Mitsubishi Outlander GS45X. Manual - part 665

 

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Mitsubishi Outlander GS45X. Manual - part 665

 

 

MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS

TSB Revision

MULTIPORT FUEL INJECTION (MFI) <2.4L ENGINE>

13A-483

DTC SET CONDITIONS

Logic Flow Chart (Monitor Sequence)

.

Check Conditions

Conditions

• Engine coolant temperature is 36°C (97°F) or 

less when the engine is started.

• Intake air temperature is 36°C (97°F) or less 

when the engine is started.

• Engine coolant temperature is higher than 20°C 

(67

°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 (0.09 in.Hg).

• Amount of remaining fuel is 40 − 85 percent of 

capacity.

• Barometric pressure is higher than 76 kPa (22.4 

in.Hg).

• Intake air temperature is higher than −10°C 

(14

°F)

AK604523

Start

Yes

No

Monitoring 
conditions?

Depressurize fuel tank pressure

Yes

Yes

No

No

Gross leak 

monitoring conditions

Shut purge line

Specified times

have passed

Malfunction

(Gross leak)

Measure reverting
pressure:     PFT  

Yes

Yes

No

No

PFT > PT

Specified times

monitored

Malfunction

End

Good

AB

MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS

TSB Revision

MULTIPORT FUEL INJECTION (MFI) <2.4L ENGINE>

13A-484

• Fuel tank temperature is less than 33°C (91°F).

• Fuel tank differential pressure sensor output volt-

age is 1.0 

− 4.0 volts.

• At least 10 seconds have passed since the last 

monitor was complete.

Judgement Criterion

• Internal pressure of the fuel tank has changed 

more than 1,177 

− 1,497 Pa (0.177 − 0.217 psi) in 

88 seconds after the tank and vapor line were 
closed.

.

OBD-ll DRIVE CYCLE PATTERN

Refer to Diagnostic Function 

− OBD-II Drive Cycle − 

Pattern 6 

P.13A-11

.

.

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

• Loose fuel cap.

• Fuel cap relief pressure is incorrect.

• Malfunction of the evaporative emission canister 

seal.

• Malfunction of the fuel tank, purge line or vapor 

line seal.

• Malfunction of the evaporative emission ventila-

tion solenoid.

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

MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS

TSB Revision

MULTIPORT FUEL INJECTION (MFI) <2.4L ENGINE>

13A-485

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

CAUTION

• 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.13A-49

. 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 .

AK700568AB

MB991824

MB991827

MB991910

Data link
connector

MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS

TSB Revision

MULTIPORT FUEL INJECTION (MFI) <2.4L ENGINE>

13A-486

STEP 2. Check the evaporative emission purge solenoid 
for leaks.
(1) Disconnect hose A from the evaporative emission purge 

solenoid.

(2) Connect the hose of the hand pump (pressure-application 

type) to the chamber side nipple of the evaporative 
emission purge solenoid.

(3) Use the hand pump (pressure-application type) to confirm 

that the evaporative emission purge solenoid holds 
vacuum.

(4) Connect hose A to the evaporative emission purge 

solenoid.

Q: Does the evaporative emission purge solenoid hold 

pressure?
YES : Go to Step 3 .
NO :  Replace the evaporative emission purge solenoid. 

Then go to Step 13 .

STEP 3. Check for leaks in evaporative emission hose A, 
chamber and hose B.
(1) Use a hand vacuum pump to check hose A, chamber and 

hose B.

Q: Do the hoses and chamber hold vacuum?

YES : Go to Step 4 .
NO :  Replace any damaged hose or chamber. Then go to 

Step 13 .

STEP 4. Check for leaks in evaporative emission hose C.
(1) Use a hand vacuum pump to check hose C.
Q: Does hose C hold vacuum?

YES : Go to Step 5 .
NO :  Replace any damaged hose. Then go to Step 13 .

AK604272AB

Hose A

Evaporative
emission purge
solenoide

AK604273AB

Hose B

Chamber

Hose A

AK604274AB

Hose C

 

 

 

 

 

 

 

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