Mitsubishi L200. Manual — part 199

ON-VEHICLE SERVICE

DIESEL FUEL

13A-592

AKB00329

R

S

T

R

S

T

T

Z

Z

Y

Y

<L. H. drive vehicles>

<R. H. drive vehicles>

V

V

W

W

U

U

X

X

<2WD-M/T>

<4WD-M/T>

<4WD-A/T>

a

b

AB

ON-VEHICLE SERVICE

DIESEL FUEL

13A-593

ENGINE CONTROL RELAY CONTINUITY
CHECK

M1133008300459

ENGINE COOLANT TEMPERATURE
SENSOR CHECK

M1133005000404

1. Remove the engine coolant temperature sensor

using the special tool engine coolant temperature
sensor wrench (MB992042).

2. With temperature sensing portion of engine

coolant temperature sensor immersed in hot
water, check resistance.

Standard value:

14

− 17 kΩ (at −20°C)

5.1

− 6.5 kΩ (at 0°C)

2.1

− 2.7 kΩ (at 20°C)

0.9

− 1.3 kΩ (at 40°C)

0.48

− 0.68 kΩ (at 60°C)

0.26

− 0.36 kΩ (at 80°C)

3. If the resistance deviates from the standard value

greatly, replace the sensor.

4. Apply sealant to threaded portion.

Specified sealant:

3M NUT Locking Part No. 4171 or equivalent

5. Tighten the engine coolant temperature sensor to

the specified torque, using engine coolant
temperature sensor wrench, special tool
(MB992042).

Tightening torque: 29

± 10 N⋅m

Tester
Connection
Terminal

Battery Voltage

Normal State

1

− 2

No voltage

Continuity

3

− 4

No voltage

No continuity

Voltage (Connect
positive (+) terminal of
battery to terminal No.
1 and negative (

−)

terminal of battery to
terminal No. 2.)

Continuity (2

Ω

or less)

AK501444

1

2

3
4

Equipment side
connector

AB

Engine control
relay

AK501445

1 2

Equipment side
connector

AB

Engine coolant
temperature sensor

AK503116 AC

MB992042

AKX01622

AKX01623AD

ON-VEHICLE SERVICE

DIESEL FUEL

13A-594

INJECTOR CHECK

M1133008100314

1. Disconnect the injector connector.
2. Measure the resistance between terminals No. 1

and No. 2.

Standard value: Approximately 0.45

Ω (at

20

°C)

3. If not within the standard value, replace the

injector. After replacing the injector, register the
injector identification code and learn fuel injection.
(Refer to GROUP 00

− Precautions Before

Service

− What The common Rail Engine Learns

).

INTAKE AIR TEMPERATURE SENSOR No.
1 CHECK

M1133010300296

1. Disconnect the air flow sensor connector.
2. Measure resistance between terminals No. 1 and

No. 2.

Standard value:

13

− 17 kΩ (at −20°C)

5.4

− 6.6 kΩ (at 0°C)

2.3

− 3.0 kΩ (at 20°C)

1.0

− 1.5 kΩ (at 40°C)

0.56

− 0.76 kΩ (at 60°C)

0.31

− 0.43 kΩ (at 80°C)

3. Remove the air flow sensor

4. Measure resistance while heating the sensor

using a hair drier.

Normal condition:

5. If the value deviates from the standard value or

the resistance remains unchanged, replace the air
flow sensor assembly.

6. Install the air flow sensor and tighten it to the

specified torque.

Tightening torque: 0.7

± 0.1 N⋅m

INTAKE AIR TEMPERATURE SENSOR No.
2 CHECK <Except Euro5>

M1133010400301

1. Disconnect the intake air temperature sensor No.

2 connector.

2. Measure resistance between terminals No. 1 and

No. 2.

Standard value:

13

− 18 kΩ (at −20°C)

5.1

− 6.9 kΩ (at 0°C)

2.0

− 3.0 kΩ (at 20°C)

0.9

− 1.5 kΩ (at 40°C)

0.40

− 0.78 kΩ (at 60°C)

0.23

− 0.42 kΩ (at 80°C)

3. Remove the intake air temperature sensor No. 2

AKA00359

1

2

Injector

AB

Equipment side
connector

AKA00360

5

4

3

2

1

Air flow sensor
(incorporating intake
air temperature sensor
No.1)

Equipment side
connector

AB

Temperature (

°C)

Resistance (k

Ω)

Higher

Smaller

AK603026AB

No. 1 intake
air temperature
sensor

AK501450

1 2

Equipment side
connector

AB

Intake air temperature
sensor No.2

ON-VEHICLE SERVICE

DIESEL FUEL

13A-595

4. Measure resistance while heating the sensor

using a hair drier.

Normal condition:

5. If the value deviates from the standard value or

the resistance remains unchanged, replace the
intake air temperature sensor No. 2 sensor
assembly.

6. Install the air flow sensor and tighten it to the

specified torque.

Tightening torque: 13.5

± 1.5 N⋅m

SUCTION CONTROL VALVE CHECK

M1133010500290

1. Disconnect the suction control valve connector.
2. Measure resistance between terminal No. 1 and

No. 2

Standard value: Approximately 2.1

Ω (at 20

°C)

3. If not within the standard value, replace the

suction control valve. After replacing the suction
control valve, learn the supply pump. (Refer to
GROUP 00

− Precautions Before Service − What

The common Rail Engine Learns ).

FUEL TEMPERATURE SENSOR CHECK

M1133006800317

1. Disconnect the fuel temperature sensor

connector.

2. Measure resistance between terminal No. 1 and

No. 2

Standard value: Approximately 2.0

− 3.0 kΩ

(at 20

°C)

3. If not within the standard value, replace the supply

pump assembly. After replacing the supply pump,
learn the supply pump. (Refer to GROUP 00

−

Precautions Before Service

− What The common

Rail Engine Learns ).

COMMON RAIL CHECK

M1133010600253

CAUTION

High pressure fuel is supplied to the common
rail. It is dangerous to remove the rail pressure
sensor and rail pressure limiter from the com-
mon rail because it may cause fuel leaks. Do not
remove the rail pressure sensor and rail pressure
limiter from the common rail.

1. Visually check the common rail for cracks,

damage, and corrosion.

2. If an abnormality is found, replace the common

rail.

Temperature (

°C)

Resistance (k

Ω)

Higher

Smaller

AK501451

AB

Intake air temperature
sensor No.2

AK501452

1

2

Equipment side
connector

AB

Suction control
valve

AK501453

1 2

Equipment side
connector

AB

Fuel temperature sensor

AK501454

AB

Common rail