1990 MITSUBISHI SPYDER sensor

INTAKE AND EXHAUST Exhaust Pipe and Main Muffler
EXHAUST PIPE AND MAIN MUFFLER
REMOVAL AND INSTALLATION
Engine (Non-turbo)>
and Post-installationlUnder Cover Removal and Installation
(Refer to GROUP Cover.)
18
9.4 ,
4936,8I
6
9.4
9.4
Main muffler removal steps Catalytic converter removal steps
1. Main muffler assembly2. Gasket13. Catalytic 14. Gasket
3. Hanger
4. Tail hanger15. Catalytic converter bracket
5. Rear hanger16. Hanger protector
6. Rear floor heat protector panel17. Hanger18. Front hanger
Center exhaust pipe removal steps
7. Heated oxygen sensor connection
exhaust pipe
Hanger protector11. Hanger
12. Hanger bracket
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19. Front floor heat protector panel
Front pipe steps
20. connection
21. Front exhaust:22. Gasket

INTAKE AND EXHAUST Exhaust Pipe and Main
Engine
and Post-installation Operation
139.4
49
6
25
1
443336
33
9.4
16
9.4
--9.4
Main muffler steps
1. Main muffler assembly
2.Gasket3.Muffler cutter
4.Hanger5.Tail hanger6.Rear hanger7. Rear floor heat protector panel
Center exhaust pipe removal steps
8. Heated oxygen sensor connection
9. Center exhaust pipe10.Gasket11.Hanger protector12.Hanger13.Hanger bracket
steps
14.
converter
15. Gasket16. Catalytic converter bracket
1 7 .
18. Hanger Front .20: ‘heat panel
steps
21.
pipe22.Gasket
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15-24INTAKE AND EXHAUST Exhaust Pipe Main
Engine
Pre-removal and Post-installationlUnder Cover Removal and Installation
(Refer to GROUP Cover.)
16
13
13
6
9.4
Main muffler removal steps
1. Main muffler assembly
2.Gasket3.Muffler cutter4.Hanger5.Tail hanger6.Rear hanger
7. Rear floor heat protector panel
Center exhaust pipe removal steps
6. Heated oxygen sensor connection9. Center exhaust pipe10. Gasket
11. Hanger protector
12. Hanger
13. Center hanger
steps
14. Catalytic converter
15. Gasket
16. Front floor. heat protector panel
Front exhaust steps
1 7 . F r o n t .18. -Gasket19. Hanger20. Front hanger
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INTAKE AND EXHAUST Exhaust Pipe . .
Engine>
Post-installation OperationlUnder Cover Removal and Installation
(Refer to GROUP Cover.) ,
3.4
9.4
139.4
9.449N m
36 bs.
-59 Nm
q 2
9.4
Main muffler
removal steps
1. Main muffler assembly
2. Gasket
3. Hanger
4. Tail hanger
5. Rear hanger
6. Rear floor heat protector panel
Center exhaust pipe removal steps 7. Heated oxygen sensor
connection exhaust pipe
Hanger protector11. Hanger
12. Hanger bracket
9.49.4
1
Catalytic converter removal steps
13. Catalytic 14. Gasket15. Catalytic bracket
16. Hanger protector
17. Hanger
18. Front hanger
19. Front floor heat protector panel
II3344N m334936
Front exhaust pipe removal steps
20. Heated oxygen sensor
21. Front exhaust pipe22. Gasket
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INTAKE AND Pipe and Main
Engine (Non-turbo)>
Engine (Turbo) and
REMOVAL SERVICE POINT
HEATED OXYGEN
OXYGEN SENSER
For Engine (Non-turbo), ‘the’ exhaust threabs
must be cleaned with an 18 mm in.) 1.5
the heated oxygen sensor has been disconnected.
INSTALLATION SERVICE
HEATED OXYGEN SENSOR
OXYGEN SENSER If reusing the original sensor, with
an antiseize compound such as
New sensors have compound on do not
require an additional coating.
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CONTENTS
AUTO-CRUISE CONTROL SYSTEM
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
AUTO-CRUISE CONTROL* . . . . . . . . . . . . . . 40
GENERAL INFORMATION . . . . . . . . . . . . . . . . 7
ON-VEHICLE SERVICE. . . . . . . . . . . . . . . . . 33
Auto-cruise Control Cable Check and
Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
33
Auto-cruise Control Component Check . . . . . 37
Auto-cruise Control System Operation Check
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
35
SERVICE SPECIFICATIONS . . . . . . . . . . . . . 8
SPECIAL TOOLS . . . . . . . . . . . . . . . . . . . . . . . . 8
TROUBLESHOOTING
ENGINE (NON-TURBO)> . . . . . . . . . . . 9
TROUBLESHOOTING
(TURBO) AND ENGINE> . . . . .
EMISSION CONTROL’ SYSTEM
. . . . .
CATALYTIC . . . . . . . . . . . . . .
General Information . . . . . . . . . . . . . . . . . . 57
EVAPORATIVE EMISSION .
SYSTEM. . . . . . . . . . . . . . . .
Air Conditioning . . . . . . . . . . . . . . . . . . . 52
Component Location
. . . . . . . . . . . . . . . . . .
Engine Coolant Temperature Sensor
Intake Air Temperature Sensor . . . . . . . . . . . . 52
WARNINGS REGARDING SERVICING OF SUPPLEMENTAL RESTRA INT SYSTEM (SRS) EQUIPPED
WARNING!
(1) Improper serviceor maintenance of any component of the or any SRS-related can to injuryorcleathtoservicepersonnel (from inadvertentfiring the SRS inoperative).
(2) Service or maintenance of any SRS component or SRS-related component must be performed only
MITSUBISHI dealer.
(3) MITSUBISHI dealer personnel must thoroughly rev iew this manual, and especially its GROUP
Restraint System (SRS) and GROUP 00 Maintenance Service, before any service or maintenance of any
componentof the SRS or any SRS-related component.
NOTEJhe includes the following components: warning light, air bag module, clock components (that may have to be removed/installed in connection with or areIndicated in the table of contents by an asterisk

