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Mitsubishi Space Star. Manual - part 44

GDI –

Troubleshooting

13A-103

Item
No.

Reference
page

Inspection
procedure
No.

Normal condition

Requirements

Check items

Fuel pressure
sensor

Engine coolant
temperature:
80 – 95

Lamps, electric
cooling fan and
all accessories:
OFF

Transmission:
Neutral
(A/T: P range)

Engine: Idling

4 – 6.9 MPa

Code No.
P0190

13A-34

Accelerator
pedal position
sensor

(2nd

Ignition switch: ON

Release the accel-
erator pedal.

985 – 1,085 mV

Code No.
P1225

13A-61

sensor

(2nd

channel)*

Depress the accel-
erator pedal gradu-
ally.

Increases in re-
sponse to the ped-
al depression
stroke.

Depress the accel-
erator pedal fully.

4,000 mV or more

Accelerator
pedal position
sensor

Ignition switch: ON

Release the accel-
erator pedal.

985 – 1,085 mV

Code No.
P0220

13A-41

sensor
(1st channel)*

Depress the accel-
erator pedal gradu-
ally.

Increases in re-
sponse to pedal
depression stroke.

Depress the accel-
erator pedal fully.

4,000 mV or more

Throttle posi-
tion sensor (1st
channel)

Engine coolant
temperature:
80

Release the accel-
erator pedal.

450 – 800 mV

Code No.
P0120

13A-22

channel)

80 – 95

Ignition switch:
ON (Engine
stopped)

Depress the accel-
erator pedal gradu-
ally.

Increases in re-
sponse to pedal
depression stroke.

Depress the accel-
erator pedal fully.

4,200 – 4,900 mV

Engine: After
warm-up idling

No load

450 – 1,000 mV

warm-up, idling

A/C switch: OFF

→

Increases by 100 –
600 mV.

Long-term fuel
compensation

Engine: Warm, 2,500 r/min without any
load (during closed loop)

–12.5 – 12.5 %

Code No.
P0170

13A-32

Short-term fuel
compensation

Engine: Warm, 2,500 r/min without any
load (during closed loop)

–30 – 25 %

Code No.
P0170

13A-32

GDI –

Troubleshooting

13A-104

Item
No.

Reference
page

Inspection
procedure
No.

Normal condition

Requirements

Check items

Fuel pressure
sensor

Engine coolant
temperature:
80 – 95

Lamps, electric
cooling fan and
all accessories:
OFF

Transmission:
Neutral
(A/T: P range)

Engine: Idling

4,000 – 6,900 kPa

–

Calculation
load value

Engine: Warm

Engine: Idling

15 – 35 %

–

load value

2,500 r/min

15 – 35 %

Fuel control
condition

Engine: Warm

2,500 r/min

Closed loop

Code No.
P0125

13A-24

condition

When engine is
suddenly raced

Open loop – drive
condition

P0125

Fuel injection
mode

Engine: After warm
up

Idling (after four
minutes or more
have passed since
engine start)

Lean compression

–

2,500 r/min

Stoichiometric
metric feedback

Sudden racing after
idle position

Open loop

Oxygen sensor
(front)

Engine:
After warm-up

Idling

0 V

Code No.
P0130

13A-26

(front)

After warm-up

Sudden racing

0.6 – 1.0 V

P0130

2,500 r/min

0.4 V or less and
0.6 – 1.0 V alter-
nates

Oxygen sensor
(rear)

Transmission:
2nd gear
<M/T>, L range
<A/T>

Drive with
throttle widely
open

3,500 r/min

0.6 – 1.0 V

Code No.
P0136

13A-29

Throttle posi-
tion sensor (1st
channel)

Engine coolant
temperature:
80

Release the accel-
erator pedal.

8 – 16 %

Code No.
P0120

13A-22

channel)
(Throttle valve
opening angle)

80 – 95

Ignition switch:
ON (Engine:
stopped)

Depress the accel-
erator pedal gradu-
ally.

Increase in re-
sponse to pedal
depression stroke.

Depress the accel-
erator pedal fully.

80 – 100 %

Engine: After
warm-up idling

No load

8 – 18 %

warm-up, idling

A/C switch:
OFF

→

Rises by 2 – 10 %

GDI –

Troubleshooting

13A-105

ACTUATOR TEST REFERENCE TABLE

Item
No.

Inspection
item

Drive contents

Inspection contents

Normal condition

Inspection
procedure
No.

Reference
page

Injectors

Cut fuel to No. 1
injector

Engine:
After having
warmed up/Engine

Idling condition
becomes different
(becomes unsta

Code No.
P0201

13A-35

Cut fuel to No. 2
injector

warmed up/Engine
is idling
(Cut the fuel supply
t

h i j

(becomes unsta-
ble).

Code No.
P0202

13A-37

Cut fuel to No. 3
injector

(

to each injector in
turn and check
cylinders which
d

’

idli

)

Code No.
P0203

13A-38

Cut fuel to No. 4
injector

don’t affect idling.)

Code No.
P0204

13A-39

Fuel pump
(low pressure)

Fuel pump
operates and
fuel is recirculated.

Ignition switch: ON

Sound of opera-
tion is heard.

Procedure
No. 30

13A-95

Purge
control
solenoid valve

Solenoid valve
turns from OFF to
ON.

Ignition switch: ON

Sound of opera-
tion can be heard
when solenoid
valve is
driven.

Code No.
P0443

13A-55

Basic ignition
timing

Set the engine-
ECU <M/T> or
engine-A/T-ECU
<A/T> to ignition
timing adjustment
mode

Idling after engine
warm up

BTDC

–

Fan controller

Drive the fan motor

Ignition switch: ON

The fan motor
operates

Procedure
No. 21

13A-87

Electronic-
controlled
throttle valve
system

Stop the throttle
control servo.

Ignition switch: ON

Throttle valve is
opened slightly.

Code No.
P1220

13A-57

GDI –

Troubleshooting

13A-106

CHECK AT THE ENGINE-ECU TERMINALS <M/T>

TERMINAL VOLTAGE CHECK CHART

Engine-ECU Connector Terminal Arrangement

Terminal No.

Check item

Check requirements (engine condition)

Normal condition

No. 1 injector

Engine: Warm up, and then depress
the accelerator pedal suddenly from

Decreases slightly for short
time from 9 – 13 V

No. 2 injector

the accelerator pedal suddenly from
the idle speed.

time from 9 – 13 V

No. 3 injector

No. 4 injector

No. 1 ignition coil

Engine: 3,000 r/min

0.3 – 3.0 V

No. 2 ignition coil

No. 3 ignition coil

No. 4 ignition coil

EGR valve (D)

Ignition switch: Immediately after
turning ON

5 – 8 V (fluctuates for
approx three seconds)

EGR valve (C)

turning ON

approx. three seconds)

EGR valve (B)

EGR valve (A)

Alternator G terminal

Engine: Warm up, and then idling

Radiator fan: Not operating

Headlamp: OFF

→

Stop lamp: OFF

→

Rear defogger switch: OFF

→

Voltage increases by
0.2 – 3.5 V

GDI ECO indication lamp

Ignition switch: OFF

→

0 – 3 V (System voltage
after five seconds)

Engine: When the accelerator pedal is
suddenly depressed while the engine
is idling

System voltage

Purge control solenoid
valve

Engine cool-
ant tempera-

Engine: Stopped

System voltage

valve

ant tempera-
ture:
80 – 95

Ignition
switch: ON

Engine: Start the
engine, and then
increase engine
speed up to 3,500
r/min.

Voltage decreases

Content .. 42 43 44 45 ..