Mitsubishi Lancer (4A9 engine). Manual — part 19

PRECAUTIONS BEFORE SERVICE

GENERAL

00-73

LEARNED VALUE RESET

AK800862AB

MB991827

MB991824

MB991910

Diagnosis connector

<L.H. drive vehicles>

AK800863

AB

MB991827

MB991824

Diagnosis connector

<R.H. drive vehicles>

MB991910

1. After the ignition switch is in "LOCK" (OFF)

position, connect the M.U.T.-III to the diagnosis
connector.

2. Turn the ignition switch to the "ON" position.
3. Select "MPI/GDI/DIESEL" from System select

Screen of the M.U.T.-III.

4. Select "Special Function" from MPI/GDI/DIESEL

Screen.

5. Select "Timing chain maintenance" from Special

Function Screen.

6. Select "Learned value reset" from Timing chain

maintenance Screen.

7. Press "OK" to reset the initial learning value.

TEST/LIMIT VALUE READOUT

AK800862AB

MB991827

MB991824

MB991910

Diagnosis connector

<L.H. drive vehicles>

AK800863

AB

MB991827

MB991824

Diagnosis connector

<R.H. drive vehicles>

MB991910

1. After the ignition switch is in "LOCK" (OFF)

position, connect the M.U.T.-III to the diagnosis
connector.

2. Turn the ignition switch to the "ON" position.
3. Select "MPI/GDI/DIESEL" from System select

Screen of the M.U.T.-III.

PRECAUTIONS BEFORE SERVICE

GENERAL

00-74

4. Select "Special Function" from MPI/GDI/DIESEL

Screen.

5. Select "Timing chain maintenance" from Special

Function Screen.

6. Select "Test/Limit value readout" from Timing

chain maintenance Screen.

7. Read the value of percentage (%) shown on the

screen.

NOTE: The value of percentage (%) shown on the
screen is the amount of elongation of the timing
chain calculated by the engine-ECU based on the ini-
tial learning value, and thus is not the actual amount.
Use this for the reference only.

FORM

−IN−PLACE GASKET (FIPG)

M1001014200132

The engine has several parts to which the form-in-
place gasket (FIPG) is used. To sufficiently achieve
the aims of this gasket, it is necessary to pay atten-
tion to the application amount, procedure, and sur-
face status.
If the application amount is too small, a leakage will
occur. If the application amount is excessive, the
FIPG will overflow and cause a clogging or narrowing
of water and oil paths. Therefore, to eliminate the
leak from the joint, it is indispensable that the FIPG
be applied with a correct amount and without any
gap.
Because the FIPG used for the engine parts
becomes hardened by the reaction with the atmos-
pheric moisture, it is normally used for the metal
flange section.

CAUTION

Reapply the FIPG with care to the followings.

1. Completely remove the old FIPG including the

residue in gaps of parts.

2. Using Mitsubishi genuine parts cleaner

(MZ100387) or equivalent, degrease the FIPG
application surface carefully.

3. According to the FIPG application proce-

dures, apply it accurately.

DISASSEMBLY
The parts installed with the FIPG can be disassem-
bled easily without using any special method. How-
ever, in some cases, it is necessary to tear the
sealant in between the mating surfaces by tapping
the parts with a wooden hammer or similar tools. It is

acceptable to lightly hit in a smooth, thin gasket
scraper into the mating surface, but, in this case, a
sufficient caution is required not to damage the mat-
ing surface. The oil pan FIPG cutter (Special tool:
MD998727) is provided. Thus, use this special tool.

GASKET SURFACE CLEANING
Use a gasket scraper or wire brush to completely
remove all the foreign materials adhering to the gas-
ket surface. Check that the FIPG application surface
is smooth. There must be no grease or foreign mate-
rial adhesion to the gasket surface. Do not forget to
remove the old FIPG remaining in the mounting hole
and tapped hole.

APPLICATION PROCEDURE
Apply the FIPG with a specified diameter and without
any gap. Completely enclose around the mounting
hole. When the FIPG is not hardened, it can be
wiped off. Install the parts immediately after applying
the FIPG. At the time of installation, prevent the FIPG
from adhering to locations other than it is necessary.
After the installation, until a sufficient period of time
(one hour or more) elapses, do not contact the oil or
water to the application area. Also, do not start the
engine. Because the FIPG application procedure
may differ depending on the application area, apply
the FIPG according to the procedure described in the
text.

