Mitsubishi Eclipse / Eclipse Spyder (2000-2002). Service and repair manual — part 393

EMISSION CONTROL

TSB Revision

ENGINE AND EMISSION CONTROL

17-91

SYSTEM DIAGRAM

COMPONENT LOCATION

M1173007500023

AKX01303

FUEL TANK DIFFERENTIAL
PRESSURE SENSOR

CHAMBER

LIQUID SEPARATOR

EVAP
CANISTER

EVAPORATIVE
EMISSION
PURGE
SOLENOID
ON: OPEN

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

BAROMETRIC PRESSURE
SENSOR

INTAKE AIR TEMPERATURE
SENSOR

ENGINE COOLANT
TEMPERATURE SENSOR

VOLUME AIR FLOW SENSOR

FUEL
TANK

MFI RELAY

FUEL VENT
VALVE

FUEL CUT
OFF VALVE

LEVELING VALVE

VENT VALVE

AIR FILTER

EVAPORATIVE EMISSION
VENTILATION SOLENOID
ON: CLOSED

AB

AKX01304 AB

EVAPORATIVE EMISSION PURGE
SOLENOID
<2.4L ENGINE>

AKX01305

EVAP VENTILATION SOLENOID

FUEL TANK

AB

AKX01306

EVAPORATIVE EMISSION PURGE
SOLENOID
<3.0L ENGINE>

AB

EMISSION CONTROL

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ENGINE AND EMISSION CONTROL

17-92

PURGE CONTROL SYSTEM CHECK (PURGE FLOW CHECK)

M1173001400040

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.

AKX00340

INTAKE MANIFOLD

THROTTLE BODY

TO COMBUSTION
CHAMBER

FROM
AIR
CLEANER

OFF

ON

EVAP PURGE SOLENOID
(ON: OPENED)

PURGE
FLOW
INDICATOR
(MB995061)

PURGE HOSE

EVAP CANISTER

AB

EMISSION CONTROL

TSB Revision

ENGINE AND EMISSION CONTROL

17-93

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 evaporative emission
purge solenoid. If the purge flow volume is at the standard
value, replace the EVAP canister.

EVAPORATIVE EMISSION PURGE SOLENOID
CHECK

M1173001700041

1. Remove the air intake hose <2.4L Engine>.

2. Disconnect the vacuum hose (black, black with red paint

mark) from the 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. 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.

CHAMBER CHECK

M1173008400030

Remove the vacuum hose and chamber assembly, and check
that the assembly is not clogged by blowing it.

VOLUME AIR FLOW SENSOR CHECK

M1173007900076

<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

.

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

17-94

<3.0L ENGINE>

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

P.13B-18

.

BAROMETRIC PRESSURE SENSOR CHECK

M1173008000043

<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-18

.

ENGINE COOLANT TEMPERATURE SENSOR
CHECK

M1173008100073

<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-18

.

INTAKE AIR TEMPERATURE SENSOR CHECK

M1173008200047

<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-18

.

FUEL TANK DIFFERENTIAL PRESSURE SENSOR
CHECK

M1173007700050

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

−

Fuel Tank Differential Pressure Sensor Check

P.13C-

11

.