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
TSB Revision
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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