
GENERAL -How to Use Troubleshooting/Inspection Service Points00-13
INSPECTION SERVICE POINTS FOR A BLOWN
FUSE
Remove the blown fuse and measure the resistance between
the load side of the blown fuse and the earth. Set the switches
of all circuits which are connected to this fuse to a condition
of continuity. If the resistance is almost 0Ωat this time,
there is a short somewhere between these switches and the
load. If the resistance is not 0Ω, there is no short at the
present time, but a momentary short has probably caused
the fuse to blow.
The main causes of a short circuit are the following.
DHarness being clamped by the vehicle body
DDamage to the outer casing of the harness due to wear
or heat
DWater getting into the connector or circuitry
DHuman error (mistakenly shorting a circuit, etc.)
POINTS TO NOTE FOR INTERMITTENT
MALFUNCTIONS
Intermittent malfunctions often occur under certain conditions,
and if these conditions can be ascertained, determining the
cause becomes simple. In order to ascertain the conditions
under which an intermittent malfunction occurs, first ask the
customer for details about the driving conditions, weather
conditions, frequency of occurrence and trouble symptoms,
and then try to recreate the trouble symptoms. Next, ascertain
whether the reason why the trouble symptom occurred under
these conditions is due to vibration, temperature or some
other factor. If vibration is thought to be the cause, carry
out the following checks with the connectors and components
to confirm whether the trouble symptom occurs.
The objects to be checked are connectors and components
which are indicated by inspection procedures or given as
probable causes (which generates diagnosis codes or trouble
symptoms.)
DGently shake the connector up, down and to the left and
right.
DGently shake the wiring harness up, down and to the
left and right. Check the branch point of wiring harness
connector closely.
DGently rock each sensor and relay, etc. by hand.
DGently shake the wiring harness at suspensions and other
moving parts.
NOTE
If determining the cause is difficult, the flight recorder function
of the MUT-IIcan also be used.
Fuse
Battery
Load
switch
Load
Short circuit
occurrence
section

GENERAL -Precautions Before ServiceGENERAL -Precautions Before Service00-19
SERVICING THE ELECTRICAL SYSTEM
Before replacing a component related to the electrical system
and before undertaking any repair procedures involving the
electrical system, be sure to first disconnect the negative
( - ) cable from the battery in order to avoid damage caused
by short-circuiting.
Caution
Before connecting or disconnecting the negative ( - ) cable,
be sure to turn off the ignition switch and the lighting
switch.
(If this is not done, there is the possibility of
semiconductor parts being damaged.)
APPLICATION OF ANTI-CORROSION AGENTS
AND UNDERCOATS
If oil or grease gets onto the oxygen sensor, it will cause
a drop in the performance of the sensor.
Cover the oxygen sensor with a protective cover when applying
anti-corrosion agents and undercoats.
PRE-INSPECTION CONDITION
“Pre-inspection condition” refers to the condition that the
vehicle must be in before proper engine inspection can be
carried out. If you see the words “Set the vehicle to the
pre-inspection condition”. in this manual, it means to set the
vehicle to the following condition.
DEngine coolant temperature: 80 to 90_C
DLamps, electric cooling fan and all accessories: OFF
DM/T: Neutral
DA/T: P range
VEHICLE WASHING
If high-pressure car-washing equipment or steam car-washing
equipment is used to wash the vehicle, be sure to note the
following information in order to avoid damage to plastic
components, etc.
DSpray nozzle distance: Approx. 40 cm or more
DSpray pressure: 3,900 kPa or less
DSpray temperature: 82_C or less
DTime of concentrated spray to one point: within 30 sec.
Approx.
40 cm

GENERAL -Support Locations for Lifting and Jacking00-26
PLATE TYPE LIFT
To avoid damaging the side sill garnish, put a wooden block between the side sill and a lift.
NOTE
The wooden block should be 100 mm wide and 50 mm high.
SUPPORT POSITIONS AND SUPPORT METHOD
FOR AN H-BAR LIFT
Caution
When service procedures require removing the rear
suspension, fuel tank, spare tyre and rear bumper, place
additional weight on rear end of vehicle or anchor vehicle
to hoist to prevent tipping of centre of gravity changes.
When H-bar lift is used to lift up vehicles, use of metallic
attachment attached to the H-bar lift may cause damage
to the suspension arm etc. Therefore, lift up the vehicle by
the following procedure.
1. Place the vehicle on the H-bar lift (same direction).
2. Place attachments on the H-bar lift at the designated
chassis-support positions. When making the attachments,
refer to the section concerning making them.
Caution
If support is at any location other than the designated
positions, the body or suspension might be deformed
or otherwise damaged, so care should be taken to
support only at the correct (designated) positions.
3. Raise the H-bar lift to the height at which the vehicle
is slightly raised and check to be sure that the vehicle
is correctly and sufficiently secured; then raise the vehicle.
H-bar lift
H-bar lift
A
Chassis-sup-
port position
(side sill)
Attachment
H-bar liftSection A - A
Side sill
AttachmentH-bar lift
A