BOLTS AND NUTS WITH STABILIZER
FOR COEFFICIENT OF FRICTION

M1001014800123

The bolts and nuts with stabilizer for coefficient of
friction have been used for the connections such as
the suspension arm and crossmember in order to
stabilize the axial force and to ensure the high axial
force at bolt/nut connections, resulting in improved
reliability.
NOTE: The bolts and nuts with stabilizer for coeffi-
cient of friction mean that the bolts and nuts with sur-
face treatment to stabilize and reduce the coefficient
of friction, allowing to achieve the stable axial force
and to secure the high axial force with low tightening
torque.

PRECAUTIONS BEFORE SERVICE

GENERAL

00-75

PRECAUTIONS FOR INSTALLATION OF
ON-VEHICLE RADIO TRANSMISSION
EQUIPMENT

M1001015500136

The computers (control unit) for various on-vehicle
electronic equipment are provided with sufficient pro-
tective measures against external radio wave inter-
ference. However, because the on-vehicle radio
transmission equipment may affect adversely the
computers (control unit), pay attention to the follow-
ing precautions for installation.

• Install radio transmission equipment and antenna

(including coaxial cables) 200 mm or more away
from the computers (control unit) for on-vehicle
electronic equipment.

• Because radio wave is radiated from the coaxial

cables of the antenna for radio transmission
equipment, do not route the cables in parallel with
the vehicle wiring harness.

• Install only radio transmission equipment with the

frequencies, output, and radio wave types
described in the table.

FREQUENCY, OUTPUT, AND RADIO WAVE
TYPE OF THE RADIO TRANSMISSION
EQUIPMENT

Frequency
(MHz)

Maximum
output power
(W)

Modulation

3.5

50

CW, FM, AM,
SSB

7
14
21
28
50
144
430
1,260

2

•

AC701214 AC

Antenna attachment position

<LANCER>

AC712333AC

Antenna attachment position

<LANCER SPORTBACK>

Install the antenna for radio transmission equipment

only to the position shown in the figure.

APPLICATION OF ANTI-CORROSION
AGENTS AND UNDERCOATS

M1001011000344

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.

VEHICLE WASHING

M1001012000466

AC300832AC

Approximately
40 cm or more

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.

• Spray nozzle distance: Approx. 40 cm or more

• Spray pressure: 3,900 kPa or less

• Spray temperature: 82°C or less

• Time of concentrated spray to one point: within

30 sec.

SUPPLEMENTAL RESTRAINT SYSTEM (SRS)

GENERAL

00-76

SUPPLEMENTAL RESTRAINT SYSTEM (SRS)

M1001009800934

The SRS (Supplemental Restraint System) air bag is
a system that is effective with the seat belt fastened,
and it is designed as a supplemental system of the
seat belt. The air bag inflates upon a frontal collision
or a side collision to protect the passengers.
The SRS consists of air bag modules, SRS air bag
control unit (SRS-ECU), two front impact sensors,
two side impact sensors, SRS warning lamp, clock
spring, passenger’s air bag cut off switch, passen-
ger’s air bag OFF indicator lamp and seat belt pre-
tensioner. Front air bags are located in the centre of
the steering wheel and above the glove box. Knee air
bag is installed under the column cover. Side-airbags
are located inside the front seatback assemblies.
The curtain air bag module is installed in the roof
side sections (from the driver's and the passenger's
front pillars to the rear pillars). Each air bag is made
up of a folded air bag and an inflator unit. The SRS-
ECU under the front floor console monitors the sys-
tem and has a front air bag safing G-sensor, front air

bag analogue G-sensor and a side (curtain) air bag
analogue G-sensor. The front impact sensor is
installed on the front end upper bar in the engine
room and contains an analogue G-sensor and a
microcomputer. The side impact sensor is installed in
the lower parts of the centre pillars and contains an
analogue G-sensor and a microcomputer. The warn-
ing lamp on the instrument panel indicates the opera-
tional status of the SRS. The clock spring is installed
in the steering column. The passenger’s air bag cut
off switch is located above inside the glove box. The
passenger’s air bag OFF indicator lamp is installed in
instrument centre panel. The seat belt pre-tensioner
is built into the driver's and passenger's front seat
belt retractor.
Only authorized service personnel should do work on
or around the SRS components. Those service per-
sonnel should read this manual carefully before start-
ing any such work.