Mitsubishi Outlander GS45X. Manual — part 737

MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS

TSB Revision

MULTIPORT FUEL INJECTION (MFI) <2.4L ENGINE>

13A-771

STEP 15. Check the following items.
(1) Check the following items.

a. Check the injectors for fuel leakage.
b. Check if the injectors are clogged.

Q: Are there any abnormalities?

YES : Replace it. Then confirm that the malfunction

symptom is eliminated.

Then confirm that the malfunction symptom is

eliminated.

NO : Replace the catalytic converter. Then confirm that the

malfunction symptom is eliminated.

Inspection procedure 19: Purge flow test of the evaporative emission canister failure

.

COMMENT

• The test fails when the purge line or purge port is

clogged or if the evaporative emission purge
solenoid fails.

.

TROUBLESHOOTING HINTS (The most
likely causes for this case:)

• Purge line or purge port is clogged.

• Malfunction of the evaporative emission purge

solenoid.

• Evaporative emission canister is clogged.

DIAGNOSIS

Required Special Tools:

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

• MB991824: V.C.I.

• MB991827: USB Cable

• MB991910: Main Harness A

MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS

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MULTIPORT FUEL INJECTION (MFI) <2.4L ENGINE>

13A-772

STEP 1. Using scan tool MB991958, read the 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 DTC.
(4) Turn the ignition switch to the "LOCK" (OFF) position.
Q: Is any DTC set?

YES : Refer to Diagnostic Trouble Code Chart

P.13A-49

.

NO : Refer to GROUP 17, Emission Control

− Evaporative

Emission Control System

−Purge Control System

Check (Purge Flow Check)

P.17-77

.

Inspection procedure 20: Pressure test of the evaporative system failure

.

COMMENT

• The test fails if there is a leak from the fuel tank or

vapor line.

.

TROUBLESHOOTING HINTS (The most
likely causes for this case:)

• Loose fuel tank filler tube cap.

• Broken seal in fuel tank, vapor line evaporative

emission canister.

DIAGNOSIS

STEP 1. Check the evaporative emission purge solenoid.
Refer to GROUP 17, Emission Control

− Evaporative Emission

Control System

− Evaporative Emission Purge Solenoid Check

P.17-78

.

Q: Is the evaporative emission purge solenoid normal?

YES : Go to Step 2.
NO : Repair or replace it. Then confirm that the malfunction

symptom is eliminated.

AK700568AB

MB991824

MB991827

MB991910

Data link
connector

MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS

TSB Revision

MULTIPORT FUEL INJECTION (MFI) <2.4L ENGINE>

13A-773

STEP 2. Check the evaporative emission ventilation
solenoid.
Refer to GROUP 17, Emission Control

− Evaporative Emission

Canister And Fuel Tank Pressure Relief Valve

− Inspection

P.17-88

.

Q: Is the evaporative emission ventilation solenoid

normal?
YES : Check the following items, and repair or replace the

defective items.

a. Check for leaks from the vapor line or

evaporative emission canister.

b. Check for leaks from the fuel tank.

Then confirm that the malfunction symptom is

eliminated.

NO : Repair or replace it. Then confirm that the malfunction

symptom is eliminated.

Inspection procedure 21: Generator output voltage is low (approximately 12.3 volts).

4

3

2

1

AK704301

1

2

3 4 5 6 7 8 9 10 11 12 13 14 15 16

17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32

33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48

49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64

YELLO

W

ENGINE CONTROL MODULE

GENERATOR

VOLTAGE
REGULATOR

B-118

(MU802066)

1

60

B-10

GENERATOR CIRCUIT

AB

MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS

TSB Revision

MULTIPORT FUEL INJECTION (MFI) <2.4L ENGINE>

13A-774

.

CIRCUIT OPERATION

• The ECM controls generator out put current by

duty-controlling continuity between the generator
G terminal (terminal No. 1) and ground.

.

TROUBLESHOOTING HINTS (The most
likely causes for this charging system:)

• Malfunction of the charging system.

• Short circuit in harness between generator G ter-

minal and ECM.

• Malfunction of the ECM.

DIAGNOSIS

Required Special Tool:

• MB991923: Power Train ECU Check Harness

AK704090AB

Connector: B-10

B-10 (GR)

AK704140

AB

Connector: B-118

B-118 (GR)