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.