Mitsubishi Outlander GS45X. Manual — part 564

MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS

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MULTIPORT FUEL INJECTION (MFI) <2.4L ENGINE>

13A-79

TROUBLESHOOTING HINTS (The most
likely causes for this code to be set are:)

• Timing chain in out of place.

• Loose timing chain.

• Intake variable valve timing sprocket tooth com-

ing off.

• ECM failed.

DIAGNOSIS

Required Special Tools

• MB991709: Test Harness

• MB992110: Power Plant ECU Check Harness

MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS

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MULTIPORT FUEL INJECTION (MFI) <2.4L ENGINE>

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STEP 1. Using the oscilloscope, measure output wave
pattern at crankshaft position sensor and intake camshaft
position sensor.
(1) Disconnect the crankshaft position sensor connector B-119

and connect the test harness special tool (MB991709)
between the separated connectors.

(2) Connect the oscilloscope probe to the crankshaft position

sensor side connector terminal No. 3.

(3) Disconnect the intake camshaft position sensor connector

B-123, and connect test harness special tool (MB991709)
between the separated connectors.

(4) Connect the oscilloscope probe to the intake camshaft

position sensor side connector terminal No. 3.
NOTE: When measuring with the ECM side connector, dis-
connect all ECM connectors. Connect the check harness
special tool (MB992110) between the separated connec-
tors. Then connect the oscilloscope probe to the check har-
ness connector terminal No. 8 (crankshaft position sensor)
and terminal No. 14 (intake camshaft position sensor).

(5) Start the engine and run at idle.

(6) Check the waveform.

• The waveform should show a pattern similar to the illus-

tration.

(7) Turn the ignition switch to the "LOCK" (OFF) position.
Q: Is the waveform normal?

YES : Go to Step 2.
NO : Go to Step 3.

AK704086

3

2

1

AB

Crankshaft position
sensor connector

Oscilloscope

MB991709

AK604465

3

2

1

AD

Intake camshaft position
sensor connector

Oscilloscope

MB991709

AK704578AB

2 engine revolutions

Normal waveform

(Volt)

5

0

5

0

Crankshaft position sensor
output wave pattern

Intake camshaft position sensor
output wave pattern

MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS

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MULTIPORT FUEL INJECTION (MFI) <2.4L ENGINE>

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STEP 2. Check the trouble symptoms.
(1) Carry out a test drive with the drive cycle pattern. Refer to

Diagnostic Function

− OBD-II Drive Cycle − Pattern 20

P.13A-11

.

(2) Check the diagnostic trouble code (DTC).
Q: Is DTC P0016 set?

YES : Replace the ECM. When the ECM is replaced,

register the ID code. Refer to GROUP 42B, Diagnosis
− ID Code Registration Judgment Table <Vehicles

with KOS>

P.42B-15

or GROUP 42C, Diagnosis

− ID

Codes Registration Judgment Table <Vehicles with
WCM>

P.42C-10

. Then go to Step 4.

NO : It can be assumed that this malfunction is intermittent.

Refer to GROUP 00, How to Use Troubleshooting/
Inspection Service Points

− How to Cope with

Intermittent Malfunctions

P.00-15

.

STEP 3. Check timing mark on the timing chain.
Q: Is timing chain in out of place?

YES : Repair it. Then initialize the learning value for the

elongation of the timing chain. Refer to GROUP 00,
Precautions Before Service

− Timing Chain Learned

Value Reset

P.00-55

. Then go to Step 4.

NO : Check the following items, and repair or replace the

defective items.

a. Check the timing chain loose.
b. Check the intake variable valve timing

sprocket tooth coming off.

Then initialize the learning value for the elongation of

the timing chain. Refer to GROUP 00, Precautions
Before Service

− Timing Chain Learned Value

Reset

P.00-55

. Then go to Step 4.

STEP 4. Test the OBD-II drive cycle.
(1) Carry out a test drive with the drive cycle pattern. Refer to

Diagnostic Function

− OBD-II Drive Cycle − Pattern 20

P.13A-11

.

(2) Check the diagnostic trouble code (DTC).
Q: Is DTC P0016 set?

YES : Retry the troubleshooting.
NO : The inspection is complete.

MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS

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MULTIPORT FUEL INJECTION (MFI) <2.4L ENGINE>

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DTC P0017: Crankshaft/camshaft (exhaust) Position Sensor Phase Problem

.

TECHNICAL DESCRIPTION

• The ECM checks the variable valve timing sys-

tem for malfunction.

.

DESCRIPTIONS OF MONITOR METHODS

The close timing of the exhaust valve is faster or

slower than the specified value.

.

MONITOR EXECUTION

Continuous

.

MONITOR EXECUTION CONDITIONS
(Other monitor and Sensor)

Other Monitor (There is no temporary DTC stored

in memory for the item monitored below)

• Not applicable

Sensor (The sensor below is determined to be

normal)

• Camshaft position sensor

• Crankshaft position sensor

• Engine coolant temperature sensor

• Throttle position sensor

• Engine oil control valve

.