sensor MITSUBISHI LANCER EVOLUTION IV 1998 Service Manual

INTAKE AND EXHAUST – Exhaust Pipe and Muffler15-14
EXHAUST PIPE AND MUFFLER
REMOVAL AND INSTALLATION
Unit: Nm {kgf
m}
15
44 {4.5}
49 {5.0}
34 {3.5}
5 {0.5}13 {1.3}
14
16
7 5 13
172 1
3
46 18
8
9 12
10 11
34 {3.5}
19 {1.9}49 {5.0}
Hanger mounting bolt tightening
torque
13 {1.3}
3, 9, 18
93 3 9
Main muffler removal steps
1. Bolt
2. Main muffler
3. Hanger
Center exhaust pipe removal steps
1. Bolt
4. Spring
5. Heat protector
6. Self-locking nut
7. Hanger bracket
8. Center exhaust pipe
9. Hanger
10. Protector11. High-temperature sensor
12. Bolt
13. Catalytic converter
14. Front floor heat protector panel
Front exhaust pipe removal steps
4. Spring
5. Heat protector
12. Bolt
15. Self-locking nut
16. Front exhaust pipe
17. Front exhaust pipe bracket
18. Hanger

16-1
ENGINE
ELECTRICAL
CONTENTS
CHARGING SYSTEM 2. . . . . . . . . . . . . . . .
ALTERNATOR 2. . . . . . . . . . . . . . . . . . . . . . . . . . .
IGNITION SYSTEM 4. . . . . . . . . . . . . . . . . .
ON-VEHICLE SERVICE 4. . . . . . . . . . . . . . . . . . .
1. Ignition Coil with Built-in Power Transistor
Check 4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2. Spark Plug Check, Cleaning, and
Replacement 4. . . . . . . . . . . . . . . . . . . . . . . . . .
CAMSHAFT POSITION SENSOR AND
CRANK ANGLE SENSOR
5 . . . . . . . . . . . . .

ENGINE ELECTRICAL – Ignition System16-5
CAMSHAFT POSITION SENSOR AND CRANK ANGLE SENSOR
REMOVAL AND INSTALLATION
Pre-removal and Post-installation Operation
Timing Belt Removal and Installation
(Refer to GROUP 11.)
Unit: Nm {kgf
m}
49 {5.0}
5
9 {0.9}9 {0.9}
9 {0.9} 39 {4.0} 3 {0.3}
2
3
41
Removal steps
1. Camshaft position sensor
2. Center cover

A3. Power steering oil pump4. Power steering oil pump bracket
5. Crank angle sensor
REMOVAL SERVICE POINT

APOWER STEERING OIL PUMP REMOVAL
Remove the power steering oil pump with hose from the power
steering oil pump bracket.
NOTE
String up the oil pump which has been removed onto a location
that does not hamper removal and installation of the power
steering oil pump bracket.

ENGINE EMISSION CONTROL –
Engine Control System /
Emission Control System 17-2
ENGINE CONTROL SYSTEM
SERVICE SPECIFICATIONS
ItemsStandard value
Idle speed rpm850 ± 50
EMISSION CONTROL SYSTEM
ON-VEHICLE SERVICE
SYSTEM CONFIGURATION DIAGRAM
Canister
Check
valve
Throttle body
Fuel pressure control
valve
Fuel pressure regulator
PCV valve
AirInjector
High temperature sensor*
*: EVOLUTION-IV only

ENGINE EMISSION CONTROL – Emission Control System 17-4
CATALYTIC CONVERTER
REMOVAL AND INSTALLATION
Unit: Nm {kgf
m}
3
2
154
49 {5.0}
5 {0.5}19 {1.9}
49 {5.0}
49 {5.0}
34 {3.5}13 {1.3}
Removal steps
1. Spring
2. Heat protector
3. Front exhaust pipe4. High temperature sensor

5. Catalytic converter

MANUAL TRANSMISSION – Transmission Assembly22A-7
TRANSMISSION ASSEMBLY
REMOVAL AND INSTALLATION
Pre-removal Operation
(1) Transmission Oil Draining (Refer to P.22A-3.)
(2) Transfer Oil Draining (Refer to P.22A-3.)
(3) Under Cover Removal
(4) Front Exhaust Pipe Removal (Refer to GROUP 15.)
(5) Battery and Battery Tray Removal
(6) Air Cleaner Assembly RemovalPost-installation Operation
(1) Air Cleaner Assembly Installation
(2) Battery and Battery Tray Installation
(3) Front Exhaust Pipe Installation
(Refer to GROUP 15.)
(4) Under Cover Installation
(5) Transfer Oil Supplying (Refer to P.22A-3.)
(6) Transmission Oil Supplying (Refer to P.22A-3.)
(7) Shift Lever Operation Check
(8) Speedometer Operation Check
1
2
34 5
6
7
8 8
Unit: Nm {kgfm}
49 {5.0} 98 {10.0}*
88 {9.0}19 {1.9}
48 {4.9}19 {1.9}
Removal steps
1. Shift cable and select cable con-
nection
2. Backup lamp switch connector
3. Vehicle speed sensor connector
A4. Starter motor
5. Clutch release cylinder connection
6. Transmission assembly upper part
coupling bolts7. Transmission mount bracket
8. Transmission mount stopper

Engine assembly supporting
Caution
Mounting locations marked by * should be
provisionally tightened, and then fully tightened
when the body is supporting the full weight of the
engine.

