Mitsubishi Space Star. Manual — part 50
GDI –
On-vehicle Service
13A-127
ACCELERATOR PEDAL POSITION SENSOR
(1ST AND 2ND CHANNELS) CHECK
1.
Disconnect the accelerator pedal position sensor
connector.
2.
Measure resistance between terminal Nos. 2 (1st channel
power supply) and 1 (1st channel earth) as well as between
terminal Nos. 8 (2nd channel power supply) and terminal
No. 7 (2nd channel earth) of the sensor connector.
Standard value: 3.5 – 6.5 k
Ω
3.
Measure resistance between terminal Nos. 2 (1st channel
power supply) and 3 (1st channel output) as well as
between terminal Nos. 8 (2nd channel power supply) and
terminal No. 6 (2nd channel output) of the sensor
connector.
Normal condition:
Depress the accelerator
pedal slowly.
Resistance value changes in
accordance with the
accelerator pedal
depression smoothly.
4.
If not within the standard value, or resistance value does
not change smoothly, replace the accelerator pedal position
sensor.
NOTE
After replacement, adjust the accelerator pedal position
sensor. (Refer to P.13A-121.)
ACCELERATOR PEDAL POSITION SWITCH
CHECK
1.
Disconnect the accelerator pedal position sensor
connector.
2.
Check continuity between terminal Nos. 4 (accelerator
pedal position switch) and 5 (earth) of the connector.
Normal condition:
Accelerator pedal
Continuity
Depressed
No continuity
Released
Continuity (0
Ω
)
3.
If defective, replace the accelerator pedal position sensor.
NOTE
After replacement, adjust the accelerator pedal position
sensor. (Refer to P.13A-121.)
Equipment side
connector
Accelerator pedal
position sensor
Accelerator pedal arm
Equipment side
connector
Accelerator pedal
position sensor
Accelerator pedal arm
GDI –
On-vehicle Service
13A-128
OXYGEN SENSOR CHECK
<Oxygen sensor (front)>
1.
Disconnect the oxygen sensor connector and connect the
special tool (test harness) to the connector on the oxygen
sensor side.
2.
Make sure that there is continuity (4.5 – 8.0
Ω
at 20
C)
between terminal 1 (red clip of special tool) and terminal
3 (blue clip of special tool) on the oxygen sensor connector.
3.
If there is no continuity, replace the oxygen sensor.
4.
Warm up the engine until engine coolant is 80
C or higher.
5.
Use a jumper wire to connect terminal 1 (red clip) of the
oxygen sensor connector to the battery (+) terminal and
terminal 3 (blue clip) to the battery (–) terminal.
Caution
Be very careful when connecting the jumper wire;
incorrect connection can damage the oxygen sensor.
6.
Connect a digital voltage meter between terminal 2 (black
clip) and terminal 4 (white clip).
7.
While repeatedly racing the engine, measure the oxygen
sensor output voltage.
Standard value:
Engine
Oxygen sensor
output voltage
Remarks
When racing
the engine
0.6 – 1.0 V
If you make the air/fuel
ratio rich by racing the
engine repeatedly, a nor-
mal oxygen sensor will
output a voltage of 0.6 –
1.0 V.
8.
If the sensor is defective, replace the oxygen sensor.
NOTE
For removal and installation of the oxygen sensor, refer
to GROUP 15 – Exhaust Pipe and Main Muffler.
Oxygen sensor
(front)
Equipment side
connector
Red
MD998464
Blue
White
Black
Red
Blue
MD9998464
GDI –
On-vehicle Service
13A-129
<Oxygen sensor (rear)>
1.
Disconnect the oxygen sensor connector and connect the
special tool (test harness set) to the connector on the
oxygen sensor side.
2.
Make sure that there is continuity (11 – 18
Ω
at 20
C)
between terminal 3 and terminal 4 on the oxygen sensor
connector.
3.
If there is no continuity, replace the oxygen sensor.
NOTE
(1) If the MUT-
II
does not display the standard value
although no abnormality is found by the above
mentioned continuity test and harness check, replace
the oxygen sensor (rear).
(2) For removal and installation of the oxygen sensor,
refer to GROUP 15 – Exhaust Pipe and Main Muffler.
Oxygen sensor (rear)
Equipment side connector
MB991223
GDI – Fuel Pump (High Pressure)
13A-130
FUEL PUMP (HIGH PRESSURE)
REMOVAL AND INSTALLATION
Pre-removal and Post-installation Operation
Engine Cover Removal and Installation
(Refer to GROUP 11A – Camshaft, Camshaft Oil
Seal.)
Prevention of Fuel Discharge <before removal only>
Fuel Leak Check <after installation only>
Air Cleaner Assembly Removal and Installation
Throttle Body Remove and Installation
(Refer to P.13A-137.)
Intake Manifold Removal and Installation
(Refer to GROUP 15.)
3
3
11 - 13
N m
A p p l y e n g i n e o i l t o
a l l O - r i n g s d u r i n g
i n s t a l l a t i o n .
1
8
6
2
5
4
5 . 0 N m
→
1 7 N m
5
4
7
Removal steps
D
Air bleeding the high-pressure fuel
path
C
1. Fuel return hoses connection
B
2. Fuel pipe
B
3. Back-up ring A
B
4. O-ring
B
5. Back-up ring B
A
6. Fuel pump (high pressure)
7. O-ring
8. Insulator
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