Mitsubishi Outlander GS45X. Manual - part 759

 

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Mitsubishi Outlander GS45X. Manual - part 759

 

 

MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS

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MULTIPORT FUEL INJECTION (MFI) <2.4L ENGINE>

13A-859

Wave Pattern Observation Points
Point: The power transistor control signal (ignition timing) is 

advanced when the engine speed is increased.

.

Examples of Abnormal Wave Patterns

Example 1 (Wave pattern during engine cranking)

• Cause of problem

Open-circuit in ignition primary circuit

• Wave pattern characteristics

Voltage value is too low.

CONDITION OF WAVE 
PATTERN BUILD-UP 
SECTION AND MAXIMUM 
VOLTAGE

PROBABLE CAUSE

Voltage value is too low

Open-circuit in ignition primary 
circuit

AK704330AB

0

5

OFF

ON

(ms)

Ignition period

Dwell section

Crankshaft position
sensor output wave
pattern

Power transistor
control signal
wave pattern

(Volt)

TDC

0

5

2 engine revolutions (1 camshaft revolution)

Standard wave pattern

AK604478

AB

Normal wave
pattern

ON-VEHICLE SERVICE

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MULTIPORT FUEL INJECTION (MFI) <2.4L ENGINE>

13A-860

ON-VEHICLE SERVICE

COMPONENT LOCATION

M1131002103665

NAME

SYMBOL

NAME

SYMBOL

Accelerator pedal position sensor U

Ignition coil

B

A/C compressor clutch relay

I

Injector

N

Battery current sensor 
(incorporating battery temperature 
sensor)

Q

Injector relay

I

Crankshaft position sensor

C

Intake camshaft position sensor

D

Data link connector

S

Intake engine oil control valve

J

Engine control module

H

Knock sensor

L

Engine coolant temperature 
sensor

F

Linear air-fuel ratio sensor

V

ETACS-ECU (incorporating fuel 
pump relay)

R

Malfunction Indicator Lamp (SERVICE 
ENGINE SOON or Check Engine Lamp)

T

Evaporative emission purge 
solenoid

O

Manifold absolute pressure sensor

M

Evaporative emission ventilation 
solenoid

Y

Mass airflow sensor (incorporating intake 
air temperature sensor)

G

Exhaust camshaft position sensor E

MFI relay

I

Exhaust engine oil control valve

A

Power steering pressure switch

K

Exhaust gas recirculation (EGR) 
valve

O

Starter relay

I

Fuel pump module (incorporating 
fuel level sensor and fuel tank 
temperature sensor)

X

Throttle actuator control motor relay

I

Fuel tank differential pressure 
sensor

X

Throttle body assembly (incorporating 
throttle position sensor and throttle 
actuator control motor)

P

Heated oxygen sensor (rear)

W

ON-VEHICLE SERVICE

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MULTIPORT FUEL INJECTION (MFI) <2.4L ENGINE>

13A-861

AK900664

R

T

S

U

V

W

X

Y

AC

P

Q

K

J

O

L

M

N

A

H

B

C

G

I

E

F

D

ON-VEHICLE SERVICE

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MULTIPORT FUEL INJECTION (MFI) <2.4L ENGINE>

13A-862

AK703696

A

AB

Exhaust engine
oil control valve

Exhaust 
manifold 
upper cover

AK703697

Ignition coil

AB

B

AK703698 AB

Crankshaft
position sensor

C

Cylinder head
cover assembly

AK703699 AB

Intake camshaft
position sensor

Engine oil filler cap

D

AK703700

AB

Exhaust camshaft
position sensor

Engine hanger

E

AK703701

Water hose

AB

Engine coolant
temperature sensor

F

AK703702

AB

Air cleaner
assembly

G

Mass airflow sensor

AK703704

AB

Engine control module

Air cleaner
assembly

H

 

 

 

 

 

 

 

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