17-2
Evaporative Emission Canister/Air Filter/
Evaporative Emission Ventilation Solenoid
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .53
Evaporative Emission Purge Solenoid
Check. . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . .
General Information. . .. . .. . . . . . . . . . . . . . .
Purge Control System Check. . . . . . . . . . . . .
Purge Port Vacuum Check. . . . . . . . . . . . . . . .51
EXHAUST GAS (EGR)
SYSTEM. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54
Component Location. . . . . . . . . . . . . . . . . . . . .54
EGR Port Vacuum Check. . . . . . . . . . . . . . . . .56
EGR System Check. . . . . . . . . . . . . . . . . . . . . .55
EGR Valve Check. . . . . . . . . . . . . . . . . . . . . . . .55
Electric EGR Transducer Solenoid Check
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
56
General Information. . . . . . . . . . . . . . . . . . . . . .54
GENERAL INFORMATION. . . . . . . . . . . . . . .44
POSITIVE CRANKCASE VENTILATION
SYSTEM. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
Component Location. . . . . . . . . . . . . . . . . . . . .48
Crankcase Ventilation System Check. . . . . .49
General Information. . . . . . . . . . . . . . . . . . . . . .48
Positive Crankcase Ventilation Valve
Check. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .49
SERVICE SPECIFICATIONS. . . . . . . . . . . . .45
TROUBLESHOOTING’
. . . . . . . . . . . . . . . . . . .45
VACUUM HOSES. . . . . . . . . . . . . . . . . . . . . ..4 8
Vacuum Circuit Diagram. . . . . . . . . . . . . . . . . .47
Vacuum Hose Routing
. . . . . . . . . . . . . . . . . . . .46
CONTROL SYSTEM
ENGINE (TURBO) AND
ENGINE>. . . . . . . . . . . . . . . . . . . . . 6 0
CATALYTIC CONVERTER. . . . . . . . . . . . . . .89
General Information. . . . . . . . . . . . . . . . . . . . . .89
EVAPORATIVE EMISSION CONTROL
SYSTEM. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .69’
Air Conditioning Switch
. . . . . . . . . . . . . . . . . . .77
Component Location Engine (Turbo)>
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
69
Component Location Engine (Turbo)>
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
70
Evaporative Emission Canister/Fuel Tank
Pressure Relief Valve/Purge Control Valve
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .78
Evaporative Emission Purge Solenoid
Check. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .76
General Information Engine (Turbo)> G e n e r a l I n f o r m a t i o n
. . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . .70
Purge Control System Check
. . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . .71
Purge Control ‘System
(Purge Flow Check) Engine>. . . . . . .73
Purge Control Engine (Turbo)>
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Purge Port Vacuum Check. . . . . . . . . . . . . . . .75
Volume Air Flow Sensor, Engine Coolant
Temperature Sensor and Intake Air
Temperature Sensor. . . . . . . . . . . . . . . . . . . . . . .77
RECIRCULATION (EGR)
.... . .. . . . . . . . . . . . . . . . . . . . . . . .81
Component Location. . . . . . . . . . . . . . . . . . . . .82
EGR Port Vacuum Check . . . . . . . . . . . . . . . . .86
EGR Solenoid Check Engine (Turbo)>
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
87
EGR Solenoid Check Engine>. . . . . .
EGR System Check . . . . . . . . . . . . . . . . . .
EGR Valve Check. . . . . . . . . . . . .. . .
General Information... . . . . . . . . . . . . .....81
Vacuum Control Valve Check
. . . . . . . . .
.......................................
POSITIVE CRANKCASE VENTILATION
SYSTEM
. . . . . . . ... . .. . . . . . . . . . . . . . . . . 65
Component Location. . . . . . . . . . . . .. . . . . . . . .66
Crankcase Ventilation. System . .67
General Information
. . . .. . . . . ... . ........
Positive Crankcase Ventilation Valve
Check. . . . . . . . . . . . . . . . . . . . . ... . ............
SERVICE SPECIFICATIONS. .. . . . . . . . . 60
SPECIAL TOOL . . . . . . . . . . . . . . . . . . . . . . .
. . .. .
HOSES
. . . . ..
. . . . . . . . . . . . . . . . . . . . .,
Circuit Diagram.. . . . . . . . . . . . . . . . . . ,
Vacuum Hose Routing. . . . . . . ...... . . . 6 1
ENGINE CONTROL
3
ACCELERATOR
......
GENERAL INFORMATION . . . . . .. . . . . . . . . .3
ON-VEHICLE SERVICE. . . . . . . . . . . .4
Accelerator Cable Check and
Adjustment. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SERVICE SPECIFICATION. . . . . . . . . . . . . . .3
. ... . . . . ...3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
69

AND EMISSION CONTROL Auto-cruise Control System
GENERAL INFORMATION
By using the auto-cruise control, the driver can
drive at the speed he/she likes [in a range of
mately km/h (25-84 mph) Engine
Engine
(Non-turbo)>Powertrain
(Non-turbo)>, km/h (25-124 mph)
Engine (Turbo) and Engine>] without
ing the accelerator pedal.
assemblv
sensor
Input speedsensorsensor
Control switch
Reservoirassembly
Transaxle rangeswitch
Engine (Turbo)
and
Engine> C o n t r o l s w i t c h ,.
Actuator
Auto-cruise control indicator
Main switch
,Stop light switch
Park/Neutralswitch
Clutch pedal position
switch
sensor
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