ENGINE -On-vehicle ServiceENGINE -On-vehicle Service11A-9
IGNITION TIMING CHECK
1. Before inspection, set the vehicle to the pre-inspection
condition.
2. Turn the ignition switch to “LOCK” (OFF) position and
then connect the MUT-IIto the diagnosis connector.
3. Set up a timing light.
4. Start the engine and run at idle.
5. Check that engine idle speed is within the standard value.
Standard value: 850±100 r/min
6. Select No.17 of the MUT-IIActuator test.
7. Check that basic ignition timing is within the standard
value.
Standard value: 5_BTDC±3_
8. If the basic ignition timing is outside the standard value,
inspect the MPI system while referring to GROUP 13A
- Troubleshooting.
9. Press the MUT-IIclear key (Select a forced driving cancel
mode) to release the Actuator test.
Caution
If the test is not cancelled, a forced driving will
continue for 27 minutes. Driving under this condition
may damage the engine.
10. Check that ignition timing is at the standard value.
Standard value: approximately 5_BTDC
NOTE
(1) Ignition timing is variable within about±7, even under
normal operating.
(2) And it is automatically further advanced by
approximately 5_from standard value at higher
altitudes.
11. Remove the timing light.
12. Turn the ignition switch to “LOCK” (OFF) position and
then remove the MUT-II.
IDLE SPEED CHECK
1. Before inspection, set the vehicle to the pre-inspection
condition.
2. Turn the ignition switch to “LOCK” (OFF) position, and
then connect the MUT-IIto the diagnosis connector.
3. Set the timing light.
4. Check that the basic ignition timing is within the standard
value.
MUT-II
MUT-II

ENGINE -On-vehicle ServiceENGINE -On-vehicle Service11A-10
Standard value: 5_BTDC±3_
5. Run the engine at idle for 2 minutes.
6. Check the idle speed. Select item No. 22 and take a
reading of the idle speed.
Curb idle speed: 850±100 r/min
NOTE
The idle speed is controlled automatically by the idle speed
control (ISC) system.
7. If the idle speed is outside the standard value, check
the MPI components by referring to GROUP 13A -
Troubleshooting.
8. Remove the timing light.
9. Turn the ignition switch to the “LOCK” (OFF) position
and then remove the MUT-II.
IDLE MIXTURE CHECK
1. Before inspection, set the vehicle to the pre-inspection
condition.
2. Turn the ignition switch to the “LOCK” (OFF) position,
and then connect the MUT-IIto the diagnosis connector.
3. Set the timing light.
4. Check that the basic ignition timing is within the standard
value.
Standard value: 5_BTDC±3_
5. Run the engine at 2,500 r/min for 2 minutes.
6. Set the CO, HC tester.
7. Check the CO contents and the HC contents at idle.
Standard value
CO contents: 0.1% or less
HC contents: 100 ppm or less
8. If there is a deviation from the standard value, check the
following items:
DDiagnosis output
DClosed-loop control (When the closed-loop control
is normal, the output signal of the oxygen sensor
changes between 0 - 400 mV and 600 - 1,000 mV
at idle.)
DFuel pressure
DInjector
DIgnition coil, spark plug cable, spark plug
DEvaporative emission control system
DCompression pressure
NOTE
Replace the three way catalyst when the CO and HC
contents are not within the standard value, even though
the result of the inspection is normal on all items.
9. Remove the timing light.
MUT-II

ENGINE -Engine Assembly11A-43
ENGINE ASSEMBLY
REMOVAL AND INSTALLATION
Caution
1. If the vehicle is equipped with the Brembo disc brake, during maintenance, take care not to
contact the parts or tools to the caliper because the paint of caliper will be scratched.
2. Tightening sections indicated in the mark (*) should be finally tightened with engine weight
applied on the body after lightly tightening.
Pre-removal and Post-installation Operation
DFuel Outflow Preventive Operation (Refer to GROUP 13A - On-vehicle Service.)
DFuel Leak Check
DRemoval and Installation of Hood (Refer to GROUP 42.)
DRemoval and Installation of Strut Tower Bar (Refer to GROUP 42.)
DRemoval and Installation of Under Cover (Refer to GROUP 51 - Front Bumper.)
DRemoval and Installation of Side Cover.
DDrive Belt Tension Check (Refer to P.11A - 7.)
DAccelerator Cable Adjustment (Refer to GROUP 17 - On-vehicle Service.)
DDrainage and Refilling Engine Oil(Refer to GROUP 12 - On-vehicle Service.)
DDrainage and Refilling of Engine Coolant (Refer to GROUP 14 - On-vehicle Service.)
DAir Cleaner Removal and Installation (Refer to GROUP 15)
DRemoval and Installation of Air Pipe C, Air Pipe B and Air Hose A (Refer to GROUP 15 - Intercooler.)
DBattery and Battery Tray Removal and Installation
DRemoval and Installation of Center Cover (Refer to P.11A - 17.)
DRemoval and Installation of Accelerator Cable (Refer to GROUP 17.)
DRemoval and Installation of Radiator (Refer to GROUP 14.)
DRemoval and Installation of Crossmember Bar (Refer to GROUP 32 - Engine Roll Stopper, Centermember.)
DRemoval and Installation of Front Exhaust Pipe (Refer to GROUP 15.)
DRemoval and Installation of Air Outlet Fitting (Refer to GROUP 15 - Exhaust manifold.)

