Mitsubishi Galant. Manual - part 91
MULTIPORT FUEL INJECTION(MFI) DIAGNOSIS
TSB Revision
MULTIPORT FUEL INJECTION (MFI) <2.4L>
13A-45
STEP 6. Check connector B-14 at the barometric pressure
sensor and connector C-40 at PCM for damage.
Q: Is the connector in good condition?
YES : Repair harness wire between barometric pressure
sensor connector B-14 terminal 2 and PCM connector
C-40 terminal 55 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.
STEP 7. Check the sensor supply 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 1 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 12.
NO : Go to Step 8.
STEP 8. Check the sensor supply voltage at PCM
connector C-40 by backprobing.
(1) Do not disconnect the connector C-40.
(2) Turn the ignition switch to the "ON" position.
(3) Measure the voltage between terminal 46 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.
ACX02480
CONNECTOR : B-14
AF
BAROMETRIC
PRESSURE
SENSOR
AK000280
CONNECTOR : C-40
PCM
AV
AKX01521AC
B-14 CONNECTOR
HARNESS
SIDE VIEW
1 2 3 4 5 6 7
AK000284
C-40 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
AC