Mitsubishi Outlander XL. Manual - part 333

STEP 8. Test check valve.

ZK603407

Check valve

AA00

(1)

Check valve is a one-way check valve.

ZK603408AA00

Check valve

(2)

Check valve should allow air to flow in only one direction.

Q:Does check valve allow air to pass in one direction only?

YES:

 Go to Step 9.

NO:

 Replace check valve, and reinstall the fuel tank

filler tube protector (Refer to GROUP 13B, Fuel Tank
<FWD> P.13B-13or Fuel Tank <AWD> P.13B-18). Then go
to Step 14.

STEP 9. Check for leaks in evaporative emission hoses G
and H.

ZK603409

Hose G

Hose H

AA00

　

Use a hand vacuum pump to test each hose G and H.

Q:Do the hoses hold vacuum?

YES:

 Go to Step 10.

NO:

 Replace any damaged hose. Then go to Step 14.

STEP 10. Check for leaks in evaporative emission hose I.

(1)

Remove the fuel tank assembly (Refer to GROUP 13B, Fuel
Tank  <FWD>  P.13B-13or  Fuel  Tank  <AWD>  P.
13B-18).

ZK603410

Hose I

AA00

(2)

Use the hand vacuum pump to check the hose I.

Q:Do the hose hold vacuum?

YES:

 Go to Step 11.

NO:

 Replace the hose and reinstall the fuel tank assembly

(Refer to GROUP 13B, Fuel Tank <FWD> P.13B-13or Fuel
Tank <AWD> P.13B-18). Then go to Step 14.

MULTIPORT INJECTION SYSTEM (MFI) <DIAGNOSIS>

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DIAGNOSTIC TROUBLE CODE PROCEDURES

STEP 11. Check for leaks in the fuel tank.

ZK603411AA00

(1)

Visually check for cracks or other leaks in the fuel tank.

NOTE: 

Carefully check the fuel pump module and the fuel

tank differential pressure sensor installation in the
fuel tank.

ZK603412AA00

(2)

Connect  the  evaporative  emission  system  pressure  pump
(Miller number 6872A) to the fuel filler hose.

ZK603413AA00

(3)

Plug the hose and the nipple shown in the illustration.

NOTE: 

If these items are not securely plugged now, the

fuel could leak in the next step.

(4)

Pressurize  the  fuel  tank  with  the  evaporative  emission
system pressure pump.

(5)

In the pressurized state, check for leaks by applying a soapy
water solution to each section and look for bubbles.

Q:Are any leaks found?

YES <When there is a leak from the attachment points of
the fuel pump module, fuel tank differential pressure
sensor, fuel level sensor (sub) or leveling valve.>:

Reassemble the leaked parts and check again that there are
no leaks. Then reinstall the fuel tank (Refer to GROUP
13B, Fuel Tank <FWD> P.13B-13or Fuel Tank <AWD> P.
13B-18). Then go to Step 14.

YES <When there is a leak from the fuel tank.>:

 Replace

the fuel tank (Refer to GROUP 13B, Fuel Tank <FWD> P.
13B-13or Fuel Tank <AWD> P.13B-18). Go to Step 14

NO:

 When there is no leak, reinstall the fuel tank (Refer

to GROUP 13B, Fuel Tank <FWD> P.13B-13or Fuel Tank
<AWD> P.13B-18). Then go to Step 13.

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MULTIPORT INJECTION SYSTEM (MFI) <DIAGNOSIS>

DIAGNOSTIC TROUBLE CODE PROCEDURES

STEP 12. Check the evaporative emission canister for
vacuum leaks.

ZK603414

Plugs

AA00

(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 13.

NO:

 Replace the evaporative emission canister (Refer to

GROUP 17, Evaporative Emission Canister and Fuel Tank
Pressure Relief Valve P.17c-18). Then go to Step 14.

STEP 13. Using scan tool MB991958, check the evaporative
emission system monitor test.

｠

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, ID Code Registration
Judgment Table <Vehicles with KOS> P.42B-12or GROUP
42C, ID Code Registration Judgment Table <Vehicles with
WCM> P.42C-8. Then go to Step 14.

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 14.

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 14.

MULTIPORT INJECTION SYSTEM (MFI) <DIAGNOSIS>

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DIAGNOSTIC TROUBLE CODE PROCEDURES

STEP 14. 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
5 P.13Ab-8).

(2)

Read the DTC.

Q:Is DTC P0455 set?

YES:

 Repeat the troubleshooting.

NO:

 The procedure is complete.

DTC P0456: Evaporative Emission Control System Leak Detected (Very Small Leak)

M11310100410USA0000010000

ZK603429

K

A

B

C

D

E

F

G

H

I

J

AA00

Intake manifold

Fuel tank

Evaporative emission
ventilation solenoid

Check valve

Evaporative emission
purge solenoid

Evaporative  
emission canister

System diagram

Air filter

Vent pipe

 

ZK603430 AA00

Evaporative emission canister

ZK603611

Evaporative emission
purge solenoid

AA00

B-07 (B)

Connector: B-07

13Ab-530

MULTIPORT INJECTION SYSTEM (MFI) <DIAGNOSIS>

DIAGNOSTIC TROUBLE CODE PROCEDURES