Mitsubishi Outlander GS45X. Manual — part 781

MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS

TSB Revision

MULTIPORT FUEL INJECTION (MFI) <3.0L ENGINE>

13B-57

At driving

Hesitation Sag

"Hesitation" is the delay in
response of the vehicle speed
(engine speed). This occurs
when the accelerator is
depressed in order to accelerate
from the speed at which the
vehicle is now traveling, or a
temporary drop in vehicle speed
(engine speed) during such
acceleration.
Serious hesitation is called
"sag".

Poor acceleration Poor acceleration is inability to obtain an acceleration corresponding to

the degree of throttle opening, even though acceleration is smooth. Also
the inability to reach maximum speed.

Stumble

Engine speed increase is
delayed when the accelerator
pedal is initially depressed for
acceleration.

Shock

The feeling of a comparatively large impact or vibration when the engine
is accelerated or decelerated.

Surge

This is slight acceleration and deceleration feel usually felt during
steady, light throttle cruise. Most notable under light loads.

Knocking

A sharp sound during driving, which sounds like a hammer striking the
cylinder walls. It makes poor driveability.

At stopped

Run on
("Dieseling")

The condition in which the engine continues to run after the ignition
switch is turned to the "LOCK" (OFF) position. Also called "dieseling".

ITEMS

SYMPTOM

AK700112

Vehicle
speed

Time

Normal

Hesitation

Initial
accele-
rator
pedal
depre-
ssion

AB

Sag

AK700113

Vehicle
speed

Time

Normal

Stumble

Initial
accele-
rator
pedal
depre-
ssion

AB

Idling

MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS

TSB Revision

MULTIPORT FUEL INJECTION (MFI) <3.0L ENGINE>

13B-58

DIAGNOSTIC TROUBLE CODE PROCEDURES

DTC P001A: Camshaft Profile Control (Engine Oil Control Valve) Circuit

2

1

AK700159

1

2

3 4 5 6 7 8 9 10 11 12 13 14 15 16

17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32

33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48

49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64

1

3

2

4

1

10 111213 14 1516 17 1819 20

2 3 4

5 6 7 8 9

1

2

1

B-106

MU802779

B-10

20A

WHITE

WHITE

WHITE

VIOLET

WHITE

A-33X

4

3

1

2

22

OFF

ON

AB

36

FUSIBLE LINK

4

A-13

RELAY BOX
(ENGINE COMPARTMENT)

TO ECM

ENGINE
CONTROL
MODULE

MFI
RELAY

ENGINE OIL CONTROL VALVE CIRCUIT

ENGINE OIL
CONTROL VALVE

MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS

TSB Revision

MULTIPORT FUEL INJECTION (MFI) <3.0L ENGINE>

13B-59

.

CIRCUIT OPERATION

• The engine oil control valve power is supplied

from the MFI relay (terminal No. 2).

• The ECM controls ground engine oil control valve

by turning the power transistor in the ECM "ON"
and "OFF".

.

TECHNICAL DESCRIPTION

• The engine oil pressure switches the cams to

operate the MIVEC system in the low-speed or
high-speed mode in accordance with the signals
from the ECM.

.

DESCRIPTIONS OF MONITOR METHODS

Circuit voltage stays low when solenoid status is off.

.

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

• Mass airflow sensor

• Engine coolant temperature sensor

• Throttle position sensor

• Injection valve

.

AK900152

B-106 (B)

Connector: B-106

AE

Engine oil
control valve

AK700399AB

MFI relay

A-33X

Connector: A-33X

AK700401AB

ECM

B-10 (GR)

Connector: B-10

AK900602

Connector: A-13

A-13

AB

MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS

TSB Revision

MULTIPORT FUEL INJECTION (MFI) <3.0L ENGINE>

13B-60

DTC SET CONDITIONS

Logic Flow Chart

.

Check Conditions

• Ignition switch: "ON"

• Engine oil control valve is OFF.

• Battery positive voltage is between10 and 16.5

volts.

• 0.1 seconds has elapsed after the above men-

tioned conditions have been met.

Judgment Criterion

• The ECM terminal voltage of engine oil control

valve circuit is less than 1.5 volts for 2 seconds.

.

OBD-II DRIVE CYCLE PATTERN

Refer to Diagnostic Function

− OBD-II Drive Cycle −

Pattern 22

P.13B-11

.

.

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

• Connector damage.

• Harness damage.

• Engine oil control valve failed.

• ECM failed.

DIAGNOSIS

Required Special Tools:

• MB991958: Scan Tool (M.U.T.-III Sub Assembly)

• MB991824: V.C.I.

• MB991827: USB Cable

• MB991910: Main Harness A

AK700498

Good

Malfunction

Start

End

No

No

Yes

Yes

Yes

No

Monitoring

conditions

Continuous

failure for 2secs

Circuit voltage

< 1.5V