Mitsubishi Lancer Evolution 7. Manual — part 235
17-1
ENGINE AND
EMISSION
CONTROL
CONTENTS
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Emission Control Device Reference
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Positive Crankcase Ventilation System Check
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Purge Control Solenoid Valve Check
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EXHAUST GAS RECIRCULATION (EGR)
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Exhaust Gas Recirculation (EGR) Control System
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EGR Control Solenoid Valve Check
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ENGINE AND EMISSION CONTROL -
Engine Control System
17-2
ENGINE CONTROL SYSTEM
GENERAL INFORMATION
A cable-type accelerator mechanism and a
suspended-type pedal have been adopted.
SERVICE SPECIFICATIONS
Items
Standard value
Accelerator cable play mm
1 - 2
Engine idle speed r/min
850 ± 50
Engine idle speed r/min
850 ± 50
ON-VEHICLE SERVICE
ACCELERATOR CABLE CHECK AND
ADJUSTMENT
1. Turn A/C and lamps OFF.
Inspect and adjust at no load.
2. Warm engine until stabilized at idle.
3. Confirm idle speed is at prescribed value.
Standard value: 850 ± 50 r/min
4. Stop engine (ignition switch OFF).
5. Confirm there are no sharp bends in accelerator cable.
6. Check inner cable for correct slack.
Standard value: 1 - 2 mm
7. If there is too much slack or no slack, adjust play by
the following procedures.
(1) Loosen the adjusting bolt to release the cable.
(2) Move the plate until the inner cable play is at the
standard value, and then tighten the adjusting bolt
to the specified torque.
Tightening torque: 5.0 ± 1.0 N·m
plate
Adjusting bolt
ENGINE AND EMISSION CONTROL -
Engine Control System
17-3
ACCELERATOR CABLE AND PEDAL
REMOVAL AND INSTALLATION
Post-installation Operation
Accelerator Cable Adjustment (Refer to P.17-2.)
1
2
12
2
4
<L.H. drive vehicles>
<R.H. drive vehicles>
6
5
7
5
3
4
6
7
1
3
9
9
8
10
11
8
10
11
12
5.0 ± 1.0 N·m
5.0 ± 1.0 N·m
12 ± 2 N·m
12 ± 2 N·m
10 ± 2 N·m
6
6
Accelerator pedal removal steps
1. Accelerator cable assembly connec-
tion (Accelerator pedal side)
2. Accelerator pedal assembly
3. Pedal pad
4. Push-on spring nut
5. Accelerator arm assembly
6. Bushing
7. Spring
8. Stopper
9. Accelerator pedal bracket
Accelerator cable removal steps
1. Accelerator cable assembly
(Accelerator pedal side)
10. Accelerator cable assembly connec-
tion (Throttle body side)
11. Accelerator cable assembly
Accelerator pedal stopper removal
12. Accelerator pedal stopper
ENGINE AND EMISSION CONTROL -
Emission Control System
17-4
EMISSION CONTROL SYSTEM
GENERAL INFORMATION
The emission control system consists of the following subsystems:
D
Crankcase emission control system
D
Evaporative emission control system
D
Exhaust emission control system
Items
Name
Specification
Crankcase emission
control system
Positive crankcase ventilation (PCV) valve
Variable flow type
(Purpose: HC reduction)
Evaporative emission
control system
Canister
Purge control solenoid valve
Check valve
Equipped
Duty cycle type solenoid valve
Equipped
(Purpose: HC reduction)
Exhaust
emission
control system
Air-fuel ratio control device - MPI system
Oxygen sensor feedback type
(Purpose: CO, HC, NOx reduction)
Exhaust gas recirculation system
D
EGR valve
D
EGR control solenoid valve
Equipped
Single type
Duty cycle type solenoid valve
(Purpose: NOx reduction)
Catalytic converter
Monolith type
(Purpose: CO, HC, NOx reduction)
EMISSION CONTROL DEVICE REFERENCE TABLE
Related parts
Crankcase
emission
control
system
Evaporative
emission
control
system
Air/fuel
ratio
control
system
Catalytic
converter
Exhaust
gas
recirculation
system
Reference
page
PCV valve
×
17-9
Purge control solenoid valve
×
17-12
Check valve
×
17-12
MPI system component
×
×
GROUP 13A
Catalytic converter
×
17-19
EGR valve
×
17-15
EGR control solenoid valve
×
17-16
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