Mitsubishi Colt Ralliart. Manual - part 131

EMISSION CONTROL

ENGINE AND EMISSION CONTROL

17-15

PURGE CONTROL SYSTEM CHECK

M1173001400879

<4A9>

AK304622

Vacuum hose

Plug

AB

1. Disconnect the vacuum hose with R-mark (stamp) 

from purge control solenoid valve and connect a 
hand vacuum pump to the nipple.

2. Plug the vacuum hose.
3. When the engine is cold or hot, apply a vacuum of 

53 kPa, and check the condition of the vacuum.

When engine is cold 

 

(Engine coolant temperature: 40

°C or less)

Engine condition

Normal condition

At idle

Vacuum is maintained.

3,000 r/min

When engine is hot 

 

(Engine coolant temperature: 80

°C or higher)

Engine condition

Normal condition

At idle

Vacuum is maintained.

3,000 r/min (within 3 
minutes after engine 
starts)

Vacuum will leak.

<4G1>

AK402181AE

Purge control 
solenoid valve

1. Disconnect the purge control solenoid valve from 

the inlet manifold and cover the hole with a tape 
and so on.

2. Connect a hand vacuum pump to the purge 

control solenoid valve.

3. When the engine is cold or hot, apply a vacuum of 

53 kPa, and check the condition of the vacuum.

When engine is cold 

 

(Engine coolant temperature: 40

°C or less)

Engine condition

Normal condition

At idle

Vacuum is maintained.

3,000 r/min

When engine is hot 

 

(Engine coolant temperature: 80

°C or higher)

Engine condition

Normal condition

At idle

Vacuum is maintained.

3,000 r/min (within 3 
minutes after engine 
starts)

Vacuum will leak.

PURGE PORT VACUUM CHECK

M1173001500489

<4A9>

AK304623

Vacuum hose

Plug

AB

1. Disconnect the vacuum hose with R-mark (stamp) 

from the purge control solenoid valve and connect 
it to a hand vacuum pump.

2. Plug the nipple from which the vacuum hose was 

removed.

AK100011

AC

Vac-
uum

Engine speed (r/min)

3. Start the engine.
4. Check that a fairly constant negative pressure is 

generated regardless of the engine speed.

5. If no negative pressure is generated, the port is 

probably blocked and should be cleaned.

Main

Index

Group

TOC

EMISSION CONTROL

ENGINE AND EMISSION CONTROL

17-16

<4G1>

AK402182

Adapter

AD

Purge control 
solenoid valve

1. Disconnect the purge control solenoid valve from 

the inlet manifold.

2. Connect the adapter to a hand vacuum pump.
3. Connect the hand vacuum pump to the hole from 

which the purge control solenoid valve was 
removed.

AK100011

AC

Vac-
uum

Engine speed (r/min)

4. Start the engine.
5. Check that a fairly constant negative pressure is 

generated regardless of the engine speed.

6. If no negative pressure is generated, the port is 

probably blocked and should be cleaned.

PURGE CONTROL SOLENOID VALVE 
CHECK

M1173001700568

<4A9>

NOTE: When disconnecting the vacuum hose, 
always make a mark so that it can be reconnected at 
original position.

AK100012 AD

Battery

A

B

1. Disconnect the vacuum hose from the solenoid 

valve.

2. Disconnect the harness connector.
3. Connect a hand vacuum pump to nipple (A) of the 

solenoid valve (refer to the illustration at left).

4. Check airtightness by applying a vacuum with 

voltage applied directly from the battery to the 
purge control solenoid valve and without applying 
voltage.

Battery voltage nipple (B)

Normal 
condition

Applied

opened

Vacuum leaks

closed

Vacuum 
maintained

Not applied

opened

Vacuum leaks

AK100013

5. Measure the resistance between the terminals of 

the solenoid valve.

Standard value: 30 

− 34 Ω (at 20°C)

<4G1>

NOTE: When disconnecting the vacuum hose, 
always make a mark so that it can be reconnected at 
original position.

AK402290AB

A

B

1. Disconnect the purge control solenoid valve from 

the inlet manifold.

2. Disconnect the harness connector.
3. Connect a hand vacuum pump to nipple (A) of the 

solenoid valve (refer to the illustration at left).

Main

Index

Group

TOC

EMISSION CONTROL

ENGINE AND EMISSION CONTROL

17-17

4. Check airtightness by applying a vacuum with 

voltage applied directly from the battery to the 
purge control solenoid valve and without applying 
voltage.

Battery voltage nipple (B)

Normal 
condition

Applied

opened

Vacuum leaks

closed

Vacuum 
maintained

Not applied

opened

Vacuum leaks

AK402291AB

5. Measure the resistance between the terminals of 

the solenoid valve.

Standard value: 30 

− 34 Ω (at 20°C)

CHECK VALVE CHECK <4G1>

M1173006200182

AK200373

Connect a hand vacuum pump to the check valve, 
apply negative pressure and check the airtightness.

Connect nipple colour Normal condition
Black

Negative pressure leaks

Brown

Negative pressure is 
maintained

Main

Index

Group

TOC

EMISSION CONTROL

ENGINE AND EMISSION CONTROL

17-18

CANISTER REMOVAL AND INSTALLATION

M1173004200573

Pre-removal and Post-installation Operation
• Air Cleaner assembly Removal and Installation <4A9> 

(Refer to GROUP 15, Air Cleaner 

P.15-5

).

• Air Cleaner assembly Removal and Installation <4G1> 

(Refer to GROUP 15, Air Cleaner 

P.15-6

).

<Up tp May 2006 models>

AC600432AB

1

2

3

5

6

4

Removal steps 

1.

Purge hose connection

2.

Vapour hose

3.

Vent connector

4.

Vapour hose

5.

Canister

6.

Canister bracket

Removal steps (Continued)

Main

Index

Group

TOC