Mitsubishi Colt Ralliart. Manual — part 670

GENERAL INFORMATION

MULTIPORT FUEL INJECTION (MPI) <4G1>

13B-5

AK600529AB

6 Oil feeder control valve

1

Oxygen sensor
(front)

8

Engine coolant

temperature sensor

3

Throttle valve control servo

10

Throttle position sensor

(main)

5

Throttle position sensor

(sub)

2

Purge control

solenoid valve

4

Fuel pressure
solenoid valve

7

Crank angle sensor

9

Detonation sensor

4

Intake air

temperature
sensor

3

Air flow sensor

Waste gate
actuator

Canister

Check
valve

Air by-pass valve

Fuel pressure regulator

From
fuel pump

To fuel
tank

Catalytic converter

Catalytic
converter

Air
inlet

Oxygen sensor (front)
Oxygen sensor (rear)
Air flow sensor
Intake air temperature
sensor
Throttle position
sensor

(sub)

Camshaft position
sensor
Crank angle sensor
Engine coolant
temperature sensor
Detonation sensor
Throttle position
sensor

(main)

Power supply
Ignition switch-IG
Ignition switch-ST
Accelerator pedal
position sensor
(main)
Accelerator pedal
position sensor
(sub)
Alternator FR
terminal
Stop lamp switch
Clutch switch

Engine-
ECU

Engine control relay
Fuel pump relay
A/C compressor relay
Throttle valve
control servo relay
Ignition coil
Cooling fan

control

relay

(Hi, Lo)
Diagnosis output
Alternator G terminal
Oxygen sensor (front)
heater
Oxygen sensor (rear)
heater

Barometric
pressure
sensor

1 Injector

5 Waste gate
solenoid valve

2

Oxygen sensor

(rear)

6

Camshaft position sensor

1
2
3
4

5

6

7
8

9

10

Injector
Purge control
solenoid valve
Throttle valve
control servo
Fuel pressure
solenoid valve
Waste gate
solenoid valve
Oil feeder control
valve

1
2

3

4

5

6

Main

Index

Group

TOC

SERVICE SPECIFICATIONS

MULTIPORT FUEL INJECTION (MPI) <4G1>

13B-6

SERVICE SPECIFICATIONS

M1131000301601

SEALANT

M1131000500840

Items

Specifications

Intake air temperature sensor
resistance k

Ω

−20°C

13

− 17

0

°C

5.7

− 6.7

20

°C

2.3

− 3.0

40

°C

1.0

− 1.5

60

°C

0.56

− 0.76

80

°C

0.30

− 0.42

Engine coolant temperature
sensor resistance k

Ω

−20°C

14

− 17

0

°C

5.1

− 6.5

20

°C

2.1

− 2.7

40

°C

0.9

− 1.3

60

°C

0.48

− 0.68

80

°C

0.26

− 0.36

Fuel pressure kPa

Vacuum hose connected

Approximately 230

Vacuum hose disconnected

289

− 299

Injector coil resistance (at 20

°C) Ω

10.5

− 13.5

Oxygen sensor output voltage V

0.6

− 1.0

Oxygen sensor heater
resistance (at 20

°C) Ω

Front

5

− 30

Rear

5

− 30

Throttle valve control servo coil resistance (at 20

°C) Ω

0.3

− 100

Oil feeder control valve resistance (at 20

°C) Ω

6.9

− 7.9

Fuel pressure solenoid valve resistance (at 20

°C) Ω

29

− 35

Item

Specified sealant

Remark

Engine coolant temperature sensor
threaded portion

3M Nut Locking Part No. 4171 or equivalent Drying sealant

Main

Index

Group

TOC

SPECIAL TOOLS

MULTIPORT FUEL INJECTION (MPI) <4G1>

13B-7

SPECIAL TOOLS

M1131000601851

Tool

Number

Name

Use

MB991955
A: MB991824
B: MB991827
C: MB991910
D: MB991911
E: MB991825
F: MB991826

M.U.T.-III sub

assembly

A: Vehicle

communicatio
n interface
(V.C.I.)

B: M.U.T.-III USB

cable

C: M.U.T.-III

main harness
A (vehicles
with CAN
communicatio
ns system)

D: M.U.T.-III

main harness
B (vehicles
without CAN
communicatio
ns system)

E: M.U.T.-III

measurement
adapter

F: M.U.T.-III

trigger harness

• Reading diagnosis code

• Inspection of MPI system

• Measurement of fuel pressure

CAUTION

For vehicles with a CAN
communication, use M.U.T.-III main
harness A to send simulated vehicle
speed. If you connect M.U.T.-III main
harness B instead, the CAN
communication does not function
correctly.

MB991987

Power plant ECU
check harness

• Measurement of voltage during

troubleshooting

• Measurement of engine-ECU

terminal voltage

• Inspection using an oscilloscope

MB991709

Test Harness

• Measurement of voltage for

troubleshooting

• Inspection using an oscilloscope

MB991910

MB991826

MB991955

MB991911

MB991824

MB991827

MB991825

A

B

C

D

E

F

DO NOT USE

MB991987

Main

Index

Group

TOC

SPECIAL TOOLS

MULTIPORT FUEL INJECTION (MPI) <4G1>

13B-8

MB991658

Test Harness

• Measurement of voltage during

troubleshooting

• Inspection using an oscilloscope

• Inspection of oxygen sensor

MB991637

Fuel pressure
gauge set

Measurement of fuel pressure

MB991981

Fuel pressure
gauge set

MB991990

Quick connector

MD998706

Injector test set

• Checking the spray condition of

injectors

• Measurement of fuel pressure

MD992001

Hose adapter

MB991976

Injector holder

Checking the spray condition of
injectors

MB991607

Injector test
harness

Tool

Number

Name

Use

MB991658

MB991637

MB991981

MB991990

MD998706

MB992001

MB991976

MB991607

Main

Index

Group

TOC