Mitsubishi Grandis. Manual - part 778

 

  Index      Mitsubishi     Mitsubishi Grandis - service repair manual

 

Search            

 

 

 

 

 

 

 

 

 

Content   ..  776  777  778  779   ..

 

 

Mitsubishi Grandis. Manual - part 778

 

 

TROUBLESHOOTING

MULTIPORT FUEL INJECTION (MPI)

13A-363

Data List Reference Table

M1131152001233

Item 
No.

Inspection 
item

Inspection condition

Normal 
condition

Inspection 
procedure 
No.

Reference 
page

11

Cylinder 1,4 
oxygen 
sensor 
(front)

Engine: After 
warm-up (leaner by 
deceleration, richer 
by acceleration)

Excessive 
deceleration from 
4,000 r/min

200 mV or less Code No. 

P0130

P.13A-57

At excessive 
acceleration

600 

− 1,000 

mV

Engine: After 
warm-up (using 
oxygen sensor, check 
air-fuel ratio as well 
as control status by 
engine-ECU <M/T> 
or engine-A/T-ECU 
<A/T>.

Idle operation

400 mV or less 
⇔ 600 − 1,000 
mV (altered)

2,500 r/min

12

Air flow 
sensor *

1

• Engine coolant 

temperature: 85 

− 

95

°C

• Lamps, electric 

cooling fan and all 
accessories: OFF

• Transmission: 

Neutral <M/T>, "P" 
range <A/T>

Idle operation

2.0 

− 4.0 g/s

2,500 r/min

6.5 

− 12.0 g/s

Acceleration

According to 
acceleration, 
frequency is 
amplified.

13

Intake air 
temperature 
sensor

Ignition switch: ON or 
engine running

Intake air 
temperature:
−20°C

−20°C

Code No. 
P0110

P.13A-30

Intake air 
temperature: 0

°C

0

°C

Intake air 
temperature: 20

°C

20

°C

Intake air 
temperature: 40

°C

40

°C

Intake air 
temperature: 80

°C

80

°C

14

Throttle 
position 
sensor (sub) 
*4

• Remove the intake 

air hose at the 
throttle body

• Disconnect the 

throttle position 
sensor, and the 
connect terminal 
numbers No. 3, 
No. 4, No. 5 and 
No. 6 with the use 
of the special tool: 
MB991658.

• Ignition switch: ON

Fully close the 
throttle valve with 
your finger

2,200 

− 2,800 

mV

Code No. 
P0222, 
P0223

P.13A-135
P.13A-139

Fully open the 
throttle valve with 
your finger

4,000 mV or 
more

TROUBLESHOOTING

MULTIPORT FUEL INJECTION (MPI)

13A-364

16

Power 
supply 
voltage

Ignition switch: "ON"

System 
voltage

Procedure 
No. 22

P.13A-321

18

Cranking 
signal 
(ignition 
switch-ST)

Ignition switch: ON

Engine: Stopped

OFF

Procedure 
No. 22

P.13A-321

Engine: Cranking

ON

21

Engine 
coolant 
temperature 
sensor

Ignition switch: ON or 
engine running

Coolant 
temperature: 
−20°C

−20°C

Code No. 
P0115

P.13A-37

Coolant 
temperature: 0

°C

0

°C

Coolant 
temperature: 20

°C

20

°C

Coolant 
temperature: 40

°C

40

°C

Coolant 
temperature: 80

°C

80

°C

22

Crank angle 
sensor

• Engine: Cranking

• Tachometer: 

Connected

Compare engine 
speed on 
tachometer with the 
value displayed on 
MUT-III

Matched

Code No. 
P0335

P.13A-157

Engine: Idle 
operation

Coolant 
temperature: 
−20°C

1,280 

− 1,480 

r/min

Coolant 
temperature: 0

°C

1,270 

− 1,470 

r/min

Coolant 
temperature: 20

°C

1,230 

− 1,430 

r/min

Coolant 
temperature: 40

°C

1,140 

− 1,340 

r/min

Coolant 
temperature: 90

°C

600 

− 800 

r/min

25

Barometric 
pressure 
sensor

Ignition switch: ON

Altitude: 0m

101 kPa

Altitude: 600m

95 kPa

Altitude: 1,200m

88 kPa

Altitude: 1,800m

81 kPa

29

Inhibitor 
switch 
<A/T>

Ignition switch:  ON

Selector lever: P or 
N

P, N

Procedure 
No. 5

P.13A-292

Selector lever: D, 2, 
L, or R

D, 2, L, R

Item 
No.

