Mitsubishi Outlander XL. Manual — part 317

DTC SET CONDITIONS

Logic Flow Chart <0.04 in leak monitor>

ZK603431

Pt : Threshold value

Close cani ster vent solenoid & purge solenoid

Open cani ster vent solenoi d

Open purge solenoi d

N = N + 1

N = 0

PF2 = PFT

Close purge solenoi d

Gross leak

Monitoring condi tions?

100 s ecs have

Pass ed?

Malfunction

(Gross leak)

End

PF1 = Fuel tank press ure (PFT)

Fuel sloshing detected

Monitoring condi tions

20 s ecs have pass ed?

20 s ecs have pass ed?

PFT = PF2

－

PF1

> 46 mmAq

PFT > -200mmAq

Start

Yes

Yes

Yes

Yes

Yes

Yes

Yes

No

No

No

No

No

No

Yes

No

No

No

Yes

Yes

Yes

Yes

Yes

Yes

Yes

No

No

No

No

No

No

600 s ecs have

Pass ed?

Open cani ster

Vent solenoi d

End

Malfunction
(0.040 leak)

N = 3

Logic Flow Chart

AA00

Open cani ster vent solenoi d

Good

Open cani ster vent solenoi d

10 secs have pass ed?

PFT < -400mmAq

PFT (n) > PFT (n-1)

PFT2 > Pt

20 s ecs have

Pass ed a fter PF3 was

Measured?

End

PF3 = PFT

PF4 = PFT

PFT2 = PF4

－

PF3

MULTIPORT INJECTION SYSTEM (MFI) <DIAGNOSIS>

13Ab-463

DIAGNOSTIC TROUBLE CODE PROCEDURES

Check Conditions
Remaining fuel amount is 15 - 40 percent of capacity
(fuel level sensor output signal voltage is 1.4 - 2.4
volts).

Conditions A: At Start up

｠

Intake air temperature is 36°C (97°F) or less when
the engine is started.

｠

The engine coolant temperature is 36°C (97°F) or
less when the engine is started.

Conditions B: For Test to Run

｠

The fuel temperature is less than 36°C (97°F), and
less than 13 minutes have elapsed since the engine
was started.

｠

Engine coolant temperature is greater than 60°C
(140°F).

｠

Power steering oil pressure is less than 2 MPa (290
psi).

｠

Barometric pressure is greater than 76 kPa (11 psi).

｠

Fuel tank differential pressure sensor output
voltage is 1 to 4 volts.

｠

Vehicle speed is greater than 20 km/h (12.4 mph).

Conditions C: For Test to Stop

｠

Intake air temperature is greater than -10°C (14°F).

｠

When the evaporative emission purge solenoid and
evaporative emission ventilation solenoid are
closed, the pressure in the fuel tank is less than 451
Pa (0.065 psi).

｠

The pressure fluctuation is less than 647 Pa (0.094
psi).

｠

10 seconds have elapsed since the start of the
previous monitoring.

｠

Monitoring time: 75 - 125 seconds.

Judgement Criteria

｠

Internal pressure of the fuel tank has changed more
than 977 Pa (0.142 psi) in 20 seconds after the tank
and vapor line were closed.

NOTE:

The monitoring time (75 - 125 seconds)

depends on the fuel level and the temperature in
the fuel tank.The next monitoring occurs at
least 10 seconds later.

Check Conditions
Remaining fuel amount is 40 - 85 percent of capacity
(fuel level sensor output voltage is 2.4 - 3.7 volts).

Conditions A: At Start up

｠

Intake air temperature is less than 36°C (97°F)
when the engine is started.

｠

The engine coolant temperature is less than 36°C
(97°F) when the engine is started.

Conditions B: For Test to Run

｠

The fuel temperature is less than 36°C (97°F).

｠

Barometric pressure is greater than 76 kPa (11 psi).

｠

Fuel tank differential pressure sensor output
voltage is 1 to 4 volts.

Conditions C: For Test to Stop

｠

Intake air temperature is greater than -10°C (14°F).

｠

Engine coolant temperature is greater than 20°C
(68°F).

｠

When the evaporative emission purge solenoid and
evaporative emission ventilation solenoid are
closed, the pressure in the fuel tank is less than 324
Pa (0.047 psi).

｠

10 seconds have elapsed since the start of the
previous monitoring.

｠

Monitoring time: 10 - 14 minutes.

Judgement Criteria

｠

Internal pressure of the fuel tank has changed more
than 2 kPa (0.29 psi) in 128 seconds after the tank
and vapor line were closed.

