Content .. 199 200 201 202 ..

Mitsubishi Lancer Evolution 7. Manual - part 201

MPI -

Troubleshooting

13A-103

Item

No.

Reference

page

Inspection

procedure

No.

Normal condition

Inspection contents

Inspection

item

Throttle

position

Ignition switch: “ON”

Set to idle position

535 - 735 mV

Code No.

P0120

13A-21

position

sensor

Gradually open

Increases in pro-

portion to throttle

opening angle

P0120

Open fully

4,500 - 5,000 mV

Battery

voltage

Ignition switch: “ON”

System voltage

Procedure

No. 22

13A-82

Cranking

signal

Ignition switch: “ON”

Engine: Stopped

OFF

Procedure

No.22

13A-82

signal

(ignition

switch-ST)

Engine: Cranking

No.22

Engine

coolant

temperature

Ignition switch: “ON”

or engine running

When engine coolant

temperature is -20_C

-20_C

Code No.

P0115

13A-19

temperature

sensor

When engine coolant

temperature is 0_C

0_C

When engine coolant

temperature is 20_C

20_C

When engine coolant

temperature is 40_C

40_C

When engine coolant

temperature is 80_C

80_C

Crank

angle

sensor

Engine: Cranking

Tachometer:

Connected

Compare the engine

speed readings on the

tachometer and the

MUT-II.

Accord

Engine: Idle

operation

When engine coolant

temperature is -20_C

1,300 - 1,500

r/min

When engine coolant

temperature is 0_C

1,300 - 1,500

r/min

When engine coolant

temperature is 20_C

1,300 - 1,500

r/min

When engine coolant

temperature is 40_C

1,150 - 1,350

r/min

When engine coolant

temperature is 80_C

600 - 900 r/min

24L

Vehicle

speed

sensor

Drive at 40 km/h

Approximately 40

km/h

Code No.

P0500

13A-43

MPI -

Troubleshooting

13A-104

Item

No.

Reference

page

Inspection

procedure

No.

Normal condition

Inspection contents

Inspection

item

Barometric

pressure

Ignition switch: ON

Altitude: 0 m

101 kPa

Code No.

P0105

13A-15

pressure

sensor

Altitude: 0 m

95 kPa

P0105

Altitude: 0 m

88 kPa

Altitude: 0 m

81 kPa

Power

steering

fluid

Engine: Idle operation

Steering wheel

stationary

OFF

Code No.

P0551

13A-46

fluid

pressure

switch

Steering wheel turning

A/C switch

Engine: Idle operation

(When A/C switch is

A/C switch: OFF

OFF

Procedure

No. 26

13A-92

(When A/C switch is

ON, A/C compressor

should be operating.)

A/C switch: ON

No. 26

Air flow

sensor

Engine: After

warm-up

Idle operation

Code No.

P0100

13A-13

sensor

reset

signal

warm up

3,000 r/min

OFF

P0100

Volumetric

efficiency

Engine coolant

temperature:

Idle operation

15 - 35%

efficiency

temperature:

85 - 95_C

Lightning and

2,500 r/min

15 - 35%

Lightning and

accessories:

OFF

Excessive

accelleration

According to ac-

celeration, volu-

metric efficiency

is increased.

Injectors*

Engine: Cranking

When engine coolant

temperature is 0_C

(injection is carried out

for all cylinders simulta-

neously)

25 - 37 ms

When engine coolant

temperature is 20_C

15 - 22 ms

When engine coolant

temperature is 80_C

4.2 - 6.3 ms

Injectors*

Engine coolant

temperature:

80 – 95_C

Engine: Idle operation

1.5 - 2.7 ms

80 – 95_C

Lamps, electric

cooling fan and

all accessories:

2,500 r/min

1.2 - 2.4 ms

all accessories:

OFF

Transmission:

Neutral

When engine is sud-

denly raced

Increases

MPI -

Troubleshooting

13A-105

Item

No.

Reference

page

Inspection

procedure

No.

Normal condition

Inspection contents

Inspection

item

Ignition ad-

vance

Engine: After

having warmed

Timing lamp is

set (The timing

Engine: Idle operation

0 - 13_BTDC

set. (The timing

lamp is set in

order to check

actual ignition

timing.)

2,500 r/min

20 - 40_BTDC

Idle speed

control

(stepper)

motor

position*

Engine coolant

temperature:

80 - 90_C

Lamps, electric

cooling fan and

all accessories:

OFF

Transmission:

A/C switch: OFF

2 - 25 STEP

Transmission:

Neutral

Engine: Idle

operation

When A/C switch

is ON, A/C

compressor

should be operat-

ing

A/C switch: OFF → ON

Increases by 10 -

70 steps

A/C relay

Engine: After having

warmed up/Engine is

idling

A/C switch: OFF

OFF (Compressor

clutch is not oper-

ating)

Procedure

No. 27

13A-92

A/C switch: ON

ON (Compressor

clutch is operat-

ing)

Oxygen

sensor

(rear)

Engine: After having

warmed-up

When engine is sud-

denly raced

0 and 600 - 1,000

mV alternate.

Code No.

P0136

13A-27

81L

Learned

value

Engine: After having warmed up, running with no

load at 2,500 r/min. (During air/fuel ratio

feedback control)

-12.5 - 12.5%

82L

Feedback

Engine: After having warmed up, running with no

load at 2,500 r/min. (During air/fuel ratio

feedback control)

-20 - 20%

87L

Engine

load

Engine: After having

warmed up

Idle operation

15 - 35%

load

warmed up

2,500 r/min

15 - 35%

MPI -

Troubleshooting

13A-106

Item

No.

Reference

page

Inspection

procedure

No.

Normal condition

Inspection contents

Inspection

item

A1L

Oxygen

sensor

(front)

Engine: After having

warmed up

(Air/fuel mixture is

made leaner when

When at 4,000 r/min,

engine is suddenly de-

celerated

200 mV or less

Code No.

P0130

13A-24

made leaner when

decelerating, and is

made richer when

racing.)

When engine is sud-

denly raced

600 - 1,000 mV

Engine: After having

warmed up

(By

using oxygen

sensor check air/fuel

Idle operation

400 mV or less ↔

600 - 1,000 mV

(altered)

sensor, check air/fuel

mixture as well as

control status by

engine-ECU)

2,500 r/min

A2L

Oxygen

sensor

(rear)

Engine: After having

warmed up

When engine is sud-

denly raced

0 and 600 - 1,000

mV alternate.

Code No.

P0136

13A-27

8AL

Throttle

position

sensor

Engine: After

having warmed

Release the accelera-

tor pedal.

8 - 16%

Code No.

P0120

13A-21

sensor

(Throttle

position

opening

angle)

Ignition switch:

“ON” (Engine

stopped)

Depress the accelera-

tor pedal gradually.

Increase in re-

sponse to the

pedal depression

stroke.

Depress the accelera-

tor pedal fully.

80 - 100%

NOTE

Items marked by L will not displayed if service data is selected on the check mode.

Content .. 199 200 201 202 ..