Mitsubishi Space Star. Manual — part 100
ENGINE ELECTRICAL –
Ignition System
16-19
CRANK ANGLE SENSOR
REMOVAL AND INSTALLATION
Pre-removal and Post-installation Operation
Timing Belt Cover Removal and Installation
<4G93-GDI>
9 . 8 N m
1
2
Removal steps
1. Bracket
2. Crank angle sensor
<4G13-MPI>
8 . 8 N m
1 0 – 1 2 N m
1
2
Removal steps
1. Crank angle sensor
2. Connector bracket
ENGINE ELECTRICAL –
Ignition System
16-20
DETONATION SENSOR
REMOVAL AND INSTALLATION
Pre-removal and Post-installation Operation
Engine Cover Removal and Installation
<4G93-GDI> (Refer to GROUP 11A – Camshaft,
Camshaft Oil Seal.)
Intake Manifold Stay Removal and Installation
(Refer to GROUP 15.)
1
1
< 4 G 1 3 - M P I >
< 4 G 9 3 - G D I >
1 0 – 1 2 N m
2 1 – 2 5 N m
2 1 – 2 5 N m
A
A
1. Detonation sensor
Caution
Do not subject the detonation sensor to any shocks.
REMOVAL SERVICE POINT
A
DETONATION SENSOR REMOVAL
INSTALLATION SERVICE POINT
A
DETONATION SENSOR INSTALLATION
MD998773
ENGINE ELECTRICAL –
Glow System
16-21
GLOW SYSTEM
GENERAL
OUTLINE OF CHANGES
The following maintenance service points have been established to correspond to the adoption of the
F9Q1 engine.
GENERAL INFORMATION
The glow system reduces the time required for starting at low temperatures to provide a degree of starting
and operation that is identical to petrol-engine vehicles by pre-heating the glow plugs at super-quick speed.
The engine-ECU controls both the time during which current is supplied to the glow plugs after the ignition
switch is turned to the ON position and also the glow indicator lamp illumination time in accordance with
the engine coolant temperature.
When the engine-ECU detects an abnormality in the glow system, it outputs diagnosis code (diesel fuel
system) in response to the abnormal item.
SYSTEM DIAGRAM
Battery
No. 4
glow
plug
No. 3
glow
plug
No. 2
glow
plug
No. 1
glow
plug
Glow relay
box
(Barometric
pressure
sensor)
Engine-ECU
Crank angle sensor
Engine coolant temperature
sensor
Glow indicator
lamp
Engine warning lamp
Combination
meter
Ignition
switch
+
–
ENGINE ELECTRICAL –
Glow System
ENGINE ELECTRICAL –
Glow System
16-22
SERVICE SPECIFICATIONS
Items
Standard value
Voltage between glow plug
lead and glow body V
Immediately after ignition
switch is turned to ON
(without starting the engine)
9 – 11
(Drops to 0 V after 0.5 – 16 seconds have passed)
While engine is cranking
6 or more
While engine is warming up
12 – 15
(Drops to 0 V when if 10 – 60 seconds have passed since
the engine was started)
Glow plug resistance
Ω
0.6
ON-VEHICLE SERVICE
GLOW SYSTEM CHECK
1.
Check that battery voltage is 11 – 13 V.
2.
Check that the engine coolant temperature is 40
C or
less.
3.
Measure the voltages at the glow plug circuits of each
cylinder.
For the No. 1 glow plug cylinder, measure between
glow relay box connector terminal (5) and earth.
For the No. 2 glow plug cylinder, measure between
glow relay box connector terminal (7) and earth.
For the No. 3 glow plug cylinder, measure between
glow relay box connector terminal (3) and earth.
For the No. 4 glow plug cylinder, measure between
glow relay box connector terminal (4) and earth.
4.
Measure the voltage immediately after the ignition switch is
turned to ON (without starting the engine).
Standard value:
9 – 11 V (Drops to 0 V after 0.5 – 16 seconds have
passed)
In addition, check to be sure that the glow indicator lamp
illuminates immediately after the ignition switch is turned
to ON.
NOTE
The voltage generated time (continuity time) varies
depending on the engine coolant temperature when the
ignition switch is ON.
5.
Measure the voltage while the engine is cranking.
Standard value: 6 V or more
6.
Start the engine and measure the voltage while the engine
is warming up.
The voltage always drops to 0 V when 10 – 60 seconds
have passed after starting the engine.
Standard value: 12 – 15 V
NOTE
The voltage generated time (continuity time) varies
depending on the engine coolant temperature when the
ignition switch is ON.
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