Mitsubishi Eclipse / Eclipse Spyder (2000-2002). Service and repair manual — part 242
![](/vehicles/winoney/isene/butrele/zdi.png)
MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS
TSB Revision
MULTIPORT FUEL INJECTION (MFI) <3.0L ENGINE>
13B-167
•
Under the closed loop air/fuel control.
•
Monitoring time: 30seconds.
Judgment Criteria
•
Multiport fuel injection system does not enter the
closed loop control within about 30 seconds of
meeting all criteria above.
TROUBLESHOOTING HINTS (The most likely
causes for this code to be set are:)
•
Left bank heated oxygen sensor (front)
deteriorated.
•
Open circuit in left bank heated oxygen sensor
(front) output line.
•
Open circuit in left bank heated oxygen sensor
(front) ground line.
•
ECM failed. <M/T>
•
PCM failed. <A/T>
DIAGNOSIS
Required Special Tools
MB998464: Test Harness
STEP 1. Check the exhaust leaks.
Q: Are there any abnormalities?
YES : Go to Step 2.
NO : Repair it. Then go to Step 11.
STEP 2. Check the intake system vacuum leak.
Q: Are there any abnormalities?
YES : Go to Step 3.
NO : Repair it. Then go to Step 11.
STEP 3. Check connector B-24 at the left bank heated
oxygen sensor (front) for damage.
Q: Is the connector in good condition?
YES : Go to Step 4.
NO : Repair or replace it. Refer to GROUP 00E, Harness
Connector Inspection (
AK000212AB
AK000212
CONNECTOR : B-24
![](/vehicles/winoney/isene/butrele/trschenair.png)
MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS
TSB Revision
MULTIPORT FUEL INJECTION (MFI) <3.0L ENGINE>
13B-168
STEP 4. Check the left bank heated oxygen sensor (front).
(1) Disconnect the left bank heated oxygen sensor (front)
connector B-24 and connect test harness special tool
MD998464 to the connector on the left bank heated oxygen
sensor (front) side.
(2) Warm up the engine until engine coolant 80
°
C (176
°
F) or
higher.
CAUTION
Be very careful when connecting the jumper wires;
incorrect connection can damage the left bank heated
oxygen sensor (front).
(3) Use the jumper wires to connect terminal 1 (red clip) to the
positive battery terminal and terminal 3 (blue clip) to the
negative battery terminal.
(4) Connect a digital volt meter between terminal 2 (black clip)
and terminal 4 (white clip).
(5) While repeatedly revving the engine, measure the left bank
heated oxygen sensor (front) output voltage.
Standard value: 0.6
−
1.0 V
Q: Is the voltage at the standard value?
YES : Go to Step 5.
NO : Replace the left bank heated oxygen sensor (front).
Then go to Step 11.
STEP 5. Check connector B-02, B-06, B-25 at left bank
injector for damage.
Q: Is the connector in good condition?
YES : Go to Step 6.
NO : Repair or replace it. Refer to GROUP 00E, Harness
Connector Inspection (
ACX02489AC
CONNECTOR : B-24
LEFT BANK
HEATED OXYGEN
SENSOR
(FRONT)
AKX01624
HEATED
OXYGEN
SENSOR
EQUIPMENT
SIDE
CONNECTOR
MD998464
BLUE
RED
AC
AKX01625AC
BLUE
RED
BLACK
JUMPER
WIRES
WHITE
MD998464
AK000213AB
CONNECTORS : B-02, B-06, B-25
B-02 B-06 B-25
![](/vehicles/winoney/isene/butrele/giconve.png)
MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS
TSB Revision
MULTIPORT FUEL INJECTION (MFI) <3.0L ENGINE>
13B-169
STEP 6. Check the left bank injector.
(1) Disconnect the left bank injector connector B-02, B-06, B-
25.
(2) Measure the resistance between each injector side
connector terminal 1 and 2.
Standard value: 13
−
16 ohm [at 20
°
C (68
°
F)]
Q: Is the resistance standard value?
YES : Go to Step 7.
NO : Replace the faulty injector. Then go to Step 11.
STEP 7. Check connector C-51, C-62 at ECM <M/T> or
connector C-59, C-52 at PCM <A/T> for damage.
Q: Is the connector in good condition?
YES : Go to Step 8.
NO : Repair or replace it. Refer to GROUP 00E, Harness
Connector Inspection (
AK000213AB
CONNECTORS : B-02, B-06, B-25
B-02 B-06 B-25
AK000559
2
1
INJECTOR SIDE
CONNECTOR
AB
AK000225
CONNECTORS : C-51, C-62<M/T>,
C-52, C-59<A/T>
C-52
C-51
PCM<A/T>
ECM<M/T>
AM
C-59
C-62
![](/vehicles/winoney/isene/butrele/indi.png)
MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS
TSB Revision
MULTIPORT FUEL INJECTION (MFI) <3.0L ENGINE>
13B-170
STEP 8. Check for harness damage between left bank
heated oxygen sensor (front) connector B-24 terminal 4
and ECM connector C-62 terminal 71 <M/T> or PCM
connector C-59 terminal 71 <A/T>.
Q: Is the harness wire in good condition?
YES : Go to Step 9.
NO : Repair it. Then go to Step 11.
STEP 9. Check for harness damage between left bank
injector connector and ECM connector <M/T> or PCM
connector <A/T>.
a. Check the harness wire between injector connector B-02
terminal 2 and ECM connector C-51 terminal 9 <M/T> or
PCM connector C-52 terminal 9 <A/T> when checking No.2
cylinder.
b. Check the harness wire between injector connector B-06
terminal 2 and ECM connector C-51 terminal 2 <M/T> or
PCM connector C-52 terminal 2 <A/T> when checking No.4
cylinder.
c. Check the harness wire between injector connector B-25
terminal 2 and ECM connector C-51 terminal 25 <M/T> or
PCM connector C-52 terminal 25 <A/T> when checking
No.6 cylinder.
Q: Is the harness wire in good condition?
YES : Go to Step 10.
NO : Repair it. Then go to Step 11.
AK000212AB
AK000212
CONNECTOR : B-24
AK000225
CONNECTOR : C-62<M/T>, C-59<A/T>
C-59
C-62
PCM<A/T>
ECM<M/T>
AL
AK000213AB
CONNECTORS : B-02, B-06, B-25
B-02 B-06 B-25
AK000225
CONNECTOR : C-51<M/T>, C-52<A/T>
C-52
C-51
PCM<A/T>
ECM<M/T>
AJ
Нет комментариевНе стесняйтесь поделиться с нами вашим ценным мнением.
Текст