Mitsubishi Lancer Evolution X. Manual - part 440

MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS

TSB Revision

MULTIPORT FUEL INJECTION (MFI)

13A-825

Injectors

17

Injectors*

2

Engine: 
cranking

When engine 
coolant 
temperature is 
0° C (32° F)

16 − 36 ms

−

−

When engine 
coolant 
temperature is 
20° C (68° F)

8 − 20 ms

When engine 
coolant 
temperature is 
80° C (176° F)

2 − 6 ms

Injectors*

3

• Engine 

coolant 
temperatur
e: 80 − 

95° C (176 − 

203° F)

• Lights, 

electric 
cooling fan 
and all 
accessories
: "OFF"*

4

• Transaxle: 

Neutral 
(TC-SST: 
"P" range)

Engine is 
idling

1.3 − 3.3 ms

2,500 r/min

1.0 − 3.2 ms

When engine 
is suddenly 
revved

Increases

Intake air 
temperat
ure 
sensor 1

5

Intake air 
temperature 
sensor 1

Ignition switch: 
"ON" or with 
engine running

Intake air 
temperature is 
− 20° C (− 4°  F)

− 20° C (− 4°  

F)

Code No. 
P0111, 
P0112, 
P0113

P.13A-167

, 

P.13A-173

, 

P.13A-177

Intake air 
temperature is 
0° C (32° F)

0° C (32° F)

Intake air 
temperature is 
20° C (68° F)

20° C (68° F)

Intake air 
temperature is 
40° C (104° F)

40° C 

(104° F)

Intake air 
temperature is 
80° C (176° F)

80° C 

(176° F)

M.U.T.-III 
SCAN 
TOOL 
DISPLAY

ITEM 
NO. 

INSPECTION 
ITEM

INSPECTION REQUIREMENT

NORMAL 
CONDITION

INSPECTION 
PROCEDURE 
NO.

REFERENCE 
PAGE

MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS

TSB Revision

MULTIPORT FUEL INJECTION (MFI)

13A-826

Intake air 
temperat
ure 
sensor 2

DE

Intake air 
temperature 
sensor 2

Ignition switch: 
"ON" or with 
engine running

Intake air 
temperature is 
− 20° C (− 4° F)

− 20° C (− 4° F) Code No. 

P0096, 
P0097, 
P0098

P.13A-110

, 

P.13A-117

, 

P.13A-121

Intake air 
temperature is 
0° C (32° F)

0° C (32° F)

Intake air 
temperature is 
20° C (68° F)

20° C (68° F)

Intake air 
temperature is 
40° C (104° F)

40° C 

(104° F)

Intake air 
temperature is 
80° C (176° F)

80° C 

(176° F)

Intake 
VVT 
angle 
(bank 1)

36

Intake MIVEC 
phase angle

Engine: warming up, idle

−13 to 7° CA 

(ATDC)

Code No. 
P0011

P.13A-62

Engine: warming up, sudden 
revving

Decreases 
(advances)

ISC 
learned 
value 
(A/C 
OFF)

68

Idle speed 
control learned 
value (A/C 
OFF)

Ignition switch: "ON"

• Indicates the learning 

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.

−1 to 2.0 L/s 

(Display 
range)

−

−

ISC 
learned 
value 
(A/C ON)

69

Idle speed 
control learned 
value (A/C 
ON)

Ignition switch: "ON"

• Indicates the learning 

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.

−1 to 2.0 L/s 

(Display 
range)

−

−

Knock 
retard

32

Knock retard

Engine: warming up, sudden 
revving

According to 
acceleration, 
knock retard 
is increased.

−

−

M.U.T.-III 
SCAN 
TOOL 
DISPLAY

ITEM 
NO. 

INSPECTION 
ITEM

INSPECTION REQUIREMENT

NORMAL 
CONDITION

INSPECTION 
PROCEDURE 
NO.

REFERENCE 
PAGE

MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS

TSB Revision

MULTIPORT FUEL INJECTION (MFI)

13A-827

Learned 
knock 
retard

33

Knock control 
learned value

Ignition switch: "ON"

• The learning value is 

shown, which 
compensates the ignition 
time based on the knock 
sensor.

• "0 %" means "retard 

angle" and "100 %" 
means "advance angle".

