Mitsubishi Space Star. Manual — part 97
ENGINE ELECTRICAL –
Charging System
16-7
(14)If the voltage reading conforms to the value
in the voltage regulation, then the voltage
regulator is operating normally.
If the voltage is not within the standard value,
there is a malfunction of the voltage regulator
or of the alternator.
(15)After the test, lower the engine speed to the
idle speed.
(16)Turn the ignition switch off.
(17)Disconnect the negative batter cable.
(18)Disconnect the ammeter, voltmeter and
tachometer.
(19)Connect the alternator output wire to the
alternator “B” terminal.
(20)Connect the negative battery cable.
Voltage Regulation Table
Standard value:
Inspection terminal
Voltage regulator ambient temperature
C
Voltage V
Terminal “L”
–20
14.7 – 15.3
20
14.4 – 14.7
60
13.9 – 14.4
80
13.7 – 14.2
ENGINE ELECTRICAL –
Charging System
16-8
ALTERNATOR <F9Q1>
REMOVAL AND INSTALLATION
Pre-removal Operation
Under Cover Removal
Intercooler Air Hose Removal
(Refer to GROUP 15 – Intercooler.)
Post-installation Operation
Intercooler Air Hose Installation
(Refer to GROUP 15 – Intercooler.)
Under Cover Installation
1
2
3
4
Removal steps
1. Drive belt
2. Idler pulley
A/C Compressor mounting bolt
3. Alternator connector
A
4. Alternator
REMOVAL SERVICE POINT
A
ALTERNATOR REMOVAL
Put the A/C compressor aside so that enough space to remove
the alternator can be secured.
A/C Compressor
ENGINE ELECTRICAL –
Ignition System
16-9
IGNITION SYSTEM
GENERAL
OUTLINE OF CHANGES
<4G93-GDI>
An ignition failure sensor has been added. Other service specifications are the same as before.
<4G13-MPI>
The following service specifications have been established. Other items are the same as before.
A distributorless 2-coil ignition system has been adopted.
The spark plugs have been changed.
An ignition failure sensor has been added.
GENERAL INFORMATION
SYSTEM DIAGRAM <4G13-MPI>
Intake air temperature
sensor
Engine coolant
temperature sensor
Camshaft position sensor
Crank angle sensor
Ignition switch – ST
Detonation sensor
Vehicle speed sensor
Engine-ECU
Ignition
failure
sensor
To tachometer
Ignition switch
Battery
Ignition coil A
Ignition coil B
Spark plug
No.
Cylin-
der
2
3
4
1
IGNITION COIL SPECIFICATIONS
Items
4G13-MPI
Type
Molded 2-coil
SPARK PLUG SPECIFICATIONS
Items
4G13-MPI
NGK
BKR6E-11
DENSO
K20PR-U11
ENGINE ELECTRICAL –
Ignition System
16-10
SERVICE SPECIFICATIONS
IGNITION COIL
Items
4G13-MPI
Secondary coil resistance k
Ω
8.5 – 11.5
IGNITION FAILURE SENSOR
Items
4G93-GDI, 4G13-MPI
Resistance
Ω
0.1 or less
ON-VEHICLE SERVICE
IGNITION COIL (WITH BUILT-IN POWER
TRANSISTOR) CHECK
<4G13-MPI>
Check by the following procedure, and replace if there is a
malfunction.
SECONDARY COIL RESISTANCE CHECK
Measure the resistance between the high-voltage terminals
of the ignition coil.
Standard value: 8.5 – 11.5 k
Ω
PRIMARY COIL AND POWER TRANSISTOR CONTINUITY
CHECK
NOTE
An analog-type circuit tester should be used.
Voltage: 1.5 V
Terminal No.
g
1
2
3
When current is
flowing
When current is
not flowing
1.5 V
+
–
–
+
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