Mitsubishi Eclipse / Eclipse Spyder (2000-2002). Service and repair manual — part 207

MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS

TSB Revision

MULTIPORT FUEL INJECTION (MFI) <3.0L ENGINE>

13B-27

STEP 4. Check connector B-14 at the volume air flow
sensor for damage.
Q: Is the connector in good condition?

YES : Repair harness wire between MFI relay connector A-

21X terminal 1 and volume air flow sensor connector
B-14 terminal 4 because of harness damage. Then go
to Step 13.

NO : Repair or replace it. Refer to GROUP 00E, Harness

Connector Inspection (

P.00E-2

). Then go to Step 13.

STEP 5. Check connector B-14 at volume air flow sensor
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 (

P.00E-2

). Then go to Step 13.

STEP 6. Check the sensor supply voltage at volume air
flow sensor harness side connector B-14.
(1) Disconnect the connector B-14 and measure at the harness

side.

(2) Turn the ignition switch to the "ON" position.
(3) Measure the voltage between terminal 3 and ground.

•

Voltage should be between 4.8 and 5.2 volts.

(4) Turn the ignition switch to the "LOCK" (OFF) position.

Q: Is the voltage normal?

YES : Go to Step 9.
NO : Go to Step 7.

ACX02480

CONNECTOR : B-14

AC

VOLUME AIR
FLOW SENSOR

ACX02480

CONNECTOR : B-14

AC

VOLUME AIR
FLOW SENSOR

AKX01406 AC

B-14 HARNESS
SIDE CONNECTOR

7 6 5 4 3 2 1

MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS

TSB Revision

MULTIPORT FUEL INJECTION (MFI) <3.0L ENGINE>

13B-28

STEP 7. Check connector C-58 at ECM <M/T> or connector
C-55 at PCM <A/T> for damage.
Q: Is the harness connector in good condition?

YES : Go to Step 8.
NO : Repair or replace it. Refer to GROUP 00E, Harness

Connector Inspection (

P.00E-2

). Then go to Step 13.

STEP 8. Check for short circuit to ground between volume
air flow sensor connector B-14 terminal 3 and ECM
connector C-58 terminal 61 <M/T> or PCM connector C-55
terminal 65 <A/T>.
Q: Is the harness wire in good condition?

YES : Replace the ECM or PCM. Then go to Step 13.
NO : Repair it. Then go to Step 13.

STEP 9. Check the continuity at volume air flow sensor
harness side connector B-14.
(1) Disconnect the connector B-14 and measure at the harness

side.

(2) Check for the continuity between terminal 5 and ground.

•

Should be less than 2 ohm.

Q: Is the continuity normal?

YES : Go to Step 12.
NO : Go to Step 10.

AK000225

CONNECTOR : C-58<M/T>, C-55<A/T>

C-55

C-58

PCM<A/T>

ECM<M/T>

AI

ACX02480

CONNECTOR : B-14

AC

VOLUME AIR
FLOW SENSOR

AK000225

CONNECTOR : C-58<M/T>, C-55<A/T>

C-55

C-58

PCM<A/T>

ECM<M/T>

AI

AKX01409AC

B-14 HARNESS
SIDE CONNECTOR

7 6 5 4 3 2 1

MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS

TSB Revision

MULTIPORT FUEL INJECTION (MFI) <3.0L ENGINE>

13B-29

STEP 10. Check connector C-58 at ECM <M/T> or
connector C-55 at PCM <A/T> for damage.
Q: Is the connector in good condition?

YES : Go to Step 11.
NO : Repair or replace it. Refer to GROUP 00E, Harness

Connector Inspection (

P.00E-2

). Then go to Step 13.

STEP 11. Check for open circuit and harness damage
between volume air flow sensor connector B-14 terminal 5
and ECM connector C-58 terminal 49 <M/T> or PCM
connector C-55 terminal 57 <A/T>.
Q: Is the harness wire in good condition?

YES : Replace the ECM or PCM. Then go to Step 13.
NO : Repair it. Then go to Step 13.

STEP 12. Check connector C-58 at ECM <M/T> or
connector C-55 at PCM <A/T> for damage.
Q: Is the connector in good condition?

YES : Replace the volume air flow sensor. Then go to Step

13.

NO : Repair or replace it. Refer to GROUP 00E, Harness

Connector Inspection (

P.00E-2

). Then go to Step 13.

AK000225

CONNECTOR : C-58<M/T>, C-55<A/T>

C-55

C-58

PCM<A/T>

ECM<M/T>

AI

ACX02480

CONNECTOR : B-14

AC

VOLUME AIR
FLOW SENSOR

AK000225

CONNECTOR : C-58<M/T>, C-55<A/T>

C-55

C-58

PCM<A/T>

ECM<M/T>

AI

AK000225

CONNECTOR : C-58<M/T>, C-55<A/T>

C-55

C-58

PCM<A/T>

ECM<M/T>

AI

MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS

TSB Revision

MULTIPORT FUEL INJECTION (MFI) <3.0L ENGINE>

13B-30

STEP 13. Test the OBD-II drive cycle.
(1) Carry out a test drive with the drive cycle pattern. Refer to

P.13B-4

, Procedure 6

−

Other Monitor.

(2) Check the diagnostic trouble code (DTC).

Q: Is the DTC P0101 is output?

YES : Retry the troubleshooting.
NO : The inspection is complete.