Mitsubishi Outlander GS45X. Manual - part 495

ON-VEHICLE SERVICE

TSB Revision

ENGINE MECHANICAL <3.0L ENGINE>

11C-17

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.
2. Connect scan tool MB991958 to the data link connector.

3. Set the timing light to the power supply line (terminal No. 1) 

of the ignition coil No. 2.
NOTE: The power supply line is looped and also longer than 
the other ones.

4. Start the engine and run it at idle.
5. Check that the actual ignition timing is at the standard value.

Standard value: Approximately 10

° BTDC

NOTE: The ignition timing fluctuates about 

±

 7

°

, even under 

normal operating condition.
NOTE: It is automatically further advanced by about 5

°

 from 

10

°

 Before Top Dead Center at higher altitudes.

NOTE: Wait till approximately 1 minute passes after the engine 
started, and check the ignition timing when the engine stabi-
lized.
6. Increase the engine speed to 2,000 

− 3,000 r/min for 2 

minutes.

7. Set the CO, HC tester.
8. Check the CO contents and the HC contents at idle.

Standard value:

CO contents: 0.5% or less
HC contents: 100 ppm or less

9. If the CO and HC contents do not remain inside the standard 

value, refer to GROUP 13B, Multiport Fuel Injection (MFI) 
<3.0L Engine> 

− Multiport Fuel Injection (MFI) Diagnosis − 

Symptom Chart 

P.13B-55

.

10.Remove the CO, HC tester and timing light.

AK800400

Data link
connector

MB991827

MB991824 

MB991910

AC

AK700018

Ignition timing pickup loop

No .2 ignition coil 

AB

ON-VEHICLE SERVICE

TSB Revision

ENGINE MECHANICAL <3.0L ENGINE>

11C-18

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.
11.Disconnect scan tool MB991958 from the data link 

connector.

COMPRESSION PRESSURE CHECK

M1111002603301

Required Special Tool:
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

1. Before inspection, check that the engine oil, starter and 

battery are normal. Also, set the vehicle in the following 
condition:

• Engine coolant temperature: 80 − 95°C (176 − 203°F)

• Lights and all accessories: OFF

• Transaxle: P range

NOTE: On vehicles for Canada, the headlight, taillight, etc. 
remain lit even when the lighting switch is in "OFF" position 
but this is no problem for checks.

2. Remove all of the ignition coils and spark plugs.
3. Disconnect the injector connector.

WARNING

Keep your distance from the spark plug hole when 
cranking. Oil, fuel, etc., may spray out from the spark 
plug hole and may cause serious injury.

4. Cover the spark plug hole with a shop towel etc., during 

cranking. After the engine has been cranked, check for 
foreign material adhering to the shop towel.

5. Set compression gauge to one of the spark plug holes.
6. Crank the engine and measure the compression pressure.

Standard value (at engine speed of 200 r/min): 1,650 
kPa (239 psi)
Minimum limit (at engine speed of 200 r/min): 1,150 
kPa (167 psi)

7. Measure the compression pressure for all the cylinders, and 

check that the pressure differences of the cylinders are 
below the limit.

Limit: 98 kPa (14 psi)

AK703815

Injector connector

AD

Injector connector

AK700020

Compression
gauge

AB

ON-VEHICLE SERVICE

TSB Revision

ENGINE MECHANICAL <3.0L ENGINE>

11C-19

8. If there is a cylinder with compression or a compression 

difference that is outside the limit, pour a small amount of 
engine oil through the spark plug hole, and repeat the 
operations in steps 5 to 7.

(1) If the compression increases after oil is added, the cause 

of the malfunction is a worn or damaged piston ring 
and/or cylinder inner surface.

(2) If the compression does not rise after oil is added, the 

cause is a burnt or defective valve seat, or pressure is 
leaking from the gasket.

9. Connect the injector connector.
10.Install the spark plugs and ignition coils.
11.Use the scan tool MB991958 to erase the diagnostic trouble 

codes.
NOTE: This will erase the diagnostic trouble code resulting 
from the injector connector being disconnected.

12.Select "Mode $0A" from "Special Function" of Scan tool 

MB991958. Check whether the permanent-DTC (PDTC) is 
stored or not. If stored, clear the PDTC. (Refer to GROUP 
13B 

− Multiport Fuel Injection (MFI) <3.0 L Engine> − 

Multiport Fuel Injection (MFI) Diagnosis 

− Diagnostic 

Function 

P.13B-11

)

MANIFOLD VACUUM CHECK

M1111002702026

Required Special Tool:
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

1. Before inspection, set the vehicle in the following condition:

• Engine coolant temperature: 80 − 95°C (176 − 203°F)

• Lights and all accessories: OFF

• Transaxle: P range

NOTE: On vehicles for Canada, the headlight, taillight, etc. 
remain lit even when the lighting switch is in "OFF" position 
but this is no problem for checks.

AK800400

Data link
connector

MB991827

MB991824 

MB991910

AC

ON-VEHICLE SERVICE

TSB Revision

ENGINE MECHANICAL <3.0L ENGINE>

11C-20

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.
2. Connect scan tool MB991958 to the data link connector.

3. Disconnect the ventilation hose from the positive crankcase 

ventilation (PCV) valve, and then connect a vacuum gauge 
to the ventilation hose. Plug the PCV valve.

4. Start the engine and check that idle speed is approximately 

600 r/min.

5. Check the intake manifold vacuum.

Limit: Minimum 60 kPa (18 in Hg)

6. Turn off the ignition switch.
7. Remove the vacuum gauge and then connect the ventilation 

hose to the PCV valve.

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.
8. Disconnect scan tool MB991958 from the data link 

connector.

LASH ADJUSTER CHECK

M1111002901061

If an abnormal noise (chattering noise) suspected to be caused 
by malfunction of the lash adjuster is produced immediately 
after starting the engine and does not disappear, perform the 
following check.
NOTE: The lash adjuster is installed in exhaust side only.
NOTE: Parking the vehicle on a grade for a long time may 
decrease oil in the lash adjuster, causing air to enter the high 
pressure chamber when starting the engine.

AK800400

Data link
connector

MB991827

MB991824 

MB991910

AC

AK700021

Ventilation hose

Plug 

AB

Vacuum gauge

Positive crankcase
ventilation valve