Mitsubishi Eclipse. Manual - part 358

ON-VEHICLE SERVICE

TSB Revision

MULTIPORT FUEL INJECTION (MFI) <2.4L>

13A-925

AK000094AB

M

IGNITION COIL

AK200156AC

HEATED OXYGEN
SENSOR (FRONT)

HEATED OXYGEN
SENSOR (FRONT)
CONNECTOR

N

ACX02501

O

FAN CONTROLLER

AC

AK000075AH

P

TRANSMISSION RANGE SWITCH

ACX02480

Q

VOLUME 
AIRFLOW 
SENSOR

AM

AK101652

AD

FUEL PUMP 
RELAY (2)

FUEL PUMP 
RELAY (1)

R

ON-VEHICLE SERVICE

TSB Revision

MULTIPORT FUEL INJECTION (MFI) <2.4L>

13A-926

THROTTLE BODY (THROTTLE VALVE AREA) 
CLEANING

M1131001000439

1. Start the engine and warm it up until the coolant is heated to 

80

°C (176°F) or higher. Then stop the engine.

2. Remove the air intake hose from the throttle body.

ACX02447

S

AC

DATA LINK CONNECTOR

ACX02509

T

AD

ECM
OR
PCM

AK200158 AC

HEATED OXYGEN
SENSOR (REAR)

HEATED OXYGEN
SENSOR (REAR)
CONNECTOR

U

AK101455AC

V

FUEL TANK
DIFFERENTIAL
PRESSURE
SENSOR

FUEL TANK

FUEL
TEMPERATURE
SENSOR

ACX02516

W

AD

EVAPORATIVE EMISSION
VENTILATION SOLENOID

FUEL TANK

ON-VEHICLE SERVICE

TSB Revision

MULTIPORT FUEL INJECTION (MFI) <2.4L>

13A-927

CAUTION

Do not allow cleaning solvent to enter the bypass passage.
3. Plug the bypass passage inlet (arrow) of the throttle body.
4. Spray cleaning solvent into the valve through the throttle 

body intake port and leave it for approximately five minutes.

5. Start the engine, rev it several times and then idle it for about 

one minute. If the idling speed becomes unstable (or if the 
engine stalls) due to the bypass passage being plugged, 
slightly open the throttle valve to keep the engine running.

6. If the throttle valve deposits are not removed, repeat steps 4 

and 5.

7. Unplug the bypass passage inlet.
8. Attach the air intake hose.
9. Use the scan tool to erase any diagnostic trouble code.
10.Adjust the basic idle speed. (Refer to 

P.13A-928

.)

WARNING

Battery posts, terminals and related accessories con-
tain lead and lead compounds. WASH HANDS AFTER 
HANDLING.

NOTE: If the engine hunts while idling after adjustment of 
the basic idle speed, disconnect the negative cable from the 
battery for 10 seconds or more, and then reconnect it and 
run the engine at idle for about 10 minutes after the engine 
is warmed up.

THROTTLE POSITION SENSOR ADJUSTMENT

M1131001100522

Required Special Tools:

• MB991958 (MUT-III Sub Assembly)

• MB991824: V.C.I.

• MB991827: USB Cable

• MB991911: Main Harness B

• MB991348: Test Harness Set

AK000112AB

AK300810

AB

MB991911

16-PIN

MB991827

MB991824 

ON-VEHICLE SERVICE

TSB Revision

MULTIPORT FUEL INJECTION (MFI) <2.4L>

13A-928

CAUTION

To prevent damage to scan tool MB991958, always turn the 
ignition switch to the "LOCK" (OFF) position before con-
necting or disconnecting the scan tool MB991958.
1. Connect scan tool MB991958 to the data link connector. 

When not using scan tool follow the steps below.

(1) Disconnect the throttle position sensor connector, and 

connect the special tool MB991348 in between. (All 
terminals should be connected.)

(2) Connect a digital voltmeter between throttle position 

sensor terminal No. 3 (sensor output) and terminal No. 1 
(sensor ground).

2. Turn the ignition switch to the "ON" position (but do not start 

the engine).

3. Check the throttle position sensor output voltage.

Standard value: 535 

− 735 millivolts

4. If not within the standard value range, adjust by loosening 

throttle position sensor mounting bolts and turning the 
throttle position sensor body. After adjusting, tighten the 
bolts securely.

5. Turn the ignition switch to the "LOCK" (OFF) position.
6. Disconnect scan tool MB991958. When the scan tool is not 

used, remove special tool MB991348, and connect the 
throttle position sensor connector.

BASIC IDLE SPEED ADJUSTMENT

M1131001800576

Required Special Tools:

• MB991958 (MUT-III Sub Assembly)

• MB991824: V.C.I.

• MB991827: USB Cable

• MB991911: Main Harness B

NOTE: The standard idle speed has been adjusted with the 
speed adjusting screw (SAS), by the manufacturer, and there 
should be no need for readjustment.
NOTE: If the adjustment has been changed by mistake, the idle 
speed may become too high or the idle speed may drop too low 
when loads A/C, defogger, etc. are placed on the engine. If this 
occurs, adjust by the following procedure.

ACX02472

THROTTLE
POSITION
SENSOR

AD

AKX01636AB

TERMINAL 3
(SENSOR OUTPUT)

TERMINAL 1
(SENSOR 
 GROUND)

MB991348

AK000113AB