Mitsubishi Outlander (2013+). Manual - part 321

TROUBLESHOOTING

MULTIPOINT FUEL INJECTION (MPI)

13A-165

NOTE: *1: On the new vehicle (mileage: 500 km or less), air flow sensor output value may be higher by 
approximately 10 %.

NOTE: *2: On the new vehicle (mileage: 500 km or less), injector drive time may be longer by approximately 
10 %.

Engine-ECU monitoring items

• This monitor item includes many useful items for understanding the engine conditions controlled by the 

engine-ECU.

• However, it is hard to show the definite specification of each item, since its value may vary to a large 

extent with a little difference in the measuring conditions, environment, and changes with the lapse of 
time, etc. on the objective vehicle. Therefore, this document will describe only the check conditions, dis-
play range, and behaviour of numeric values.

BE

Accelerator 
pedal 
position 
sensor 
(main)

Ignition switch: 
"ON"

Release the 
accelerator pedal

16 

− 24 %

Code 
No. 
P2122, 
P2123

P.13A-102

, 

P.13A-104

Depress the 
accelerator pedal

Increases in 
response to the 
pedal depression 
stroke

Depress the 
accelerator pedal 
fully

80 % or more

BF

Accelerator 
pedal 
position 
sensor (sub)

Ignition switch: 
"ON"

Release the 
accelerator pedal

6 

− 14 %

Code 
No. 
P2127, 
P2128

P.13A-105

, 

P.13A-106

Depress the 
accelerator pedal

Increases in 
response to the 
pedal depression 
stroke

Depress the 
accelerator pedal 
fully

40 % or more

DD

Accelerator 
pedal 
position 
sensor 
(relative 
value)

Ignition switch: 
"ON"

Release the 
accelerator pedal

0 

− 5 %

−

−

Depress the 
accelerator pedal

Increases in 
response to the 
pedal depression 
stroke

Depress the 
accelerator pedal 
fully

95 

− 100 %

Item 
No.

Inspection 
Item

Inspection condition

Normal condition

Code 
No. or 
inspecti
on 
procedu
re No.

Reference 
page

TROUBLESHOOTING

MULTIPOINT FUEL INJECTION (MPI)

13A-166

Item 
No.

INSPECTION ITEM

M.U.T.-III display 
descriptions

Standards at each 
check

Display range, 
and numeric 
value

14

Throttle position sensor 
(main) learning value

• The following shows 

learning values of throttle 
valve opening angle at 
idling.

Ignition switch: "ON"

500 

− 2,000 mV

26

Long-term fuel trim

• Indicates the long-term 

air-fuel ratio feedback 
amount.

• The negative side shows a 

reduction in the injection 
amount, while the positive 
side shows an increase.

Ignition switch: "ON"

−10 to 10 % 
<4B11>

−12.5 to 12.5 % 
<4B12>

28

Short-term fuel trim

• Indicates the short-term 

air-fuel ratio feedback 
amount.

• The negative side shows a 

reduction in the injection 
amount, while the positive 
side shows an increase.

Engine: After warm-up, 
2,500 r/min without any 
load (under the air-fuel 
ratio feedback control)

−25 to 25 %

32

Detonation retard

• Indicates the ignition timing 

retardation angle that is 
controlled by the detonation 
sensor output. 

Engine: Excessive 
acceleration after 
warm-up

Retards 
depending on the 
degree (angle) of 
acceleration

33

Detonation control 
learned value

• Indicates the learning value 

to compensate for the 
ignition timing that is 
controlled by the detonation 
sensor output.

• 0 %side is retardation, and 

100 % side is advance.

Ignition switch: "ON"

0 

− 100 %

47

Fan motor duty

• Indicates the duty ratio for 

the electric cooling fan.

• Engine: After 

warm-up

• A/C switch: "ON" 

(when the 
compressor is 
active)

0 

− 100 %

49

Purge control solenoid 
valve duty

• Indicates the duty ratio for 

the purge control solenoid 
valve.

Engine: After warm-up 
(when 1 minute has 
elapsed)

0 

− 100 %

58

Throttle valve control 
servo

• Indicates the target opening 

angle of throttle valve.

Engine: After warm-up

0 

− 100 %

59

Throttle valve control 
servo target value

• Indicates the target opening 

angle of throttle valve.

Engine: After warm-up

0 

− 5.0 V

TROUBLESHOOTING

MULTIPOINT FUEL INJECTION (MPI)

13A-167

NOTE: 

*

1: Condition in which fuel is controlled without oxygen sensor signals being fed back to the 

engine-ECU because the condition to shift to the closed loop is not met.

