Mitsubishi Eclipse. Manual — part 350

MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS

TSB Revision

MULTIPORT FUEL INJECTION (MFI) <2.4L>

13A-893

MUT-III
SCAN
TOOL
DISPLAY

ITEM
NO.

INSPECTION
ITEM

INSPECTION REQUIREMENT

NORMAL
CONDITION

INSPECTION
PROCEDURE
NO.

REFERENCE
PAGE

A/C
RELAY

49

A/C
compressor
clutch relay

• Engine: idling

• A/C switch: "OFF"

OFF

Procedure No.
34

P.13A-887

• Engine:

idling

• A/C switch:

"ON"

A/C compressor
clutch is not
operating

OFF

A/C compressor
clutch is
operating

ON

A/C
SWITCH

28

A/C switch

• Engine: idling

• A/C switch: OFF

OFF

Procedure No.
34

P.13A-887

• Engine:

idling

• A/C switch:

ON

A/C compressor
clutch is not
operating

OFF

A/C compressor
clutch is
operating

ON

BARO
SENSOR

25

Barometric
pressure
sensor

Ignition switch:
"ON"

At altitude of 0 m
(0 ft)

101 kPa (29.8
in.Hg)

Code No.
P2227, P2228,
P2229

P.13A-695

,

P.13A-705

,

P.13A-725

At altitude of 600
m (1,969 ft)

95 kPa (28.1
in.Hg)

At altitude of
1,200 m (3,937
ft)

88 kPa (26.0
in.Hg)

At altitude of
1,800 m (5,906
ft)

81 kPa (26.0
in.Hg)

BATT
VOLTAGE

16

Battery
voltage
(power
supply)

Ignition switch: "ON"

Battery positive
voltage

Procedure No.
29

P.13A-837

MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS

TSB Revision

MULTIPORT FUEL INJECTION (MFI) <2.4L>

13A-894

CKP
SENSOR

22

Crankshaft
position
sensor
(engine
speed)

*1

• Engine: cranking

• Tachometer: connected

Engine speeds
displayed on
the scan tool
and
tachometer are
identical

Code No.
P0335

P.13A-409

Engine: idling

Engine coolant
temperature is
−20°C (−4°F)

1,275

− 1,475

r/min

Engine coolant
temperature is
0

°C (32°F)

1,220

− 1,420

r/min

Engine coolant
temperature is
20

°C (68°F)

1,100

− 1,300

r/min

Engine coolant
temperature is
40

°C (104°F)

930

− 1,130

r/min

Engine coolant
temperature is
80

°C (176°F)

600

− 800

r/min

CRANK.
SIGNAL

18

Cranking
signal (ignition
switch-ST)

Ignition switch:
"ON"

Engine: stopped

OFF

Procedure No.
31 <M/T>
Procedure No.
32 <A/T>

P.13A-867

<M/T>

P.13A-873

<A/T>

Engine: cranking ON

ECT
SENSOR

21

Engine
coolant
temperature
sensor

Ignition switch:
"ON" or with
engine running

Engine coolant
temperature is
−20°C (−4°F)

−20°C (−4°F)

Code No.
P0116, P0117,
P0118

P.13A-130

,

P.13A-144

,

P.13A-151

Engine coolant
temperature is
0

°C (32°F)

0

°C (32°F)

Engine coolant
temperature is
20

°C (68°F)

20

°C (68°F)

Engine coolant
temperature is
40

°C (104°F)

40

°C (104°F)

Engine coolant
temperature is
80

°C (176°F)

80

°C (176°F)

MUT-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) <2.4L>

13A-895

ECT
SENSOR

21

*6

Engine
coolant
temperature
sensor

Ignition switch:
"ON" or with
engine running

Engine coolant
temperature is
−20°C (−4°F)

−20°C (4°F)

Code No.
P0116, P0117,
P0118

P.13A-130

,

P.13A-144

,

P.13A-151

Engine coolant
temperature is
0

°C (32°F)

0

°C (32°F)

Engine coolant
temperature is
20

°C (68°F)

20

°C (68°F)

Engine coolant
temperature is
40

°C (104°F)

40

°C (104°F)

Engine coolant
temperature is
80

°C (176°F)

80

°C (176°F)

ENGINE
LOAD

37

Engine load
(volumetric
efficiency)

• Engine

coolant
temperature
:80

− 95

(176

−

203

°F)

• Lights,

electric
cooling fan
and all
accessories
: OFF

• Transaxle:

neutral (A/T:
"P" range)

Engine is idling

15

− 35 %

−

−

2,500 r/min

15

− 35 %

Racing

Volumetric
efficiency
increases
according to
amount of
rewing

ENGINE
LOAD

87

*6

Calculated
Load Value

Engine:
warming up

Engine is idling

12

− 32 %

−

−

2,500 r/min

10

− 30 %

MUT-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) <2.4L>

13A-896

ENGINE
SPEED

22

*6

Crankshaft
position
sensor
(engine
speed)

*1

• Engine: cranking

• Tachometer: connected

Engine speeds
displayed on
the scan tool
and
tachometer are
identical.

Code No.
P0335

P.13A-409

Engine: idling

Engine coolant
temperature is
−20°C (−4°F)

1,275

− 1,475

r/min

Engine coolant
temperature is
0

°C (32°F)

1,220

− 1,420

r/min

Engine coolant
temperature is
20

°C (68°F)

1,100

− 1,300

r/min

Engine coolant
temperature is
40

°C (104°F)

930

− 1,130

r/min

Engine coolant
temperature is
80

°C (176°F)

600

− 800

r/min

FUEL
TEMP

4A

Fuel
tempreature
sensor

In cooled srateignittion switch:
"ON"

approximately
the same as
the outdoor
temperature

Code No.
P0181, P0182,
P0183

P.13A-343

,

P

.13A-357

,

P.

13A-364

HO2S
BANK2
S1

11

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

200 millivolts
or less

Code No.
P0130, P0131,
P0132, P0133,
P0134

P.13A-214

,

P.13A-233

,

P.13A-241

,

P.13A-247

,

P.13A-253

When engine is
suddenly raced

600

− 1,000

millivolts

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
<M/T> or PCM
<A/T>)

Engine is idling

Voltage
changes
repeatedly
between 400
millivolts or
less and 600

−

1,000 millivolts

2,500 r/min

MUT-III
SCAN
TOOL
DISPLAY

ITEM
NO.

INSPECTION
ITEM

INSPECTION REQUIREMENT

NORMAL
CONDITION

INSPECTION
PROCEDURE
NO.

REFERENCE
PAGE