Mitsubishi Outlander XL. Manual - part 331

ZK603430 AA00

Evaporative emission canister

ZK603612 AA00

Evaporative emission
ventilation solenoid

Spare tire

B-116 (GR)

Connector: B-116

 

ZK603611

Evaporative emission
purge solenoid

AA00

B-07 (B)

Connector: B-07

 

TECHNICAL DESCRIPTION

｠

The  fuel  tank  may  be  under  a  slight  pressure  or
vacuum depending on the state of the Evaporative
Emission (EVAP) System. The ECM monitors and
responds to these pressure/vacuum changes. If the
pressure/vacuum varies from the specified range,
the ECM will set DTC P0455.

｠

The  ECM  energizes  the  evaporative  emission
ventilation  solenoid  to  shut  off  the  evaporative
emission canister outlet port.

｠

The  evaporative  emission  purge  solenoid  is
activated to apply engine manifold vacuum to the
EVAP system.

｠

When the fuel system develops a vacuum of 2 kPa
(0.29 psi), the evaporative emission purge solenoid
is  turned  "off"  and  the  fuel  system  vacuum  is
maintained at 2 kPa (0.29 psi).

｠

The ECM determines whether there is a leak or clog
in  the  fuel  system  by  measuring  the  change  in
vacuum inside the fuel tank.

｠

The  test  is  stopped  when  fuel  vapor  pressure  is
determined to be too high.

DESCRIPTIONS OF MONITOR METHODS

｠

Depressurizing  EVAP  system  by  intake  manifold
negative  pressure  is  impossible  within  specified
period.

MONITOR EXECUTION

｠

Once per driving cycle.

MONITOR EXECUTION CONDITIONS (OTHER
MONITOR AND SENSOR)

Other Monitor (There is no temporary DTC stored in
memory for the item monitored below)

｠

Evaporative emission purge solenoid monitor

｠

Evaporative emission purge system monitor

｠

Fuel tank differential pressure sensor monitor

｠

Evaporative emission ventilation solenoid monitor

｠

Fuel level sensor monitor

｠

Fuel temperature sensor monitor

Sensor (The sensors below are determined to be
normal)

｠

Mass airflow sensor

｠

Barometric pressure sensor

｠

Intake air temperature sensor

｠

Engine coolant temperature sensor

MULTIPORT INJECTION SYSTEM (MFI) <DIAGNOSIS>

13Ab-519

DIAGNOSTIC TROUBLE CODE PROCEDURES

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

13Ab-520

MULTIPORT INJECTION SYSTEM (MFI) <DIAGNOSIS>

DIAGNOSTIC TROUBLE CODE PROCEDURES

Logic Flow Chart <0.02 in leak monitor>

ZK603437

Pt :  Threshold value

Open cani ster vent solenoi d

Open purge solenoi d

N = N + 1

N = 0

M = 1

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)

Monitoring condi tions

20 s ecs have pass ed?

50 s ecs have pass ed?

128 s ecs have pass ed?

  PFT = PF2 

－

 PF1

> 33 mmAq

PFT > -200mmAq

Start

A

A

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

600 s ecs have

Pass ed?

Open cani ster

Vent solenoi d

End

Malfunction
(0.020 leak)

N = 3

N = 2

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

End

PF3 = PFT

M = M + 1

PF4 = PFT

  PFT2 = PF4 

－

 PF3

Close cani ster vent solenoid  & purge solenoid

MULTIPORT INJECTION SYSTEM (MFI) <DIAGNOSIS>

13Ab-521

DIAGNOSTIC TROUBLE CODE PROCEDURES

DTC SET CONDITIONS

Check Conditions A: At Start up

｠

Intake air temperature is 36°C (97°F) or less upon
engine start up.

｠

The engine coolant temperature is 36°C (97°F) or
less upon engine start up.

Check Conditions B: For Test to Run

｠

The engine coolant temperature is 60°C (140°F) or
greater and the fuel tank is 15 - 40 percent full.

｠

The engine coolant temperature is 20°C (68°F) or
greater and the fuel tank is 40 - 85 percent full.

｠

The engine speed is greater than 1,600 r/min.

｠

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

｠

Volumetric efficiency is between 20 and 70 percent.

｠

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

｠

The  fuel  tank  differential  pressure  sensor  output
voltage is 1 - 4 volts.

Check Conditions C: For Test to Stop

｠

The intake air temperature is greater than 5°C (41°
F).

｠

When the evaporative emission purge solenoid and
evaporative  emission  ventilation  solenoid  are
closed, the pressure in the fuel tank rises to 451 Pa
(0.065 psi) or less and the amount of remaining fuel
is 15 - 40 percent of capacity upon engine start-up.

｠

When the evaporative emission purge solenoid and
evaporative  emission  ventilation  solenoid  are
closed, the pressure in the fuel tank rises to 324 Pa

(0.047 psi) or less and the amount of remaining fuel
is 40 - 85 percent of capacity upon engine start-up.

｠

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

｠

Monitoring time: 150 seconds.

Judgement Criteria

｠

The fuel tank internal pressure is 2 kPa (0.29 psi)
or  more  after  the  evaporative  emission  purge
solenoid valve has been driven when the fuel tank
and vapor line were closed.

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.

｠

Fuel overflow limiter valve failed.

｠

Purge line or vapor line is clogged.

｠

Fuel tank, purge line or vapor line seal failed.

｠

Evaporative emission purge solenoid valve failed.

｠

Evaporative  emission  ventilation  solenoid  valve
failed.

｠

Fuel tank differential pressure sensor failed.

｠

Evaporative emission canister seal is faulty.

｠

Evaporative emission canister is clogged.

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

13Ab-522

MULTIPORT INJECTION SYSTEM (MFI) <DIAGNOSIS>

DIAGNOSTIC TROUBLE CODE PROCEDURES