NOTE: 

*

2: Condition in which oxygen sensor signals are fed back to the engine-ECU for controlling fuel.

68

Idle speed control 
learned value (A/C 
OFF)

• Indicates the leaning value 

to compensate for the 
opening angle of idling 
speed control (opening 
angle of throttle valve).

• The negative side shows 

"close" side, while the 
positive side shows "open" 
side.

Ignition switch: "ON"

−1 to 2.5 L/s

69

Idle speed control 
learned value (A/C ON)

• Indicates the leaning value 

to compensate for the 
opening angle of idling 
speed control (opening 
angle of throttle valve) with 
the air conditioner turned 
"ON".

• The negative side shows 

"close" side, while the 
positive side shows "open" 
side.

Ignition switch: "ON"

−1 to 2.5 L/s

72

Absolute load value

• Indicates the size of engine 

load.

Engine: After warm-up

0 

− 100 %

73

Calculated load value

• Indicates the size of engine 

load.

Engine: After warm-up

0 

− 100 %

105

Fuel system status

• Indicates the air-fuel ratio 

feedback control 
conditions.

OL: Open loop*

1

CL: Closed loop*

2

OL-DRV: Condition of open 

loop due to acceleration 
and deceleration driving

OL-SYS: Condition of open 

loop due to system 
failure.

CL-HO2: Condition of 

closed loop only using 
front oxygen sensor 
when rear oxygen sensor 
is failed

Engine: After warm-up

Varies depending 
on the drive 
conditions

106

Fuel system status 2

Data items are displayed on M.U.T.-III display, but the 
in-line 4 engine is not applicable and its data is 
displayed as "N/A".

N/A

Item 
No.

INSPECTION ITEM

M.U.T.-III display 
descriptions

Standards at each 
check

Display range, 
and numeric 
value

TROUBLESHOOTING

MULTIPOINT FUEL INJECTION (MPI)

13A-168

ACTUATOR TEST REFERENCE TABLE

M1131152503557

Item 
No.

Inspection 
Item

Drive content

Inspection condition

Normal 
condition

Code No. 
or 
inspection 
procedure 
No.

Reference 
page

1

Injectors

Specified injector is 
stopped

Engine: warm up, idle 
(cut the fuel supply to 
each injector in turn and 
check cylinders which 
don't affect idling.)

Idle condition is 
changed by 
stopping 
selected 
cylinder: this 
can cause an 
unstable 
condition and 
the engine may 
stall.

Code No. 
P0261, 
P0262, 
P0264, 
P0265, 
P0267, 
P0268, 
P0270, 
P0271

P.13A-62

, 

P.13A-63

, 

P.13A-64

, 

P.13A-65

, 

P.13A-66

, 

P.13A-67

, 

P.13A-68

, 

P.13A-69

9

Fuel pump

Drive fuel pump to 
circulate fuel

• Ignition switch: "ON"

• Check for pump 

operating noise near 
fuel tank

Operating 
noise audible

Procedure 
No. 20

P.13A-149

10

Purge 
control 
solenoid 
valve

Switch solenoid 
valve from OFF to 
ON

Ignition switch: "ON"

When the valve 
is actuated, 
operating noise 
is audible

Code No. 
P0458, 
P0459

P.13A-83

, 

P.13A-84

14

Cooling fan 
motor

Actuate the fan 
motor

Ignition switch: "ON"

Fan motor 
rotates at high 
speed

−

−

16

A/C 
compressor 
relay

Switch the A/C 
compressor relay 
from OFF to ON

Ignition switch: "ON"

The operating 
sound of A/C 
compressor is 
audible

Procedure 
No. 21

P.13A-151

17

Inlet oil 
feeder 
control 
valve

Switch the inlet oil 
feeder control 
valve from OFF to 
ON

Ignition switch: "ON"

When the valve 
is actuated, 
operating noise 
is audible

Code No. 
P0010

P.13A-25

CHECK AT THE ECU TERMINALS

M1131153502513

Disconnect the engine-ECU connectors, and 

connect check harness special tool MB992110 
between the engine-ECU connectors.

1. Measure the voltage between each check 

harness connector terminal and check harness 
connector earth terminal (GNDB or GNDE).

2. Connect a needle-nosed wire probe to a voltmeter 

probe.

3. Referring to the check sheet, insert the micromini 

probe into the check harness connector and 
measure the voltage.

NOTE: 

.

1. You may find it convenient to pull out the 

engine-ECU to make it easier to reach the 
connector terminals.

2. The chart procedures do not have the particu-

lar order.