MANUAL TRANSMISSION – Transmission Assembly22A-8
16 18
Unit: Nm {kgfm}
52 {5.3}*
19
17
9
10
12
1315
1214
69 {7.0} 69 {7.0} 15 – 33
{1.5 – 3.4} 39 {4.0}59 – 71
{6.0 – 7.2} 26 – 33
{2.7 – 3.4}48 {4.9}
52 {5.3}*
Lifting up of the vehicle
9. Stabilizer bar connection
10. Wheel speed sensor cable connec-
tion
11. Brake hose clamp
12. Tie rod end connection
13. Lower arm ball joint connection
A
Clutch release bearing connection
14. Centermember assembly
B15. Drive shaft connection
B16. Drive shaft connection

Strut assembly
(Refer to GROUP 33A.)C17. Output shaft

Air hose A
(Refer to GROUP 15 – Intercooler.)
18. Transmission assembly lower part
coupling bolts
19. Transmission assembly
Caution
Mounting locations marked by * should be
provisionally tightened, and then fully tightened
when the body is supporting the full weight of the
engine.

FRONT AXLE – Axle Hub and Knuckle26-3
AXLE HUB AND KNUCKLE
REMOVAL AND INSTALLATION
Post-installation Operation

Check the Dust Cover for Cracks or Damage by
Pushing it with Finger.
1
23
45 6 7
8
910
1112
13
Unit: Nm {kgf
m}
88 {9.0} 108 – 127
{11.0 – 13.0}
90 – 110
{9.2 – 11.2}
15 – 33
{1.5 – 3.4}177 – 275
{18.0 – 28.0} 25 {2.6}
25 {2.6}
9 {0.9}
113 {11.5}
Removal steps
1. Front speed sensor

A2. Caliper assembly
3. Brake disc
4. Split pin
BA5. Drive shaft nut
6. Front hub assembly
7. Dust shield
8. Connection for lower arm ball joint
9. Split pin
C10. Connection for tie rod end
D11. Front drive shaft
12. Front strut mounting bolt
13. KnuckleCaution
(1) For vehicles with AYC, be careful when handling
the pole piece at the tip of the speed sensor
so as not to damage it by striking against other
parts.
(2) For vehicles with AYC, be careful not to damage
the rotors installed to B.J. outer race during
removal and installation of the drive shaft.

27-1
REAR AXLE
CONTENTS
SERVICE SPECIFICATIONS 2. . . . . . . . . . . . . .
LUBRICANT 2. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SEALANT 2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SPECIAL TOOLS 3. . . . . . . . . . . . . . . . . . . . . . . .
TROUBLESHOOTING 5. . . . . . . . . . . . .
ON-VEHICLE SERVICE
27. . . . . . . . . . . . . . .
1. Rear Axle Total Backlash Check 27. . . . . . .
2. Gear Oil Level Check 27. . . . . . . . . . . . . . . .
3. Gear Oil Change 28. . . . . . . . . . . . . . . . . . . . .
4. Fluid Level Check 29. . . . . . . . . . . . . . . . . . . .
5. Bleeding 29. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6. Differential Carrier Oil Seal
Replacement 30. . . . . . . . . . . . . . . . . . . . . . . . .
7. Speed Sensor Output Voltage
Measurement 31.
8. Action When Battery Runs Out 32. . . . . . . .
REAR HUB ASSEMBLY 33. . . . . . . . . . . . . . . .
KNUCKLE 35. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
DRIVE SHAFT 36. . . . . . . . . . . . . . . . . . . . . . . . .
DIFFERENTIAL CARRIER
39.
DIFFERENTIAL CARRIER
41. . . . . . . . . . . . . . . . . . .
TORQUE TRANSFER DIFFERENTIAL
43. . . . . . . . . . . . . . .
LSD CASE ASSEMBLY
46. . . . . . . . . . .
HYDRAULIC UNIT
50. . . . . . . . . . . . . . .
SENSOR RELAY
52. . . . . . . . . . . . . . .
AYC-ECU 53. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

REAR AXLE – Troubleshooting 27-6
3. INSPECTION CHART FOR DIAGNOSIS CODE
Diagnosis
code No.Diagnosis itemsRef. page
12Power supply voltage (valve power supply) system (open- or short-circuit)27-7
21FR wheel speed sensor system (open- or short-circuit)27-7
22FL wheel speed sensor system (open- or short-circuit)27-7
23RR wheel speed sensor system (open- or short-circuit)27-7
24RL wheel speed sensor system (open- or short-circuit)27-7
25Wrong-diameter tire27-9
26Faulty wheel speed sensor27-10
31Steer sensor (ST-1, ST-2, ST-N) system (open-circuit)27-11
32Steer sensor (ST-N) system (short-circuit)27-11
33Steer sensor (ST-N) system27-12
34Steer sensor (ST-1, ST-2) system (short-circuit)27-12
41TPS system (open- or short-circuit)27-13
51Longitudinal acceleration sensor system (open- or short-circuit)27-13
52Longitudinal acceleration sensor27-14
56Lateral acceleration sensor system (open- or short-circuit)27-13
61Stop lamp switch system (open-circuit)27-14
65ABS monitor system (open-circuit or defective ABS)27-15
71Proportioning valve system (open- or short-circuit)27-15
72Directional control valve (right) system (open- or short-circuit)27-16
73Directional control valve (left) system (open- or short-circuit)27-17
81AYC relay system (open- or short-circuit)27-18
82Electric pump system27-19
83Electric pump system27-20