Mitsubishi Outlander XL. Manual — part 214
ITEMS
SYMPTOM
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.
ZK600774
VEHICLE
SPEED
TIME
NORMAL
STUMBLE
INITIAL
ACCEL-
ERATOR
PEDAL
DEP-
RESSION
IDLING
AA00
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".
MULTIPORT INJECTION SYSTEM (MFI) <DIAGNOSIS>
13Ab-51
SYMPTOM CHART
DIAGNOSTIC TROUBLE CODE PROCEDURES
DTC P0031: Heated Oxygen Sensor Heater Control Circuit Low (bank 1, sensor 1)
M11310100161USA0000010000
ZK602828
1
3
2
4
2
1
4
3
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
10 111213 14 1516 17 1819 20
2 3 4
5 6 7 8 9
20A
WHITE
GRA
Y
WHITE
WHITE
WHITE
A-33X
MFI
RELAY
RELAY BOX
(ENGINE COMPARTMENT)
4
3
1
2
22
TO ECM
36
FUSIBLE LINK
AA00
RIGHT BANK HEATED
OXYGENSENSOR (FRONT)
1
2
3
4
TO ECM TO ECM
ENGINE
CONTROL
MODULE
33
4
B-03
MU802665
B-10
A-13
OFF
ON
RIGHT BANK HEATED OXYGEN SENSOR (FRONT) HEATER CIRCUIT
13Ab-52
MULTIPORT INJECTION SYSTEM (MFI) <DIAGNOSIS>
DIAGNOSTIC TROUBLE CODE PROCEDURES
ZK603589
MFI relay
A-33X
Connector: A-33X
AA00
ZK603591
ECM
B-10 (GR)
Connector: B-10
AA00
ZK603590AA00
Right bank heated
oxygen sensor (front)
Front exhaust
pipe RH
B-03 (GR)
Connector: B-03
ZK603650AA00
A-13
Connector: A-13
CIRCUIT OPERATION
⦆
Power is supplied from the MFI relay (terminal No.
4) to the right bank heated oxygen sensor (front)
heater.
⦆
The ECM (terminal No. 33) controls continuity to the
right bank heated oxygen sensor (front) heater by
turning the power transistor in the PCM "ON" and
"OFF".
TECHNICAL DESCRIPTION
⦆
The ECM checks whether the heater current is
within a specified range when the heater is
energized.
⦆
The ECM checks whether the heater voltage is
within a specified range when the heater is not
energized.
MULTIPORT INJECTION SYSTEM (MFI) <DIAGNOSIS>
13Ab-53
DIAGNOSTIC TROUBLE CODE PROCEDURES
DESCRIPTIONS OF MONITOR METHODS
Right bank heated oxygen sensor heater (front)
current or voltage is out of specified range.
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)
⦆
Not applicable
13Ab-54
MULTIPORT INJECTION SYSTEM (MFI) <DIAGNOSIS>
DIAGNOSTIC TROUBLE CODE PROCEDURES
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