0 − 100 % 

(Display 
range)

−

−

Long 
term fuel 
trim (bank 
1)

26

Long-term fuel 
trim

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

− 12.5 to 12.5 

%

Code No. 
P0171, 
P0172

P.13A-267

, 

P.13A-273

MAP 
sensor

8

Manifold 
absolute 
pressure 
sensor

Ignition switch: 
"ON"

Engine 
stopped [At 
altitude of 0 m 
(0 ft.)]

101 kPa 
(29.8 in.Hg)

Code No. 
P0106, 
P0107, 
P0108

P.13A-145

, 

P.13A-154

, 

P.13A-162

Engine 
stopped [At 
altitude of 600 
m (1,969 ft.)]

95 kPa (28.1 
in.Hg)

Engine 
stopped [At 
altitude of 
1,200 m 
(3,937 ft.)]

88 kPa (26.0 
in.Hg)

Engine 
stopped [At 
altitude of 
1,800 m 
(5,906 ft.)]

81 kPa (23.9 
in.Hg)

Engine: warming up, idling

31 − 45 kPa 

(9.1 − 13.3 

in.Hg)

When engine is suddenly 
revved

Manifold 
pressure 
varies

Neutral 
switch

87

Neutral switch 
<TC-SST>

Ignition switch: "ON"

ON

−

−

Engine: idling

Shift lever: "N" 
or "P" range

ON

Shift lever: "R" 
or "D" range

OFF

Normally 
closed 
brake 
switch

89

Normally 
closed brake 
switch

Ignition switch: 
"ON"

Depress the 
brake pedal

ON

−

−

Release the 
brake pedal

OFF

M.U.T.-III 
SCAN 
TOOL 
DISPLAY

ITEM 
NO. 

INSPECTION 
ITEM

INSPECTION REQUIREMENT

NORMAL 
CONDITION

INSPECTION 
PROCEDURE 
NO.

REFERENCE 
PAGE

MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS

TSB Revision

MULTIPORT FUEL INJECTION (MFI)

13A-828

Oxygen 
sensor 
(bank 1 
sensor 1)

AC

Heated 
oxygen sensor 
(front)

Engine: 
warming up 
(Air/fuel 
mixture is 
made leaner 
when 
decelerating 
and is made 
richer when 
revving)

When the 
engine is 
running at 
4,000 r/min, 
decelerate 
suddenly.

0.2 V or less 
→ 0.6 − 1.0 V 

(After several 
seconds 
have 
elapsed)

Code No. 
P0131, 
P0132, 
P0133, 
P0134, 
P2195

P.13A-223

, 

P.13A-231

, 

P.13A-235

, 

P.13A-240

, 

P.13A-670

When engine 
is suddenly 
revved

0.6 − 1.0 V

Engine: 
warming up 
(the heated 
oxygen sensor 
signal is used 
to check the 
air/fuel mixture 
ratio, and 
control 
condition is 
also checked 
by the ECM.) 

Engine is 
idling

Voltage 
changes 
repeatedly 
between 0.4 
V or less and 
0.6 −1.0 V.

2,500 r/min

Oxygen 
sensor 
(bank 1 
sensor 2)

AD

Heated 
oxygen sensor 
(rear)

• Transaxle: 2 nd
• Drive with wide open 

throttle

• Engine: 3,500 r/min or more

0.6 − 1.0 V

Code No. 
P0137, 
P0138, 
P0139, 
P0140

P.13A-246

, 

P.13A-254

, 

P.13A-258

, 

P.13A-263

Power 
steering 
switch

83

Power 
steering 
pressure 
switch

Engine: idling

Steering wheel 
stationary

OFF

Code No. 
P0551

P.13A-527

Steering wheel 
turning

ON

Power 
supply 
voltage

1

Power supply 
voltage

Ignition switch: "ON"

Battery 
positive 
voltage

Procedure 
No. 22

P.13A-760

Relative 
APP 
sensor

DD

Relative 
accelerator 
pedal position 
sensor

Ignition switch: 
"ON"

Release the 
accelerator 
pedal

0 − 5 %

−

−

Depress the 
accelerator 
pedal 
gradually

Increases in 
response to 
the pedal 
depression 
stroke

Depress the 
accelerator 
pedal fully

95 − 100 %

M.U.T.-III 
SCAN 
TOOL 
DISPLAY

ITEM 
NO. 

INSPECTION 
ITEM

INSPECTION REQUIREMENT

NORMAL 
CONDITION

INSPECTION 
PROCEDURE 
NO.

REFERENCE 
PAGE