Mitsubishi Galant. Manual — part 381

EMISSION CONTROL

TSB Revision

ENGINE AND EMISSION CONTROL

17-94

3. Connect a hand vacuum pump to nipple (A) of the EGR

solenoid. (Refer to the illustration at left.)

4. Check airtightness by applying a vacuum with voltage

applied directly from the battery to the EGR solenoid and
without applying voltage.

5. Measure the resistance between the terminals of the EGR

solenoid.

Standard value: 29

−−−−

35

Ω

Ω

Ω

Ω

[at 20

°°°°

C (68

°°°°

F)]

6. Replace the solenoid if resistance is out of specification.

VOLUME AIR FLOW SENSOR CHECK

M1173007900087

<2.4L ENGINE>

To inspect the sensor, refer to GROUP 13A (2.4L), Multiport
Fuel Injection (MFI) Diagnosis - Diagnostic Trouble Code Chart

P.13A-20

.

<3.0L ENGINE>

To inspect the sensor, refer to GROUP 13B (3.0L), Multiport
Fuel Injection (MFI) Diagnosis - Diagnostic Trouble Code Chart

P.13B-19

.

ENGINE COOLANT TEMPERATURE SENSOR
CHECK

M1173008100084

<2.4L ENGINE>

To inspect the sensor, refer to GROUP 13A (2.4L), Multiport
Fuel Injection (MFI) Diagnosis - Diagnostic Trouble Code Chart

P.13A-20

.

<3.0L ENGINE>

To inspect the sensor, refer to GROUP 13B (3.0L), Multiport
Fuel Injection (MFI) Diagnosis - Diagnostic Trouble Code Chart

P.13B-19

.

BATTERY POSITIVE
VOLTAGE

NORMAL CONDITION

Not applied

Vacuum leaks

Applied

Vacuum maintained

AKX00351

A

B

AB

AKX00352

EMISSION CONTROL

TSB Revision

ENGINE AND EMISSION CONTROL

17-95

CRANKSHAFT POSITION SENSOR CHECK

M1173008300044

<2.4L ENGINE>

To inspect the sensor, refer to GROUP 13A (2.4L), Multiport
Fuel Injection (MFI) Diagnosis - Diagnostic Trouble Code Chart

P.13A-20

.

<3.0L ENGINE>

To inspect the sensor, refer to GROUP 13B (3.0L), Multiport
Fuel Injection (MFI) Diagnosis - Diagnostic Trouble Code Chart

P.13B-19

.

EVAPORATIVE EMISSION CANISTER AND FUEL TANK PRESSURE RELIEF
VALVE

REMOVAL AND INSTALLATION

M1173004800069

Pre-removal and Post-installation Operation
Fuel tank assembly Removal and Installation (Refer to
GROUP 13C

P.13C-6

.)

AC002235

1

2

3

4

5

6

7

8

9

10

AB

REMOVAL STEPS

1. PROTECTOR
2. CANISTER UPPER BRACKET
3. CANISTER ASSEMBLY
4. VENT HOSE
5. OVER VENT VALVE MODULE

6. BRACKET
7. VENT PIPE
8. VENT HOSE
9 . VENT HOSE
10. VAPOR HOSE

REMOVAL STEPS (Continued)

EMISSION CONTROL

TSB Revision

ENGINE AND EMISSION CONTROL

17-96

INSPECTION

M1173004600065

ORVR VENT VALVE MODULE CHECK

1. Blow air through over vent valve module nipple (A). Check

that the air flows out of nipple (B) and nipple (C).

2. Connect a hand vacuum pump to nipple (A) of the over vent

valve module.

3. With air flow through nipple (C) obstructed, apply a vacuum

and check that the vacuum is maintained.

AC001912AB

A

B

C

EVAPORATIVE EMISSION
VENTILATION SOLENOID

AIR FILTER

VENT VALVE

AC001913AB

A

C

EMISSION CONTROL

TSB Revision

ENGINE AND EMISSION CONTROL

17-97

4. Check air tightness by applying a vacuum with voltage

applied directly from the battery to the over vent valve
module and without applying voltage.

5. Measure the resistance between the terminals of the

solenoid.

Standard value: 17

−−−−

21

Ω

Ω

Ω

Ω

[at 20

°°°°

C (68

°°°°

F)]

6. Replace over vent valve module if resistance is out of

specification.

CATALYTIC CONVERTER

GENERAL INFORMATION (CATALYTIC CONVERTER)

M1173005300067

The three-way catalytic converter, together with the
closed loop air-fuel ratio control based on the oxygen
sensor signal, oxidizes carbon monoxides (CO) and
hydrocarbons (HC) and reduces nitrogen oxides
(NOx).

When the mixture is controlled at stoichiometric air-
fuel ratio, the three-way catalytic converter provides
the highest purification against the three
constituents, namely, CO, HC and NOx.

BATTERY VOLTAGE

NORMAL CONDITION

Applied

Vacuum maintained

Not applied

Vacuum leaks

AC001914

A

AB

AC001915