Plug MITSUBISHI 380 2005 User Guide

16-1
GROUP 16
ENGINE
ELECTRICAL
CONTENTS
CHARGING SYSTEM . . . . . . . .
16-2
GENERAL DESCRIPTION . . . . . .
16-2
CHARGING SYSTEM DIAGNOSIS16-3
SPECIAL TOOL . . . . . . . . . . . . . . .16-6
ON-VEHICLE SERVICE. . . . . . . . .16-7
ALTERNATOR OUTPUT WIRE VOLTAGE
DROP TEST . . . . . . . . . . . . . . . . . . . . . 16-7
OUTPUT CURRENT TEST . . . . . . . . . . 16-8
REGULATED VOLTAGE TEST . . . . . . . 16-10
WAVE PATTERN CHECK USING AN
OSCILLOSCOPE . . . . . . . . . . . . . . . . . . 16-11
ALTERNATOR ASSEMBLY . . . . .16-14
REMOVAL AND INSTALLATION . . . . . 16-14
DISASSEMBLY AND ASSEMBLY. . . . . 16-15
INSPECTION . . . . . . . . . . . . . . . . . . . . . 16-17
STARTING SYSTEM . . . . . . . . .16-20
GENERAL DESCRIPTION . . . . . .
16-20
STARTING SYSTEM DIAGNOSIS . . . . 16-21
STARTER MOTOR ASSEMBLY . .16-23
REMOVAL AND INSTALLATION . . . . . 16-23
INSPECTION . . . . . . . . . . . . . . . . . . . . . 16-24
DISASSEMBLY AND ASSEMBLY. . . . . 16-26
INSPECTION . . . . . . . . . . . . . . . . . . . . . 16-28
IGNITION SYSTEM . . . . . . . . . . . . . .16-30GENERAL DESCRIPTION . . . . . . .
16-30
SPECIAL TOOLS . . . . . . . . . . . . . .16-30
ON-VEHICLE SERVICE . . . . . . . . .16-31
KNOCK CONTROL SYSTEM CHECK . . 16-31
IGNITION COIL CHECK. . . . . . . . . . . . . 16-31
SPARK PLUG TEST . . . . . . . . . . . . . . . 16-32
SPARK PLUG CHECK AND CLEANING16-32
CAMSHAFT POSITION SENSOR CHECK16-32
CRANKSHAFT POSITION SENSOR
CHECK . . . . . . . . . . . . . . . . . . . . . . . . . . 16-32
IGNITION COIL . . . . . . . . . . . . . . . .16-33
REMOVAL AND INSTALLATION . . . . . 16-33
CAMSHAFT POSITION SENSOR .16-34
REMOVAL AND INSTALLATION . . . . . 16-34
CRANKSHAFT POSITION SENSOR16-35
REMOVAL AND INSTALLATION . . . . . 16-35
KNOCK SENSOR . . . . . . . . . . . . . .16-36
REMOVAL AND INSTALLATION . . . . . 16-36
SPECIFICATIONS . . . . . . . . . . 16-38
FASTENER TIGHTENING
SPECIFICATIONS . . . . . . . . . . . . .
16-38
GENERAL SPECIFICATIONS . . . .16-38
SERVICE SPECIFICATIONS . . . . .16-39

IGNITION SYSTEM
ENGINE ELECTRICAL16-31
ON-VEHICLE SERVICE
KNOCK CONTROL SYSTEM CHECKM1163001800081
Check the knock sensor circuit if diagnostic trouble code, No.
P0325 is shown.
Refer to GROUP 13B, Multiport Fuel Injection (MPI)
Multiport
Fuel Injection (MPI) Diagnosis
Diagnostic Trouble Code Pro-
cedures
DTC P0325 : Knock Sensor Circuit 13A-346.
IGNITION COIL CHECK M1163001200380
Check by the following procedure, and replace the coil if there
is a malfunction.
.
PRIMARY COIL AND IGNITION POWER
TRANSISTOR CONTINUITY CHECK
NOTE: No test can be performed on the Primary side of coil.
.
SECONDARY COIL CHECK
NOTE: It is impossible to check the secondary coil through the
continuity check as a diode is integrated in the secondary coil
circuit of this ignition coil. Accordingly, check the secondary coil
in the following procedure.
1. Disconnect the ignition coil connector.
2. Remove the ignition coil and install a new spark plug to the
ignition coil.
3. Connect the ignition coil connector.
4. Disable vehicle fuel pump by removing fuel pump relay or
disconnecting fuel pump connector D-18 (under rear seat).
5. Ground the side electrode of the spark plug and crank the
engine.
6. Check that spark is produced between the electrodes of the
spark plug.
7. If no spark is produced, replace the ignition coil with a new
one and recheck.
8. If spark is produced with the new ignition coil, replace the
old one as it is faulty. If no spark is produced again, the
ignition circuit is suspected as faulty. Check the ignition
circuit.

