Mitsubishi Eclipse. Manual - part 706

EMISSION CONTROL

TSB Revision

ENGINE AND EMISSION CONTROL

17-105

<3.0L ENGINE>

COMPONENT LOCATION

M1173007500186

AK300573

FUEL TANK DIFFERENTIAL
PRESSURE SENSOR

LIQUID SEPARATOR

EVAPORATIVE
EMISSION 
CANISTER

EVAPORATIVE 
EMISSION 
PURGE 
SOLENOID 
ON: OPEN

ECM <M/T>
PCM <A/T>

INTAKE AIR TEMPERATURE
SENSOR

ENGINE COOLANT 
TEMPERATURE SENSOR

VOLUME AIRFLOW SENSOR

FUEL
TANK

MFI RELAY

FUEL OVERFLOW
LIMITER VALVE

FUEL CUT
OFF VALVE

LEVELING VALVE

EVAPORATIVE EMISSION 
VENTILATION VALVE

AIR FILTER

EVAPORATIVE EMISSION 
VENTILATION SOLENOID
ON: CLOSED

AB

BAROMETRIC PRESSURE 
SENSOR

AK103688

EVAPORATIVE EMISSION 
PURGE SOLENOID VALVE
<2.4L ENGINE>

AD

AK103743AF

EVAPORATIVE EMISSION 
PURGE SOLENOID VALVE
<3.0L ENGINE – WITHOUT IMT>

AK102961

AC

EVAPORATIVE EMISSION PURGE
SOLENOID
<3.0L ENGINE – WITH IMT>

AKX01305

EVAPORATIVE EMISSION 
VENTILATION SOLENOID

FUEL TANK

AC

EMISSION CONTROL

TSB Revision

ENGINE AND EMISSION CONTROL

17-106

PURGE CONTROL SYSTEM CHECK (PURGE FLOW CHECK)

M1173001400222

Required Special Tool:
MB995061: Purge Flow Indicator
1. Disconnect the purge hose from the evaporative emission 

(EVAP) purge solenoid, and connect special tool MB995061 
between the EVAP purge solenoid and the purge hose.

2. Before inspection and adjustment, set the vehicle in the 

following conditions:

• Engine coolant temperature: 80 − 95°C (176 − 203°F)

• Lights, electric cooling fan and accessories: OFF

• Transaxle: Neutral (A/T − P range)

3. Run the engine at idle for more than four minutes.
4. Check the purge flow volume when engine is revved 

suddenly several times.

Standard value: Momentarily 20 cm

3

/s (2.5 SCFH) or 

more.

AK300654

THROTTLE BODY

INTAKE MANIFOLD

FROM 
AIR CLEANER

TO 
COMBUSTION
CHAMBER

OFF

ON

EVAPORATIVE EMISSION
PURGE SOLENOID
(ON: OPENED)

PURGE
FLOW
INDICATOR
(MB995061)

PURGE HOSE

EVAPORATIVE EMISSION
CANISTER

AB

EMISSION CONTROL

TSB Revision

ENGINE AND EMISSION CONTROL

17-107

5. If the purge flow volume is less than the standard value, 

check it again with the vacuum hose disconnected from the 
EVAP canister. If the purge flow volume is less than the 
standard value, check the vacuum port and the vacuum 
hose for clogging. Also check the EVAP purge solenoid. If 
the purge flow volume is at the standard value, replace the 
EVAP canister.

EVAPORATIVE EMISSION PURGE SOLENOID 
CHECK

M1173001700212

1. Remove the air intake hose <2.4L ENGINE>.
2. Disconnect the vacuum hose (black, black with red paint 

mark) from the evaporative emission (EVAP) purge 
solenoid.
NOTE: When disconnecting the vacuum hose, always place 
an identification mark so that it can be reconnected at its 
original position.

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

purge solenoid (refer to the illustration at left).

5. As described in the chart below, check airtightness by 

applying a vacuum with voltage applied directly from the 
battery to the EVAP purge solenoid valve and without 
applying voltage.

6. Measure the resistance between the terminals of the EVAP 

purge solenoid.

Standard value: 30 

− 34 Ω [at 20°C (68°F)]

7. Replace solenoid if resistance is out of specification.

VOLUME AIRFLOW SENSOR CHECK

M1173007900496

<2.4L ENGINE>

To inspect the sensor, refer to GROUP 13A, Multiport Fuel 
Injection (MFI) <2.4L> 

− Multiport Fuel Injection (MFI) Diagno-

sis 

− Diagnostic Trouble Code Chart 

P.13A-24

.

BATTERY POSITIVE 
VOLTAGE

NORMAL CONDITION

Applied

Vacuum leaks

Not applied

Vacuum maintained

AKX01308 AB

A

B

AKX01309

EMISSION CONTROL

TSB Revision

ENGINE AND EMISSION CONTROL

17-108

<3.0L ENGINE>

To inspect the sensor, refer to GROUP 13B, Multiport Fuel 
Injection (MFI) <3.0L> 

− Multiport Fuel Injection (MFI) Diagno-

sis 

− Diagnostic Trouble Code Chart 

P.13B-23

.

BAROMETRIC PRESSURE SENSOR CHECK

M1173008000247

<2.4L ENGINE>

To inspect the sensor, refer to GROUP 13A, Multiport Fuel 
Injection (MFI) <2.4L> 

− Multiport Fuel Injection (MFI) Diagno-

sis 

− Diagnostic Trouble Code Chart 

P.13A-24

.

<3.0L ENGINE>

To inspect the sensor, refer to GROUP 13B, Multiport Fuel 
Injection (MFI) <3.0L> 

− Multiport Fuel Injection (MFI) Diagno-

sis 

− Diagnostic Trouble Code Chart 

P.13B-23

.

ENGINE COOLANT TEMPERATURE SENSOR 
CHECK

M1173008100471

<2.4L ENGINE>

To inspect the sensor, refer to GROUP 13A, Multiport Fuel 
Injection (MFI) <2.4L> 

− Multiport Fuel Injection (MFI) Diagno-

sis 

− Diagnostic Trouble Code Chart 

P.13A-24

.

<3.0L ENGINE>

To inspect the sensor, refer to GROUP 13B, Multiport Fuel 
Injection (MFI) <3.0L> 

− Multiport Fuel Injection (MFI) Diagno-

sis 

− Diagnostic Trouble Code Chart 

P.13B-23

.

INTAKE AIR TEMPERATURE SENSOR CHECK

M1173008200241

<2.4L ENGINE>

To inspect the sensor, refer to GROUP 13A, Multiport Fuel 
Injection (MFI) <2.4L> 

− Multiport Fuel Injection (MFI) Diagno-

sis 

− Diagnostic Trouble Code Chart 

P.13A-24

.

<3.0L ENGINE>

To inspect the sensor, refer to GROUP 13B, Multiport Fuel 
Injection (MFI) <3.0L> 

− Multiport Fuel Injection (MFI) Diagno-

sis 

− Diagnostic Trouble Code Chart 

P.13B-23

.

FUEL TANK DIFFERENTIAL PRESSURE SENSOR 
CHECK

M1173007700191

To inspect the sensor, refer to GROUP 13C, Fuel Supply 

− Fuel 

Tank 

− Inspection − Fuel Tank Differential Pressure Sensor 

Check 

P.13C-16

.