSTEMIGNITION
SYSTEM
FRONT
SIDE

ENGINE CONTROL SYSTEM
CIRCUIT DIAGRAMS90-70
ENGINE CONTROL SYSTEM <4G1-A/T (RHD)> (CONTINUED)
CHARGING
SYSTEM
·MANUAL AIR
CONDITIONER ·MANUAL AIR
CONDITIONER·AUTOMATIC AIR
CONDITIONER ·AUTOMATIC AIR
CONDITIONER
·COOLING
SYSTEMTHROTTLE
BODY
IDLE SPEED
CONTROL
SERVO
ENGINE-A/T-ECU
ENGINE CONTROL
DETONATION
SENSOR
IMMOBILIZER
SYSTEMIGNITION
SYSTEM
FRONT
SIDEFRONT
SIDE

ENGINE CONTROL SYSTEM
CIRCUIT DIAGRAMS90-76
ENGINE CONTROL SYSTEM <4G6-M/T (LHD)> (CONTINUED)
CHARGING
SYSTEM
·MANUAL AIR
CONDITIONER ·MANUAL AIR
CONDITIONER·AUTOMATIC AIR
CONDITIONER ·AUTOMATIC AIR
CONDITIONER
·COOLING
SYSTEMTHROTTLE
BODY
IDLE SOEED
CONTROL
SERVO
ENGINE-ECU
ENGINE CONTROL
DETONATION
SENSOR
IMMOBILIZER
SYSTEMIGNITION
SYSTEM
FRONT
SIDE