Page 817 of 2103
EVAPORATIVE EMISSION CANISTER/FUEL TANK PRESSURE
RELIEF VALVE/PURGE CONTROL VALVE
REMOVAL AND INSTALLATION
Engine (Turbo)>
Pre-removal and Post-installation OperationBattery Removal and Installation
Removal steps
1. Battery bracket
2. Shift and con-
nection3. Vapor hose4. Connector5. Vapor hose 6. Fuel tank pressure relief 7. Vapor hose 8. Vapor hose
9. Check valve
1 0 . C l a m p ’
hose
12. Purge control
13. Evaporative canister
14. Evaporative emission canister
e r a s s e m b l y
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Page 818 of 2103
ENGINE AND EMISSION CONTROL Engine (Turbo) and Engine>
Engine>
and Post-installation OperationSplash Shield (R.H.) Removal and installation (Re-
fer to GROUP 42 Fender)
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Removal steps
1. Evaporative emission
2.Vent hose3.Vent hose4.Connector5.Vent hose6.Vapor hose7.Connector8. Evaporative emission purge hose
9.Vapor hose
3
I
10.Vent hose11.Filter bracket12.Air filter
13. Evaporative emission canister up-
per bracket
14. Evaporative
15. emission
Page 819 of 2103
Evaporative
emission
canister side
Rubber hose
F U E L T A N K ,
I N S T A L L A T I O N
Install the fuel relief
on the left.,
,
I..- ,
I N S P E C T I O N
FUEL TANK PRESSURE RELIEF VALVE SIMPLE .,
WARNING
To avoid bodily injury, do not breathe fuel
Attach a clean hose and tank
Inspection procedure,
Lightly blow from inlet A i r p a s s e s
(fuel tank side).slight feeling of
Lightly blow from outlet side.Air
resistance, , .
EVAPORATIVE EMISSION VENTILATION SOLENOID
CHECK
(1) Connect a hand vacuum pump to nipple (A) of the
solenoid.
Check airtightness by applying a vacuum with voltag e
applied directly from the ‘battery to
evaporative
emission ventilation solenoid. and
(3) Measure the resistance between the terminals of the
solenoid.
Standard value: 17-21 (at
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Page 820 of 2103

(Turbo) and Engine>
EXHAUST GAS RECIRCULATION
GENERAL INFORMATION
The exhaust gas recirculation (EG system lowers
the nitrogen oxide
emission level. When the
air/fuel mixture combustion temperature is high,
a large quantity of nitrogen oxides is gener-
ated in the combustion Therefore, this
system recirculates part of emission gas from the
exhaust port of the cylinder head to the combustion
OPERATION
When the engine coolant is low, when
the engine is at idle or when a wide open throttle
operation is performed, the EGR valve is kept
closed, achieving no EGR.
The manifold differential pressure sensor is locate d
in the intake manifold plenum. This sensor detects
variations in the manifold pressure when
the EGR solenoid is momentarily operated. If the
manifold negative pressure the EGR sys-
tem is normal.
SYSTEM DIAGRAM
Engine (Turbo)>
(EGR) SYSTEM17300520205
chamber through the intake manifold to decrease
the mixture combustion temperature, result-
ing in reduction of
The EGR flow rate is controlled by the EGR valve
so as not to decrease the
In normal vehicle operation performed after warm-
ing up of the engine, the EGR valve is opened
to carry out EGR.
The ECM uses this to check the operation of the, EGR system. If a problem is found, the check en-’
indicator light illuminates to warn
the driver that a problem has occurred.
EGR valve
relay
EGRsolenoid
Engine control
module
Isensor
Engine coolant
temperature sensor
sensor
Manifold differential
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pressure sensor,
Page 821 of 2103
ENGINE AND EMISSION CONTROL Engine (Turbo) end
Engine>
COMPONENT LOCATION
Engine (Turbo)>
EGR solenoid
Manifold differential pressure sensor
relayEngine
module
EGR valve
Page 822 of 2103
Engine (Turbo) and Engine>
Engine>
EGR solenoidEGR valve
Manifold differential pressure
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Page 823 of 2103

Emission Control
ENGINE AND EMISSION CONTROL Engine
EGR SYSTEM CHECK17300260220
1. the vacuum hose (green stripe Engine
(Turbo)>, white stripe
Engine>) from the sole-
noid, and then connect a hand vacuum pump via the
three-way terminal.
2.Regarding the engine in cold and hot conditions, ch eck
the condition of vacuum when a rapid racing has bee n
performed by opening the throttle valve quickly.
When engine is cold [Engine coolant temperature:
or less]
Throttle valve
Open quickly Normal vacuum condition
No vacuum will generate
(remained as barometric pressure).
I
When engine is hot
[Engine coolant or
Throttle valve vacuum condition
Open quicklyIt will momentarily rise over
(3.9
3. Disconnect the three-way terminal.
4. Connect the hand vacuum pump directly to the EGR
valve.
5.Check whether the engine stalls or if the idle is u nstable
when a vacuum of 27
(7.9 or higher is applied
while idling.
VACUUM CONTROL VALVE CHECK
Engine>17300270025
1.Disconnect the vacuum hose (white stripe) from the vacu-
um control valve and connect the hand vacuum pump
to the vacuum control valve.
2. Put the blind plug to the removed vacuum hose.
3. Start the engine and run at idle.
4. Check the vacuum condition.
Engine condition Normal vacuum conditionI
IdlingApprox. 23 (6.7
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Page 824 of 2103
(Turbo) and Engine>
EGR VALVE CHECK
1.Remove the EGR valve and inspect for sticking, carbon
deposits, etc. If contaminants are found, clean the valve
with a suitable solvent so it will seat correctly.
2. Connect a hand vacuum pump to the EGR valve.
3. Apply 67
(20 of vacuum, and check to be
sure that the vacuum is maintained.
4. Apply vacuum according to the
below and check
the passage of air by blowing through either side o f the
EG
passages.
Vacuum Passage of air
5.3 (1.6 or lessAir does not blow out of op-
posite passage.
27 (7.9 or more
Air blows out of opposite
passage.,
5.Replace the gasket, and tighten the valve to the sp ecified
torque.
Specified torque: 22 Nm (16
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