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