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 (
). 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
92
91
AC
<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
54
64
42
48
59
41
47
58
53
63
52
62
51
61
50
60
AD
<A/T>
ACX02480
CONNECTOR : B-14
AF
BAROMETRIC
PRESSURE
SENSOR
AK000280
C-54
C-60
ECM<M/T>
OR
PCM<A/T>
CONNECTORS:C-60<M/T>,C-54<A/T>
BB
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 (
). 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
AF
BAROMETRIC
PRESSURE
SENSOR
AK000280
C-54
C-60
ECM<M/T>
OR
PCM<A/T>
CONNECTORS:C-60<M/T>,C-54<A/T>
BB
ACX02480
CONNECTOR : B-14
AF
BAROMETRIC
PRESSURE
SENSOR
AK000280
C-54
C-60
ECM<M/T>
OR
PCM<A/T>
CONNECTORS:C-60<M/T>,C-54<A/T>
BB
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 (
). Then go to Step 18.
AKX01517
B-14 CONNECTOR
HARNESS
SIDE VIEW
1 2 3 4 5 6 7
AC
ACX02480
CONNECTOR : B-14
AF
BAROMETRIC
PRESSURE
SENSOR
AK000280
C-54
C-60
ECM<M/T>
OR
PCM<A/T>
CONNECTORS:C-60<M/T>,C-54<A/T>
BB
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 (
). Then go to Step 18.
ACX02480
CONNECTOR : B-14
AF
BAROMETRIC
PRESSURE
SENSOR
AK000280
C-54
C-60
ECM<M/T>
OR
PCM<A/T>
CONNECTORS:C-60<M/T>,C-54<A/T>
BB
ACX02480
CONNECTOR : B-14
AF
BAROMETRIC
PRESSURE
SENSOR
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