Mitsubishi Pajero Pinin. Manual — part 163
ENGINE AND EMISSION CONTROL –
Emission Control System
17-3
VACUUM CIRCUIT DIAGRAM
To
combustion
chamber
Intake manifold
Throttle body
From air
cleaner
EGR control
solenoid
valve (ON:
OPEN)
Vacuum hose colour
B: Black
R: Red
Canister
M
EVAPORATIVE EMISSION CONTROL
SYSTEM
PURGE CONTROL SYSTEM CHECK
1.
Disconnect the vacuum hose (black) from the intake
manifold and connect it to a hand vacuum pump.
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 condition
Normal condition
At idle
Vacuum is maintained
3,000 r/min
When engine is hot
(Engine coolant temperature: 80
C or higher)
Engine condition
Normal condition
At idle
Within 4 minutes
after the engine
has been started
Vacuum is maintained
3,000 r/min
Within 3 minutes
after the engine
has been started
Vacuum will leak.
Plug
Vacuum
hose
(black)
ENGINE AND EMISSION CONTROL –
Emission Control System
17-4
PURGE PORT VACUUM CHECK
1.
Disconnect the vacuum hose (black) from the intake
manifold purge vacuum nipple and connect a hand vacuum
pump to the nipple.
2.
Start the engine and check that the vacuum remains fairly
constant after racing the engine.
NOTE
If vacuum changes, it is possible that the intake manifold
purge port may be clogged and require cleaning.
PURGE CONTROL SOLENOID VALVE CHECK
NOTE
When disconnecting the vacuum hose, always make a mark
so that it can be reconnected at original position.
1.
Disconnect the vacuum hose (black stripe, red stripe) from
the solenoid valve.
2.
Disconnect the harness connector.
3.
Connect a hand vacuum pump to nipple (A) of the solenoid
valve (refer to the illustration at left).
4.
Check airtightness by applying a vacuum with voltage
applied directly from the battery to the purge control
solenoid valve and without applying voltage.
Battery voltage
Normal condition
Applied
Vacuum leaks
Not applied
Vacuum maintained
5.
Measure the resistance between the terminals of the
solenoid valve.
Standard value: 30 – 34
Ω
(at 20
C)
Purge port
vacuum
nipple
Engine r/min
Vacuum
A
B
B
Battery
17-1
ENGINE AND
EMISSION
CONTROL
CONTENTS
ENGINE CONTROL SYSTEM
2
. . . . . . . . . . . .
GENERAL
2
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Outline of Changes
2
. . . . . . . . . . . . . . . . . . . . . . . . .
SERVICE SPECIFICATION
2
. . . . . . . . . . . . . . . .
ON-VEHICLE SERVICE
2
. . . . . . . . . . . . . . . . . . .
Accelerator Cable Check and Adjustment
<4G9-MPI>
2
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
ACCELERATOR CABLE AND PEDAL
3
. . . . . .
EMISSION CONTROL SYSTEM
<MPI>
4
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
GENERAL
4
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Outline of Changes
4
. . . . . . . . . . . . . . . . . . . . . . . . .
GENERAL INFORMATION
4
. . . . . . . . . . . . . . . .
SERVICE SPECIFICATIONS
5
. . . . . . . . . . . . . .
VACUUM HOSE
5
. . . . . . . . . . . . . . . . . . . . . . . . . .
Vacuum Hose Piping Diagram
5
. . . . . . . . . . . . . . . .
Vacuum Circuit Diagram
6
. . . . . . . . . . . . . . . . . . . . .
Vacuum Hose Check
6
. . . . . . . . . . . . . . . . . . . . . . . .
Vacuum Hose Installation
6
. . . . . . . . . . . . . . . . . . . .
CRANKCASE EMISSION CONTROL
SYSTEM
7
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
System Diagram
7
. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Component Location
7
. . . . . . . . . . . . . . . . . . . . . . . .
EVAPORATIVE EMISSION CONTROL
SYSTEM
8
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
General Information
8
. . . . . . . . . . . . . . . . . . . . . . . . .
System Diagram
8
. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Component Location
8
. . . . . . . . . . . . . . . . . . . . . . . .
Purge Control System Check
9
. . . . . . . . . . . . . . . .
Purge Port Vacuum Check
9
. . . . . . . . . . . . . . . . . . .
Purge Control Solenoid Valve Check
10
. . . . . . . .
EXHAUST GAS RECIRCULATION (EGR)
SYSTEM
11
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
General Information
11
. . . . . . . . . . . . . . . . . . . . . . . .
Operation
11
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
System Diagram
11
. . . . . . . . . . . . . . . . . . . . . . . . . . .
Component Location
11
. . . . . . . . . . . . . . . . . . . . . . .
Exhaust Gas Recirculation (EGR) Control
System Check
12
. . . . . . . . . . . . . . . . . . . . . . . . . . .
EGR Valve Check
12
. . . . . . . . . . . . . . . . . . . . . . . .
EGR Port Vacuum Check
13
. . . . . . . . . . . . . . . . . .
EGR Control Solenoid Valve Check
13
. . . . . . . . .
CATALYTIC CONVERTER
14
. . . . . . . . . . . . . . .
ENGINE AND EMISSION CONTROL –
Engine Control System
17-2
ENGINE CONTROL SYSTEM
GENERAL
OUTLINE OF CHANGES
The following service procedures have been established due to the addition of vehicles with 4G9-MPI
engine. The other contents are the same as the 4G9-GDI engine.
SERVICE SPECIFICATION
Items
Standard value
Accelerator cable play mm
1 – 2
ON-VEHICLE SERVICE
ACCELERATOR CABLE CHECK AND
ADJUSTMENT <4G9-MPI>
1.
Check the accelerator cable play when the accelerator
pedal is released.
Standard value: 1 – 2 mm
2.
If the play is not within the standard value, turn the adjusting
nut to adjust the play to the standard value.
Adjusting nut
Нет комментариевНе стесняйтесь поделиться с нами вашим ценным мнением.
Текст