ENGINE OVERHAUL -Specifications11B-8
SEALANTS
ItemSpecified sealantQuantity
Engine support bracket bolt3MTMAAD Part No. 8672 or equivalentAs required
Semi-circular packing3MTMAAD Part No. 8672 or equivalentAs required
Rocker cover3MTMAAD Part No. 8672 or equivalentAs required
Water outlet fittingMitsubishi Genuine Part No. MD970389 or
equivalentAs required
Engine coolant temperature gauge unit3MTMAAD Part No. 8672 or equivalentAs required
Engine coolant temperature sensor3MTMAAD Part No. 8672 or equivalentAs required
Cylinder head (camshaft bearing cap mounting
section)3MTMAAD Part No. 8672 or equivalentAs required
Cam position sensor supportMitsubishi Genuine Part No. MD970389 or
equivalentAs required
Oil pressure switch3MTMAAD Part No. 8672 or equivalentAs required
Oil panMitsubishi Genuine Part No. MD970389 or
equivalentAs required
Oil seal caseMitsubishi Genuine Part No. MD970389 or
equivalentAs required
FORM-IN-PLACE-GASKET
FIPG is used for several members of this engine. With this gasket, caution is required to the application
amount, application procedure and state of the application surface so that the performance is sufficiently
attained.
If sufficient gasket is not applied, leaks could occur, and if too much is applied, the gasket could protrude
and plug or restrict the oil and water flow passage. Thus, to prevent leaks from the joined sections,
it is absolutely necessary to evenly apply the correct amount.
The FIPG used for the engine parts reacts with moisture in the air and hardens so use it for the normal
metal flange parts.
DISASSEMBLY
The parts assembled with FIPG can be easily disassembled without special means. However, in some
cases, the sealant on the seams must be broken by lightly tapping with a wood hammer or similar tool.
A smooth and thin gasket scraper can be lightly tapped into the seams but in this case, take care not
to damage the seams.
The special tool oil pan remover (MD998727) is set for this purpose.
WASHING THE GASKET SURFACE
Completely remove all matters adhered on the gasket surfaces with a gasket scraper or wire brush.
Confirm that the FIPG application surface is smooth. There must be no grease or foreign matter on
the gasket surface.
Always remove the old FIPG that has entered the mounting holes and screw holes.
APPLICATION PROCEDURES
Apply an even coat of FIPG within the predetermined radius. Completely cover the areas around the
mounting holes. The FIPG can be wiped off if it has not hardened. Install at the set position while the
FIPG is still wet (within 15 minutes). When installing, maker sure that the FIPG does not get on areas
other than the required areas. After installing, do not subject the application areas to oil or water or
start the engine until the FIPG has sufficiently hardened (approx. one hour). The FIPG application procedures
differ according to the member, so follow the procedures given in this manual and apply the FIPG.

ENGINE OVERHAUL -Timing Belt11B-17
3. Apply form-in-place gasket on the rocker cover at the
position shown in the illustration.
Sealant
Specified sealant:
3M
TMAAD Part No. 8672 or equivalent
4. Install the rocker cover onto the cylinder head before
the form-in-place gasket hardens.
"EACRANKSHAFT SPROCKET B INSTALLATION
Clean the crankshaft sprocket B installation surface before
degreasing the crankshaft sprocket B.
NOTE
Always degrease the surface to prevent a drop in the frictional
coefficient at the pressing section caused by the adherence
of oil.
"FASPACER INSTALLATION
1. Apply a slight amount of oil on the outer periphery of
the spacer (oil seal contact section).
2. Insert the spacer from the chamfered side as shown in
the illustration.
Caution
Reversed insertion of the spacer can cause damage
to the oil seal lip.
"GACOUNTER BALANCE SHAFT SPROCKET
INSTALLATION
1. Fix the counter balance shaft sprocket with the special
tool.
2. Tighten the counter balance shaft sprocket installation
bolt at the specified torque 46±3N•m.
"HATIMING BELT B INSTALLATION
1. Align the crankshaft sprocket B and counter balance shaft
sprocket timing marks with the timing mark on the oil
pump case.
2. Attach the timing belt B to the crankshaft sprocket B
and counter balance shaft sprocket.
Do not loosen the belt tension too much at this time.
Timing belt side
Crankshaft sprocket B
Crankshaft
Degrease
Spacer
Oil seal
Chamfer
MD998785
Timing
marks
Timing
marks