NOTE:

The monitoring time (10 - 14 minutes)

depends on the fuel level and the temperature in
the fuel tank.The next monitoring occurs at
least 10 seconds later.

OBD-ll DRIVE CYCLE PATTERN
Refer to Diagnostic Function - OBD-ll Drive Cycle -
Pattern 5 P.13Ab-8.

TROUBLESHOOTING HINTS (THE MOST LIKELY
CAUSES FOR THIS CODE TO BE SET ARE:)

｠

Loose fuel cap.

｠

Fuel cap relief pressure is incorrect.

｠

Evaporative emission canister seal is leaking.

｠

Fuel tank, purge line or vapor line seal is leaking.

｠

Evaporative emission ventilation solenoid does not
seal.

13Ab-464

MULTIPORT INJECTION SYSTEM (MFI) <DIAGNOSIS>

DIAGNOSTIC TROUBLE CODE PROCEDURES

DIAGNOSIS

Required Special Tools:

｠

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

｠

MB991824: V.C.I.

｠

MB991827: M.U.T.-III USB Cable

｠

MB991910: M.U.T.-III Main Harness A

STEP 1. Using scan tool MB991958, check the evaporative
emission system monitor test.

ZC501967

AC404789

ZC501968

MB991824

MB991827

MB991910

Data link

connector

AA00

｠

To prevent damage to scan tool MB991958, always turn
the ignition switch to the "LOCK" (OFF) position before
connecting or disconnecting scan tool MB991958.

｠

During this test, the ECM will automatically increase the
engine speed to 1,600 r/min or greater. Check that the
transaxle is set to "P" position.

(1)

Connect scan tool MB991958 to the data link connector.

(2)

Turn the ignition switch to the "ON" position.

(3)

Erase the DTCs using scan tool MB991958.

(4)

Check that the fuel cap is securely closed (Tighten until three
clicks are heard).

(5)

Start the engine.

(6)

Select "System Test."

(7)

Select "Evap Leak Mon."

(8)

During this test, keep the accelerator pedal at the idle
position.

(9)

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".

(10)

Turn the ignition switch to the "LOCK" (OFF) position, and
disconnect scan tool MB991958.

Q:Is "Evap Leak Mon. Completed. Test Failed and DTCs

Set" displayed on scan tool MB991958?

YES:

A malfunction has been detected during the monitor

test. Refer to the Diagnostic Trouble Code Chart and
diagnose any other DTCs that are set P.13Ab-44. If no
other DTC's have been set, go to Step 2.

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

The evaporative

emission system is working properly at this time. Explain
to the customer that an improperly tightened fuel cap can
cause the MIL to illuminate. Return the vehicle to the
customer.

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 1.

MULTIPORT INJECTION SYSTEM (MFI) <DIAGNOSIS>

13Ab-465

DIAGNOSTIC TROUBLE CODE PROCEDURES

STEP 2. Check for leaks in evaporative emission hose A.

ZK603398AA00

Hose A

Use a hand vacuum pump to check the hose A.

Q:Do the hose hold vacuum?

YES:

Go to Step 3.

NO:

Replace the hose. Then go to Step 14.

STEP 3. Check the evaporative emission purge solenoid for
leaks.

(1)

Disconnect the hose A from the evaporative emission purge
solenoid.

ZK603399AA00

(2)

Connect the hose of the hand vacuum pump to the intake
manifold side nipple of the evaporative emission purge
solenoid.

(3)

Use the hand vacuum pump to confirm that the evaporative
emission purge solenoid holds vacuum.

(4)

Connect the hose A to the evaporative emission purge
solenoid.

Q:Does the evaporative emission purge solenoid hold

vacuum?

YES:

Go to Step 4.

NO:

Replace the evaporative emission purge solenoid.

Then go to Step 14.

STEP 4. Check for leaks in evaporative emission B.

ZK603400AA000

Hose B

Use a hand vacuum pump to check the hose B.

Q:Do the hose hold vacuum?

YES:

Go to Step 5.

NO:

Replace any damaged hose. Then go to Step 14.

STEP 5. Using scan tool MB991958, check actuator test item
15: Evaporative emission ventilation solenoid.

(1)

Remove the canister cover.

(2)

Remove the evaporative emission ventilation solenoid. Do
not disconnect the connector.

13Ab-466

MULTIPORT INJECTION SYSTEM (MFI) <DIAGNOSIS>

DIAGNOSTIC TROUBLE CODE PROCEDURES