Mitsubishi Eclipse / Eclipse Spyder (2000-2002). Service and repair manual — part 340

ON-VEHICLE SERVICE

TSB Revision

MULTIPORT FUEL INJECTION (MFI) <3.0L ENGINE>

13B-559

<Right bank and left bank heated oxygen sensor (rear)>
1. Use scan tool MB991502, observe HO2S reading. If values

are unsatisfactory, or if the scan tool is not available, use the
following procedure:

(1) Disconnect the heated oxygen sensor connector and

connect special tool MD998464 to the connector on the
heated oxygen sensor side.

(2) Make sure that there is continuity [11

−

18 ohm at 20

°

C

(68

°

F

)

] between terminal 1 (red clip of special tool) and

terminal 3 (blue clip of special tool) on the heated oxygen
sensor connector.

(3) If there is no continuity, replace the heated oxygen

sensor.

(4) Warm up the engine until engine coolant is 80

°

C (176

°

F

)

or higher.

CAUTION

Be very careful when connecting the jumper wires;
incorrect connection can damage the heated oxygen
sensor.

(5) Use the jumper wires to connect terminal 1 (red clip) of

the heated oxygen sensor connector to the positive
battery terminal and terminal 3 (blue clip) to the negative
battery terminal.

(6) Connect a digital voltage meter between terminal 2 (black

clip) and terminal 4 (white clip).

2. While repeatedly revving the engine, measure the heated

oxygen sensor output voltage.

Standard value:

3. If the sensor is defective, replace the heated oxygen sensor.

NOTE: For removal and installation of the heated oxygen
sensor, refer to GROUP 15, Exhaust Pipe and Main Muffler
(

P.15-21

).

ENGINE

HEATED OXYGEN
SENSOR OUTPUT
VOLTAGE

REMARKS

When revving
engine

0.6

−

1.0V

If you make the air/fuel
ratio rich by revving the
engine repeatedly, a
normal heated oxygen
sensor will output a
voltage of 0.6

−

1.0 V.

AKX01624 AB

MB991316

HEATED
OXYGEN
SENSOR
EQUIPMENT
SIDE
CONNECTOR

BLUE

RED

AKX01625 AB

BLUE

JUMPER
WIRES

BLACK

RED

WHITE

MB991316

ON-VEHICLE SERVICE

TSB Revision

MULTIPORT FUEL INJECTION (MFI) <3.0L ENGINE>

13B-560

INJECTOR CHECK

M1131005200060

<Right bank side (number 1, 3, 5 cylinders)>
1. Disconnect the injector intermediate connector.

2. Measure the resistance between the injector intermediate

connector terminals.

Standard value:

3. Connect the injector intermediate connector.

<Left bank side (number 2, 4, 6 cylinders)>
1. Disconnect the injector connector.

2. Measure the resistance between injector side connector

terminals 1 and 2.

Standard value: 13

−

16

Ω

[at 20

°

C (68

°

F

)

]

3. Connect the injector connector.

IDLE AIR CONTROL MOTOR (STEPPER MOTOR)
CHECK

M1131005400116

Refer to GROUP 13A, On-vehicle Service

−

Idle Air Control

Motor (Stepper Motor) Check (

P.13A-483

).

EVAPORATIVE EMISSION PURGE SOLENOID
CHECK

M1131005600080

Refer to GROUP 17, Emission Control System

−

Evaporative

Emission Control System

−

Evaporative Emission Purge

Solenoid Check (

P.17-93

).

EGR SOLENOID CHECK

M1131005700087

Refer to GROUP 17, Emission Control System

−

Exhaust Gas

Recirculation (EGR) System - EGR Solenoid Check (

P.17-

100

).

INJECTOR NO.

MEASUREMENT
TERMINAL

RESISTANCE

NO.1

1-2

13

−

16

Ω

[20

°

C(68

°

F)]

NO.3

1-3

NO.5

1-4

AK000125

1
3 4

2

AB

AK000126

INJECTOR

TSB Revision

MULTIPORT FUEL INJECTION (MFI) <3.0L ENGINE>

13B-561

IN JEC TO R

REMOVAL AND INSTALLATION

M1131007100111

REMOVAL SERVICE POINT

<<A>> FUEL RAIL/INJECTORS REMOVAL

CAUTION

Do not drop the injector.
Remove the fuel rail with the injectors attached to it.

Pre-removal Operation

•

Fuel Pressure Reduction (Refer to

P.13B-556

.)

•

Engine Coolant Draining [Refer to GROUP 00, Mainte-
nance Service

−

Engine Coolant (Change)

P.00-52

.]

•

Intake Manifold Plenum Removal (Refer to GROUP 15,
Intake Manifold Plenum

P.15-6

.)

Post-installation Operation

•

Intake Manifold Plenum Installation (Refer to GROUP 15,
Intake Manifold Plenum

P.15-6

.)

•

Engine Coolant Refilling [Refer to GROUP 00, Mainte-
nance Service

−

Engine Coolant (Change)

P.00-52

.]

•

Fuel Leakage Inspection

AC001623

1

2

4

5

6

7

8

9

9

9

9

10

11

12

13

11

12

13

10

1

8

2, 6

3, 7

12

11

N

N

N

N

N

N

N

12 ± 1 N·m
100 ± 13 in-lb

4.9 ± 1.0 N·m
44 ± 8 in-lb

8.8 ± 1.0 N·m
78 ± 9 in-lb

ENGINE OIL

AB

3

N

REMOVAL STEPS

1.

INJECTOR CONNECTOR

>>A<<

2.

HIGH-PRESSURE FUEL HOSE
CONNECTION

3.

O-RING

4.

FUEL RETURN HOSE
CONNECTION

5.

VACUUM HOSE CONNECTION

>>A<<

6.

FUEL PRESSURE REGULATOR

7.

O-RING

<<A>>

8.

FUEL RAIL

9

.

INSULATORS

10. INSULATORS

<<A>>

>>A<<

11. INJECTORS
12. O-RING
13. GROMMETS

REMOVAL STEPS (Continued)

INJECTOR

TSB Revision

MULTIPORT FUEL INJECTION (MFI) <3.0L ENGINE>

13B-562

INSTALLATION SERVICE POINT

>>A<< INJECTORS/FUEL PRESSURE REGULATOR/HIGH-
PRESSURE FUEL HOSE INSTALLATION

CAUTION

Do not allow the engine oil to enter the fuel rail, otherwise
it will be damaged.
1. Apply a drop of new engine oil to the O-ring.

2. Turn the injector. To the right and left to install to the fuel rail.

Repeat for fuel pressure regulator and high-pressure fuel
hose.
Be careful not to damage the O-ring. After installing, check
that the item turns smoothly.

3. If it dose not turn smoothly, the O-ring may be trapped,

remove the item, re-install it into the fuel rail and check
again.

4. Tighten the fuel pressure regulator and high-pressure fuel

hose to the specified torque.

Tightening torque:

8.8

±

1.0 N

⋅

m (78

±

9 in-lb) <Fuel pressure regulator>

4.9

±

1.0 N

⋅

m (44

±

8 in-lb) <High-pressure fuel hose>