Inspection 
item

Inspection condition

Normal 
condition

Inspection 
procedure 
No.

Reference 
page

TROUBLESHOOTING

MULTIPORT FUEL INJECTION (MPI)

13A-365

37

Volumetric 
efficiency

• Engine coolant 

temperature: 85 

− 

95

°C

• Lamps, electric 

cooling fan and all 
accessories: OFF

• Transmission: 

Neutral <M/T>, "P" 
range <A/T>

Idle operation

15 

− 35 %

2,500 r/min

15 

− 35 %

Excessive 
acceleration

According to 
acceleration, 
volumetric 
efficiency is 
increased.

39

Cylinder 2,3 
oxygen 
sensor 
(front)

Engine: After 
warm-up (leaner by 
deceleration, richer 
acceleration)

Excessive 
deceleration from 
4,000 r/m

200 mV or less Code No. 

P0150

P.13A-82

At excessive 
acceleration

600 

− 1,000 

ms

Engine: After 
warm-up (using 
oxygen sensor, check 
air-fuel ratio as well 
as control status by 
engine-ECU 

Idle operation

400 mV or less 
⇔ 600 − 1,000 
mV (altered)

2,500 r/min

41

Injectors*

3

• Engine coolant 

temperature: 80 

− 

95

°C

• Lamps, electric 

cooling fan and all 
accessories: OFF

• Transmission: 

Neutral <M/T>, "P" 
range <A/T>

Idle operation 

2.0 

− 3.2 ms

2,500 r/min

1.7 

− 2.9 ms

Excessive 
acceleration

Increased

44

Ignition 
advance

• Engine: After 

warm-up

• Install timing light 

(for use to 
measure actual 
ignition timing)

Idle operation

− 18°BTDC

Procedure 
No. 26

P.13A-355

2,500 r/min

26 

− 46°BTDC

49

A/C relay

Engine: After 
warm-up, idle 
operation after 
warm-up

A/C switch: OFF

OFF 

Procedure 
No. 25

P.13A-347

A/C 
switch
: ON

A/C 
compressor 
is not driven

OFF 

A/C 
compressor 
is driven

ON

59

Cylinder 1,4 
Oxygen 
Sensor 
(rear)

Engine: After 
warm-up

At excessive 
acceleration (during 
the increase in the 
engine speed)

0 mV or less 
⇔ 600 − 1,000 
mV (altered)

Code No. 
P0136

P.13A-69

Item 
No.

Inspection 
item

Inspection condition

Normal 
condition

Inspection 
procedure 
No.

Reference 
page

TROUBLESHOOTING

MULTIPORT FUEL INJECTION (MPI)

13A-366

67

Stop lamp 
switch

Ignition switch:  ON

Brake pedal: 
Depressed

OFF

Brake pedal: 
Released

ON

68

EGR valve

• Engine coolant 

temperature: 85 

− 

95

°C

• Lights and all 

accessories: OFF

• Transmission: 

Neutral <M/T>, "P" 
range <A/T>

Idling

3 STEP

Code No. 
P0403

P.13A-176

2,500 r/min

− 22 STEP

69

Cylinder 2,3 
oxygen 
sensor 
(rear)

Engine: After 
warm-up

At excessive 
acceleration (during 
the increase in the 
engine speed)

0 mV or less 
⇔ 600 − 1,000 
mV (altered)

Code No. 
P0156

P.13A-95

77

Accelerator 
pedal 
position 
sensor (sub)

Ignition switch: ON

Release the 
accelerator pedal

400 

− 1,000 

mV

Code No. 
P2127, 
P2128

P.13A-256
P.13A-261

Depress the 
accelerator pedal 
gradually

Increases in 
response to 
the pedal 
depression 
stroke

Depress the 
accelerator pedal 
fully

3,600 mV or 
more

78

Accelerator 
pedal 
position 
sensor 
(main)

Ignition switch: ON

Release the 
accelerator pedal

800 

− 1,200 

mV

Code No. 
P2122, 
P2123

P.13A-248
P.13A-253

Depress the 
accelerator pedal 
gradually

Increases in 
response to 
the pedal 
depression 
stroke

Depress the 
accelerator pedal 
fully

4,000 mV or 
more

Item 
No.

Inspection 
item

Inspection condition

Normal 
condition

Inspection 
procedure 
No.

Reference 
page

 

 

 

 

 

 

 

Content   ..  776  777  778  779   ..