Mitsubishi Eclipse / Eclipse Spyder (2000-2002). Service and repair manual - part 87

MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS

TSB Revision

MULTIPORT FUEL INJECTION (MFI) <2.4L ENGINE>

13A-47

STEP 8. Check the sensor supply voltage at ECM
connector C-60 <M/T> or PCM connector C-54 <A/T> by
backprobing.
(1) Do not disconnect the connector C-60 <M/T> or C-54 <A/

T>.

(2) Turn the ignition switch to the "ON" position.
(3) Measure the voltage between terminal 81 <M/T> or 46 <A/

T> and ground by backprobing.

•

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 10.

STEP 9. Check connector B-14 at the barometric pressure
sensor and connector C-60 at ECM <M/T> or connector C-
54 at PCM <A/T> for damage.
Q: Is the connector in good condition?

YES : Repair harness wire between barometric pressure

sensor connector B-14 terminal 1 and ECM connector
C-60 terminal 81 <M/T> or PCM connector C-54
terminal 46 <A/T> because of open circuit or harness
damage. Then go to Step 18.

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

Connector Inspection (

P.00E-2

). Then go to Step 18.

AK000283

7172 73 74 75 76 77 78 79 80 81

82 83 84 85 86 87 88 89 90

<M/T>

C-60 CONNECTOR
HARNESS SIDE VIEW

AK000284

C-54 CONNECTOR
HARNESS SIDE VIEW

46
57
66

45
56
65

44
55

43
49

42
48
59

41
47
58

53
63

52
62

51
61

50
60

<A/T>

ACX02480

CONNECTOR : B-14

BAROMETRIC
PRESSURE
SENSOR

AK000280

C-54

C-60

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

CONNECTORS:C-60<M/T>,C-54<A/T>

MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS

TSB Revision

MULTIPORT FUEL INJECTION (MFI) <2.4L ENGINE>

13A-48

STEP 10. Check connector B-14 at the barometric pressure
sensor and connector C-60 at ECM <M/T> or connector C-
54 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 18.

STEP 11. Check for short circuit to ground between
barometric pressure sensor connector B-14 terminal 1 and
ECM connector C-60 terminal 81 <M/T> or PCM connector
C-54 terminal 46 <A/T>.
Q: Is the harness wire in good condition?

YES : Replace the ECM or PCM. Then go to Step 18.
NO : Repair it. Then go to Step 18.

ACX02480

CONNECTOR : B-14

BAROMETRIC
PRESSURE
SENSOR

AK000280

C-54

C-60

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

CONNECTORS:C-60<M/T>,C-54<A/T>

ACX02480

CONNECTOR : B-14

BAROMETRIC
PRESSURE
SENSOR

AK000280

C-54

C-60

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

CONNECTORS:C-60<M/T>,C-54<A/T>

MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS

TSB Revision

MULTIPORT FUEL INJECTION (MFI) <2.4L ENGINE>

13A-49

STEP 12. Check the ground voltage at barometric pressure
sensor connector B-14 by backprobing.
(1) Do not disconnect the connector B-14.
(2) Turn the ignition switch to the "ON" position.
(3) Measure the voltage between terminal 5 and ground by

backprobing.

•

Voltage should be 0.5 volt or less.

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

Q: Is the voltage normal?

YES : Go to Step 15.
NO : Go to Step 13.

STEP 13. Check connector B-14 at the barometric pressure
sensor and connector C-60 at ECM <M/T> or connector C-
54 at PCM <A/T> for damage.
Q: Is the connector in good condition?

YES : Go to Step 14.
NO : Repair or replace it. Refer to GROUP 00E, Harness

Connector Inspection (

P.00E-2

). Then go to Step 18.

AKX01517

B-14 CONNECTOR
HARNESS
SIDE VIEW

1 2 3 4 5 6 7

ACX02480

CONNECTOR : B-14

BAROMETRIC
PRESSURE
SENSOR

AK000280

C-54

C-60

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

CONNECTORS:C-60<M/T>,C-54<A/T>

MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS

TSB Revision

MULTIPORT FUEL INJECTION (MFI) <2.4L ENGINE>

13A-50

STEP 14. Check for harness damage between barometric
pressure sensor connector B-14 terminal 5 and ECM
connector C-60 terminal 92 <M/T> or PCM connector C-54
terminal 57 <A/T>.
Q: Is the harness wire in good condition?

YES : Replace the ECM or PCM. Then go to Step 18.
NO : Repair it. Then go to Step 18.

STEP 15. Check connector B-14 at barometric pressure
sensor for damage.
Q: Is the connector in good condition?

YES : Go to Step 16.
NO : Repair or replace it. Refer to GROUP 00E, Harness

Connector Inspection (

P.00E-2

). Then go to Step 18.

ACX02480

CONNECTOR : B-14

BAROMETRIC
PRESSURE
SENSOR

AK000280

C-54

C-60

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

CONNECTORS:C-60<M/T>,C-54<A/T>

ACX02480

CONNECTOR : B-14

BAROMETRIC
PRESSURE
SENSOR

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