IGNITION SYSTEM
ENGINE ELECTRICAL16-32
SPARK PLUG TESTM1163001500143
1. Remove the spark plug and connect to the ignition coil.
2. Ground the spark plug outer electrode (body), and crank the
engine.
Check that there is an electrical discharge between the
electrodes at this time.
SPARK PLUG CHECK AND CLEANING M1163004300397
Do not attempt to adjust the gap of the iridium plug.
Cleaning of the iridium plug may result in damage to
the iridium tips. Therefore, if carbon deposits must be
removed, use a plug cleaner and complete cleaning
within 20 seconds to protect the electrode. Do not use a
wire brush.
Check the plug gap and replace if the limit is exceeded.
Standard value: 0.7
0.8 mm (0.028 0.031 inch)
Limit: 1.2 mm (0.047 inch)
CAMSHAFT POSITION SENSOR CHECKM1163004400208
Refer to GROUP 13B, Multiport Fuel Injection (MPI) Multiport
Fuel Injection (MPI) Diagnosis
Diagnostic Trouble Code Pro-
cedures
DTC P0340 : Camshaft Position Sensor Circuit
13A-372.
CRANKSHAFT POSITION SENSOR CHECKM1163004500261
Refer to GROUP 13B, Multiport Fuel Injection (MPI) Multiport
Fuel Injection (MPI) Diagnosis
Diagnostic Trouble Code Pro-
cedures
DTC P0335 : Crankshaft Position Sensor Circuit
13A-354.

IGNITION SYSTEM
ENGINE ELECTRICAL16-33
IGNITION COIL
REMOVAL AND INSTALLATION M1163004000448
REMOVAL STEPS
ENGINE COVER (REFER TO
GROUP 11C, ENGINE ASSEMBLY
11A-14).
1. IGNITION COIL CONNECTORS
(LH)
2. IGNITION COILS (LH)
3. SPARK PLUGS (LH)INTAKE MANIFOLD PLENUM
(REFER TO GROUP 15, INTAKE
MANIFOLD PLENUM P.15-5).
4. IGNITION COIL CONNECTORS
(RH)
5. IGNITION COILS (RH)
6. SPARK PLUGS (RH)REMOVAL STEPS (Continued)

SPECIFICATIONS
ENGINE ELECTRICAL16-38
SPECIFICATIONS
FASTENER TIGHTENING SPECIFICATIONSM1161002100506
GENERAL SPECIFICATIONSM1161000200411
ITEM SPECIFICATION
Charging system
Alternator bracket bolt49
9 Nm (36 7 ft-lb)
Alternator bolt49
9 Nm (36 7 ft-lb)
Alternator terminal nut12
2 Nm (102 22 in-lb)
Ignition system
Camshaft position sensor bolt 11
1 Nm (98 8 in-lb)
Crankshaft position sensor bolt 9.0
1.0 Nm (80 9 in-lb)
Ignition coil bolt 10
2 Nm (89 17 in-lb)
Knock sensor 23
2 Nm (17 1 ft-lb)
Spark plug 25
4 Nm (18 3 ft-lb)
Starting system
Starter bolt 30
3 Nm (23 2 ft-lb)
Starter cover bolt 4.9
1.0 Nm (44 8 in-lb)
Starter terminal nut 12
2 Nm (102 22 in-lb)
ITEMS SPECIFICATIONS
Alternator
Type Positive battery positive voltage sensing
Identification number
Part No. MN180394
Rated output V/A 12/110
Voltage regulator Electronic built-in type
Starter Motor
Type Reduction drive with planetary gear
Identification number M000T31172
Part No. 1810A090
Rated output kW/V 1.2/12
Number of pinion teeth 8
Ignition Coil
Type Molded 6 coil
Spark Plugs
BOSCH FR8DI30

SPECIFICATIONS
ENGINE ELECTRICAL16-39
SERVICE SPECIFICATIONSM1161000300322
ITEMS STANDARD VALUE LIMIT
Alternator
Regulated voltage
(Ambient temperature at voltage
regulator)
20C (4F)14.2 15.4
20C (68F) 13.9 14.9
60C (140F) 13.4 14.5
80C (176F) 13.1 14.5
Alternator output wire voltage drop (at 30 A) VMaximum 0.3
Nominal Output current 110A 70 % of normal output
current
Field coil resistance
Approximately 2 5
Brush protrusion length mm (in)Minimum 2 (0.08)
Starter motor
Free running characteristics Terminal voltage
V11
Current A 95
Speed r/min 2,500 or more
Pinion gap mm (in) 0.5 2.0 (0.02 0.07)
Commutator run-out mm (in) 0.05 (0.002) Minimum 0.1 (0.004)
Commutator diameter mm (in) 29.4 (1.16) Minimum 28.8 (1.13)
Undercut depth mm (in) 0.5 (0.02) Minimum 0.2 (0.008)
Ignition parts
Spark plug gap mm 1.0 1.1

UNDER COVER
EXTERIOR51-13
UNDER COVER
REMOVAL AND INSTALLATIONM1511019600119
REMOVAL STEPS
FRONT BUMPER UNDER COVER
(REFER TO P.51-2).
1. SIDE UNDER COVER (LH)2. PLUG
3. SIDE UNDER COVER (RH) REMOVAL STEPS (Continued)

