Mitsubishi Colt Ralliart. Manual — part 13

GENERAL INFORMATION

MULTIPORT FUEL INJECTION (MPI) <4A9>

13A-6

<CVT>

AK503590AB

5 Olil feeder
control valve

6 Camshaft position sensor

8 Engine coolant

temperature sensor

1 Injector

4 Throttle valve control servo

10 Throttle position sensor (main)
5 Throttle position sensor (sub)

3 Purge control

Canister

Air

2 EGR valve
(stepper motor)

7 Crank angle sensor

9 Detonation sensor

From
Fuel pump

4 Intake air
temperature
sensor

3 Manifold

absolute

pressure

sensor

Barometric

pressure

sensor

Engine-
CVT-ECU

Engine control relay
Fuel pump relay
A/C compressor relay
Throttle valve control
servo relay
Ignition coil
Fan control relay
Diagnosis output
Alternator G terminal
Oxygen sensor heater

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

1 Oxygen sensor (front)
2 Oxygen sensor (rear)
3 Manifold absolute
pressure sensor
4 Intake air temperature
sensor
5 Throttle position
sensor (sub)
6 Camshaft position sensor
7 Crank angle sensor
8 Engine coolant
temperature sensor
9 Detonation sensor
10 Throttle position
sensor (main)

1 Injector
2 EGR valve
(stepper motor)
3 Purge control
solenoid valve
4 Throttle valve
control servo
5 Oil feeder
control valve

solenoid valve

M

Catalytic
converter

2 Oxygen
sensor
(rear)

1 Oxygen
sensor
(front)

Main

Index

Group

TOC

SERVICE SPECIFICATIONS

MULTIPORT FUEL INJECTION (MPI) <4A9>

13A-7

SERVICE SPECIFICATIONS

M1131000301269

SEALANT

M1131000500851

Items

Specifications

Intake air temperature sensor
resistance k

Ω

−20°C

13

− 17

0

°C

5.3

− 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

Oxygen sensor output voltage (at racing) V

0.6

− 1.0

Oxygen sensor heater resistance (at 20

°C) Ω

5

− 30

Fuel pressure kPa

Approximately 324

Injector coil resistance (at 20

°C) Ω

14

− 15

Throttle valve control servo coil resistance (at 20

°C) Ω

0.3

− 100

Oil feeder control valve (at 20

°C) Ω

6.9

− 7.9

Item

Specified sealant

Remark

Engine coolant temperature sensor
Threaded portion

LOCTITE262 or equivalent

Drying sealant

Main

Index

Group

TOC

SPECIAL TOOLS

MULTIPORT FUEL INJECTION (MPI) <4A9>

13A-8

SPECIAL TOOLS

M1131000601840

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
n system)

D: M.U.T.-III

main harness
B (Vehicles
without CAN
communicatio
n system)

E: M.U.T.-III

measurement
adapter

F: M.U.T.-III

trigger harness

• Reading diagnosis code

• MPI system inspection

• Measurement of fuel pressure

CAUTION

For vehicles with 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.

MB991709

Test harness

• Measurement of voltage during

troubleshooting

• Inspection using an oscilloscope

MB991987

Power plant ECU
check harness

• Measurement of voltage during

Troubleshooting

• Inspection using an oscilloscope

• Inspection of the engine-ECU

<M/T> engine-CVT-ECU <CVT>
terminal voltage check

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) <4A9>

13A-9

MB991658

Test harness

• Measurement of voltage during

Troubleshooting

• Inspection using an oscilloscope

• Inspection of oxygen sensor

MB992001

Hose adaptor

• Measurement of fuel pressure

• Checking the spray condition of

injectors

MB991990

Quick connector

Measurement of fuel pressure

MB991637

Fuel pressure
gauge set

MB991981

Fuel pressure
gauge set

MB992076

Injector test set

• Measurement of fuel pressure

• Checking the spray condition of

injectors

Tool

Number

Name

Use

MB991658

MB992001

MB991990

MB991637

MB991981

MB992076

Main

Index

Group

TOC