Mitsubishi Montero (2004+). Manual — part 382

SPECIFICATIONS

TSB Revision

MULTIPORT FUEL INJECTION (MFI)

13A-1015

SPECIFICATIONS

FASTENER TIGHTENING SPECIFICATIONS

M1131011600551

GENERAL SPECIFICATION(S)

M1131000200560

ITEM

SPECIFICATION

Engine coolant temperature sensor

29

± 10 N⋅m (22 ± 7 ft-lb)

Fuel pipe attaching bolts

9.0

± 1.0 N⋅m (80 ± 9 in-lb)

Fuel pressure regulator attaching bolts

9.0

± 1.0 N⋅m (80 ± 9 in-lb)

Fuel rail mounting bolts

12

± 1 N⋅m (102 ± 13 in-lb)

Fuel high-pressure hose attaching bolts

5.0

± 1.0 N⋅m (44 ± 9 in-lb)

Throttle body mounting bolts

13

± 2 N⋅m (115 ± 18 in-lb)

PCM bracket bolt

5.0

± 1.0 N⋅m (44 ± 9 in-lb)

PCM bracket mounting bolt

5.0

± 1.0 N⋅m (44 ± 9 in-lb)

ITEMS

SPECIFICATIONS

Throttle body

Throttle bore mm (in.)

65 (2.56)

Throttle position sensor

Hall element type

Throttle actuator control motor

DC motor type, having brushes

Powertrain
control module
(PCM)

Identification model No.

E6T38377

Sensors

Volume airflow sensor

Karman vortex type

Barometric pressure sensor

Semiconductor type

Intake air temperature sensor

Thermistor type

Engine coolant temperature sensor

Thermistor type

Heated oxygen sensor

Zirconia type

Accelerator pedal position sensor

Variable resistor type

Accelerator pedal position switch

Contact switch type

Transmission range switch

Contact switch type

Camshaft position sensor

Electromagnetic resistance element
type

Crankshaft position sensor

Hall element type

Knock sensor

Piezoelectric type

Power steering pressure switch

Contact switch type

Manifold absolute pressure sensor

Semiconductor type

SPECIFICATIONS

TSB Revision

MULTIPORT FUEL INJECTION (MFI)

13A-1016

SERVICE SPECIFICATION(S)

M1131000300686

SEALANT AND ADHESIVE

M1131000500420

Actuators

Multiport fuel injection (MFI) relay

Contact switch type

Fuel pump relay

Contact switch type

Throttle actuator control motor relay

Contact switch type

Injector type and number

Electromagnetic type, 6

Injector identification mark

GDH305

EGR valve

Stepper motor type

Evaporative emission purge solenoid

Duty cycle type solenoid valve

Fuel pressure
regulator

Regulator pressure kPa (psi)

335 (47.6)

ITEMS

SPECIFICATIONS

ITEMS

STANDARD VALUE

Accelerator pedal position sensor adjusting voltage mV

0.905

− 1.165

Basic idle speed r/min

700

± 50

Fuel pressure kPa (psi)

Vacuum hose
disconnected

330

− 350 (47 − 50) at curb idle

Vacuum hose connected Approximately 270 (38) at curb

idle

Intake air temperature sensor resistance k

Ω -20°C (-4°F)

13

− 17

0

°C (32°F)

5.3

− 6.7

20

°C (68°F)

2.3

− 3.0

40

°C (104°F)

1.0

− 1.5

60

°C (140°F)

0.56

− 0.76

80

°C (176°F)

0.30

− 0.42

Engine coolant temperature sensor
resistance k

Ω

-20

°C (-4°F)

14

− 17

0

°C (32°F)

5.1

− 6.5

20

°C (68°F)

2.1

− 2.7

40

°C (104°F)

0.9

− 1.3

60

°C (140°F)

0.48

− 0.68

80

°C (176°F)

0.26

− 0.36

Throttle position sensor resistance k

Ω

2.0

− 4.0

Accelerator pedal position sensor (main, sub) resistance k

Ω

3.5

− 6.5

Heated oxygen sensor output voltage V

0.6

− 1.0

Heated oxygen sensor heater resistance

Ω HO

2

S (front)

4.5

− 8.0

HO

2

S (rear)

11

− 18

Injector coil resistance

Ω

13

− 16 [at 20°C (68°F)]

Throttle actuator control motor coil resistance

Ω

0.3

− 100 [at 20°C (68°F)]

ITEM

SPECIFIED SEALANT

Engine coolant temperature sensor threaded portion 3M

 AAD part number 8731or equivalent

15-1

GROUP 15

INTAKE AND

EXHAUST

CONTENTS

GENERAL DESCRIPTION. . . . . . . . .