ON-VEHICLE SERVICE
PARKING BRAKES36-4
(2) Remove the console inner box tray and plate (Refer to
GROUP 52A, Floor Console Assembly P.52A-10), and
then loosen the adjusting nut to move it to the cable rod
end so that the cable will be free.
(3) Remove the rear wheels, and then remove the
adjustment hole plug on the brake disc.
(4) Use a flat-tip screwdriver to turn the adjuster in the
direction of the arrow (the direction which expands the
shoe) so that the disc will not rotate by hand. Return the
adjuster five notches in the direction opposite to the
direction of the arrow.
(5) Install the rear wheels, and then tighten the wheel nuts to
98
10 Nm (73 7 ft-lb).
Be careful that the parking brake lever stroke should be
within the standard value. If the stroke is too short, brake
dragging can be caused.
(6) Turn the adjusting nut to adjust the parking brake lever
stroke to the standard value. After adjustment, check that
the adjust nut and the cable rod is not loose.
(7) Release the parking brake and turn the rear wheels to
check that the rear brakes are not dragging.
3. If either of the parking brake cables is replaced, adjust the
parking brake lever stroke as described previously, pull the
parking brake lever 10 times with approximately 200 N (45
pounds) to eliminate the initial slack of the cable. Then
adjust the parking brake lever stroke as described
previously again.

GENERAL00-2
MAINTENANCE SERVICE . . . . . . . .00-37
1. FUEL SYSTEM (TANK, PIPE LINE AND
CONNECTION, AND FUEL TANK FILLER
TUBE CAP) (CHECK FOR LEAKS) . . . . . . 00-37
2. FUEL HOSES (CHECK CONDITION) . . 00-37
3. AIR CLEANER FILTER (REPLACE). . . . 00-37
4. EVAPORATIVE EMISSION SYSTEM
(EXCEPT EVAPORATIVE EMISSION
CANISTER) (CHECK FOR CLOGGING) . . 00-37
5. SPARK PLUGS (REPLACE). . . . . . . . . . 00-38
7. TIMING BELT (REPLACE) . . . . . . . . . . . 00-38
8. DRIVE BELTS (FOR ALTERNATOR, POWER
STEERING PUMP AND AIR CONDITIONING)
(CHECK) . . . . . . . . . . . . . . . . . . . . . . . . . . . 00-39
9. EXHAUST SYSTEM (CONNECTIONS
PORTION OF MUFFLER, MUFFLER PIPES
AND CONVERTER HEAT SHIELDS) (CHECK
AND SERVICE AS REQUIRED) . . . . . . . . . 00-44
10. ENGINE OIL (CHANGE) . . . . . . . . . . . . 00-4411. ENGINE OIL FILTER (REPLACE) . . . . 00-44
12. TRANSMISSION FLUID . . . . . . . . . . . . 00-45
13. ENGINE COOLANT (CHANGE) . . . . . . 00-47
14. COOLANT HOSES (RADIATOR HOSE,
HEATER HOSE) (INSPECT). . . . . . . . . . . . 00-49
15. DISC BRAKE PADS, ROTORS
(INSPECT FOR WEAR) . . . . . . . . . . . . . . . 00-49
16. BRAKE HOSES (CHECK FOR
DETERIORATION OR LEAKS) . . . . . . . . . . 00-49
17. BALL JOINT AND STEERING LINKAGE
SEALS (INSPECT FOR GREASE LEAKS
AND DAMAGE) . . . . . . . . . . . . . . . . . . . . . . 00-50
18. DRIVE SHAFT BOOTS (INSPECT FOR
GREASE LEAKS AND DAMAGE) . . . . . . . . 00-50
19. SUSPENSION SYSTEM (INSPECT FOR
LOOSENESS AND DAMAGE) . . . . . . . . . . 00-51
20. SRS AIR BAG (INSPECT FOR SRS
SYSTEM). . . . . . . . . . . . . . . . . . . . . . . . . . . 00-51
21. TYRES (ROTATE). . . . . . . . . . . . . . . . . 00-58

MAINTENANCE SERVICE
GENERAL00-38
5. SPARK PLUGS (REPLACE)M1001002000346
Iridium plugs are used. Use care not to damage the iridium
tips of the plugs. Do not adjust the spark plug gap.
1. Spark plugs must spark properly to assure proper engine
performance and reduce exhaust emission level. Therefore,
they should be replaced periodically with new ones( Refer to
Maintainence Schedule).
Spark plug type
2. The new plugs should be checked for the proper gap.
Spark plug gap: 1.0
1.1 mm
3. Install the spark plugs and tighten to 25
5 Nm (18 4
ft-lb).
6. TIMING BELT (REPLACE)M1001002300273
Replace the belt with a new one according to the vehicle main-
tenance schedule to assure proper engine performance.
<3.8L ENGINE>
For removal and installation procedures, refer to GROUP 11C,
Engine Mechanical <3.8L Engine>
Timing Belt Removal
and Installation P.11A-46.MAKER 3.8L ENGINE
BOSCH FR8DI30