Mitsubishi Outlander GS45X. Manual — part 667

MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS

TSB Revision

MULTIPORT FUEL INJECTION (MFI) <2.4L ENGINE>

13A-491

STEP 11. Check the evaporative emission canister for
vacuum leaks.
(1) Connect a hand vacuum pump to the evaporative emission

canister and plug the other nipples.

(2) Apply a pressure on the hand vacuum pump, and confirm

that air is maintained.

(3) Disconnect the hand vacuum pump and remove the plugs.
Q: Is the evaporative emission canister in good condition?

YES : Go to Step 12 .
NO : Replace the evaporative emission canister. Then go

to Step 13 .

STEP 12. Using scan tool MB991958, check the
evaporative emission system monitor test.

CAUTION

• During this test, the ECM automatically increases the

engine speed to 1,600 r/min or greater. Check that the
transaxle is set to "P" position.

(1) Turn the ignition switch to the "ON" position.
(2) Erase the DTCs using scan tool MB991958.
(3) Check that the fuel cap is securely closed (Tighten until

three clicks are heard).

(4) Start the engine.
(5) Select "System Test."
(6) Select "Evap Leak Mon."
(7) During the test, keep the accelerator pedal at the idle

position.

(8) Keep the engine speed and engine load within the specified

range. When the monitor test starts, the "In Progress" item
on scan tool MB991958 will change from "NO" to "YES".

(9) Turn the ignition switch to the "LOCK" (OFF) position.
Q: Is "Evap Leak Mon. Completed. Test Failed and DTCs

Set" displayed on scan tool MB991958?
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

Code Registration Judgment Table <Vehicles with
WCM>

P.42C-10

. Then go to Step 13 .

NO <"Evap Leak Mon. Completed. Test Passed" is
displayed on scan tool MB991958.> : The evaporative

emission system is working properly at this time. Go
to Step 13 .

NO <"Evap Leak Mon. Discontinued. Retest again from
the first" is displayed on scan tool MB991958.> : The

EVAP monitor has been interrupted during the test.
Turn the ignition switch to the "LOCK" (OFF) position
once, and repeat the monitoring from Step 12 .

AK704171

Plugs

AB

MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS

TSB Revision

MULTIPORT FUEL INJECTION (MFI) <2.4L ENGINE>

13A-492

STEP 13. Perform the OBD-II drive cycle.
(1) Confirm the repair by performing the appropriate drive cycle

(Refer to Diagnostic Function

− OBD-ll Drive Cycle −

Pattern 6

P.13A-11

).

(2) Read the DTC.
Q: Is DTC P0456 set?

YES : Repeat the troubleshooting.
NO : The procedure is complete.

DTC P0461: Fuel Level Sensor <FWD> or Fuel Level Sensor (main) <AWD> Circuit
Range/performance

.

TECHNICAL DESCRIPTION

• The fuel level sensor converts the rest of the fuel

to a voltage and seconds it to the combination
meter.

• The combination meter sends the data regarding

the rest of the fuel to the ECM.

• The ECM checks whether this data is within a

specified range.

.

DESCRIPTIONS OF MONITOR METHODS

• Detect malfunction if change of fuel level sensor

output voltage is small when sum of fuel injection
is large.

.

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

.

MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS

TSB Revision

MULTIPORT FUEL INJECTION (MFI) <2.4L ENGINE>

13A-493

DTC SET CONDITIONS

Logic Flow Chart

.

Check Condition, Judgement Criterion

• When the fuel consumption calculated from the

operation time of the injector amounts to 20 liters
(5.3 gal) <FWD> or 30 liters (7.9 gal) <AWD>, the
diversity of the amount of fuel in tank calculated
from the fuel level sensor is 2 liters (0.5 gal) or
less.

.

OBD-II DRIVE CYCLE PATTERN

None.

.

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

• Combination meters assembly failed.

• Fuel level sensor failed.

• ECM failed.

DIAGNOSIS

Required Special Tools:

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

• MB991824: V.C.I.

• MB991827: USB Cable

AK604341

Good

Malfunction

End

No

No

No

Indicated fuel level

change < 2L (0.5gal)

Reset fuel consumption accumulator

Start

Yes

Yes

Yes

Monitoring
conditions

Accumulate fuel consumption

through fuel injectors

Accumulated fuel consumption

will not reset when key-off/on.

Accumulated fuel >= specified

consumption value

MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS

TSB Revision

MULTIPORT FUEL INJECTION (MFI) <2.4L ENGINE>

13A-494

• MB991910: Main Harness A

STEP 1. Using scan tool MB991958, read the combination
meter diagnostic trouble code (DTC).

CAUTION

To prevent damage to scan tool MB991958, always turn the
ignition switch to the "LOCK" (OFF) position before con-
necting or disconnecting scan tool MB991958.
(1) Connect scan tool MB991958 to the data link connector.
(2) Turn the ignition switch to the "ON" position.
(3) Read the combination meter DTC.
(4) Turn the ignition switch to the "LOCK" (OFF) position.
Q: Is the combination meter-DTC set?

YES : Refer to GROUP 54A, Combination Meter

−

Diagnosis Trouble Code Chart

P.54A-34

NO : Go to Step 2.

STEP 2. Using scan tool MB991958, read the diagnostic
trouble code (DTC)

1. Turn the ignition switch to the "ON" position.
2. After the DTC has been deleted, read the DTC again.
3. Turn the ignition switch to the "LOCK" (OFF) position.

Q: Is DTC P0461 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 3.

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. Using scan tool MB991958, read the diagnostic
trouble code (DTC)

1. Turn the ignition switch to the "ON" position.
2. After the DTC has been deleted, read the DTC again.
3. Turn the ignition switch to the "LOCK" (OFF) position.

Q: Is DTC P0461 set?

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

AK700568AB

MB991824

MB991827

MB991910

Data link
connector