15-2

INTAKE AND EXHAUST DIAGNOSIS

15-2

INTRODUCTION. . . . . . . . . . . . . . . . . . . . .

15-2

TROUBLESHOOTING STRATEGY . . . . . .

15-2

SYMPTOM CHART. . . . . . . . . . . . . . . . . . .

15-2

SYMPTOM PROCEDURES . . . . . . . . . . . .

15-2

SPECIAL TOOL . . . . . . . . . . . . . . . . .

15-3

ON-VEHICLE SERVICE. . . . . . . . . . .

15-4

INTAKE MANIFOLD TUNING SYSTEM
CHECK . . . . . . . . . . . . . . . . . . . . . . . . . . . .

15-4

INTAKE MANIFOLD TUNING SOLENOID
CHECK . . . . . . . . . . . . . . . . . . . . . . . . . . . .

15-4

VACUUM TANK CHECK . . . . . . . . . . . . . .

15-5

AIR CLEANER . . . . . . . . . . . . . . . . . .

15-6

REMOVAL AND INSTALLATION . . . . . . . .

15-6

INTAKE MANIFOLD . . . . . . . . . . . . . .

15-7

REMOVAL AND INSTALLATION . . . . . . . .

15-7

INSPECTION. . . . . . . . . . . . . . . . . . . . . . . .

15-11

EXHAUST MANIFOLD . . . . . . . . . . . .

15-12

REMOVAL AND INSTALLATION . . . . . . . .

15-12

INSPECTION. . . . . . . . . . . . . . . . . . . . . . . .

15-12

EXHAUST PIPE AND MAIN
MUFFLER . . . . . . . . . . . . . . . . . . . . . .

15-13

REMOVAL AND INSTALLATION . . . . . . . .

15-13

SPECIFICATIONS . . . . . . . . . . . . . . .

15-15

FASTENER TIGHTENING
SPECIFICATIONS. . . . . . . . . . . . . . . . . . . .

15-15

SERVICE SPECIFICATION . . . . . . . . . . . .

15-16

GENERAL DESCRIPTION

TSB Revision

INTAKE AND EXHAUST

15-2

GENERAL DESCRIPTION

M1151000100338

The exhaust pipe is of three-piece type.

INTAKE AND EXHAUST DIAGNOSIS

INTRODUCTION

M1151006900279

Intake leaks usually create driveability issues that
are not obviously related to the intake system.
Exhaust leaks or abnormal noise is caused by cracks
gaskets and fittings, or by when the exhaust pipe or
muffler is damaged due to impacts during travel. The
exhaust leaks from these sections and causes the
exhaust noise to increase. There may be cases
when the system contacts the body and vibration
noise is generated.

TROUBLESHOOTING STRATEGY

M1151007000279

Use these steps to plan your diagnostic strategy. If
you follow them carefully, you will be sure that you
have exhausted most of the possible ways to find an
intake or exhaust fault.
1. Gather information from the customer.

2. Verify that the condition described by the

customer exists.

3. Find the malfunction by following the Symptom

Chart.

4. Verify malfunction is eliminated.

SYMPTOM CHART

M1151007100276

SYMPTOM PROCEDURES

INSPECTION PROCEDURE 1: Exhaust Leakage

DIAGNOSIS

STEP 1. Start the engine. Have an assistant stay
in the driver’s seat. Raise the vehicle on a hoist.
Have the assistant rev the engine while
searching for exhaust leaks.

Q: Is the exhaust leaking?

YES :

Go to Step 2.

NO :

The procedure is complete.

STEP 2. Check the gasket for cracks, damage.

Q: Is the gasket damaged?

YES :

Replace the gasket, then go Step 1.

NO :

Go to Step 3.

STEP 3. Check for loosening in each coupling
section.

Q: Is there any loosening in each section?

YES :

Tighten, then go to Step 1.

NO :

There is no action to be taken.

SYMPTOM

INSPECTION PROCEDURE

REFERENCE PAGE

Exhaust Leakage

1

P.15-2

Abnormal Noise

2

P.15-3