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

+

–

–

+