Mitsubishi Galant (2004+). Manual — part 1099
MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS
TSB Revision
MULTIPORT FUEL INJECTION (MFI) <3.8L ENGINE>
13B-89
STEP 6. Check for short circuit to ground between
manifold absolute pressure sensor connector B-02
(terminal No. 3) and PCM connector B-21 (terminal No. 68).
Q: Is the harness wire in good condition?
YES : Go to Step 11.
NO : Repair it. Then go to Step 12.
STEP 7. Check harness connector B-02 at the manifold
absolute pressure sensor for damage.
Q: Is the connector in good condition?
YES : Repair harness wire between manifold absolute
pressure sensor connector B-02 (terminal No. 3) and
PCM connector B-20 (terminal No. 68) because of
open circuit. Then go to Step 12.
NO : Repair or replace it. Refer to GROUP 00E, Harness
Connector Inspection
. Then go to Step 12.
AK303023
1
2
3
CONNECTOR: B-02
AB
MANIFOLD
ABSOLUTE
PRESSURE
SENSOR
INTAKE
MANIFOLD
B-02 (B)
HARNESS
CONNECTOR:
COMPONENT SIDE
AK303018
55
56
54 53 52 51
57
62 61 60 59 58
63
69 68 67 66 65 64
70
75 74 73 72 71
76
82 81 80 79 78 77
83
CONNECTOR: B-21
PCM
AB
HARNESS CONNECTOR:
COMPONENT SIDE
AIR CLEANER
B-21 (B)
AK303023
1
2
3
CONNECTOR: B-02
AB
MANIFOLD
ABSOLUTE
PRESSURE
SENSOR
INTAKE
MANIFOLD
B-02 (B)
HARNESS
CONNECTOR:
COMPONENT SIDE
MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS
TSB Revision
MULTIPORT FUEL INJECTION (MFI) <3.8L ENGINE>
13B-90
STEP 8. Check harness connector B-02 at the manifold
absolute pressure sensor and connector B-22 at PCM for
damage.
Q: Is the harness connector in good condition?
YES : Go to Step 9.
NO : Repair or replace it. Refer to GROUP 00E, Harness
Connector Inspection
. Then go to Step 12.
AK303023
1
2
3
CONNECTOR: B-02
AB
MANIFOLD
ABSOLUTE
PRESSURE
SENSOR
INTAKE
MANIFOLD
B-02 (B)
HARNESS
CONNECTOR:
COMPONENT SIDE
AK303016
104
96
94
95
93 92 91
99 98 97
103 102 101 100
108 107 106 105
113 112 111 110 109
CONNECTOR: B-22
B-22 (B)
PCM
AB
HARNESS CONNECTOR:
COMPONENT SIDE
AIR CLEANER
MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS
TSB Revision
MULTIPORT FUEL INJECTION (MFI) <3.8L ENGINE>
13B-91
STEP 9. Measure the sensor output voltage at PCM
connector B-22 by using power plant ECU check harness
special tool MB991923.
(1) Disconnect the all PCM connectors and connect power
plant ECU check harness special tool MB991923 between
the separated connectors.
(2) Turn the ignition switch to the "ON" position.
AK303016
104
96
94
95
93 92 91
99 98 97
103 102 101 100
108 107 106 105
113 112 111 110 109
CONNECTOR: B-22
B-22 (B)
PCM
AB
HARNESS CONNECTOR:
COMPONENT SIDE
AIR CLEANER
AK202956
104
96
94
95
93 92 91
99 98 97
103 102 101 100
108 107 106 105
113 112 111 110 109
AB
POWER PLANT ECU
CHECK HARNESS CONNECTOR
MB991923
PCM
MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS
TSB Revision
MULTIPORT FUEL INJECTION (MFI) <3.8L ENGINE>
13B-92
(3) Measure the voltage between terminal No. 102 and ground.
• When altitude is 0 m (0 foot), voltage should be 3.7 and
4.3 volts.
• When altitude is 600 m (1,969 feet), voltage should be
3.4 and 4.0 volts.
• When altitude is 1,200 m (3,937 feet), voltage should be
3.2 and 3.8 volts.
• When altitude is 1,800 m (5,906 feet), voltage should be
2.9 and 3.5 volts.
(4) Turn the ignition switch to the "LOCK" (OFF) position.
Q: Is the measured voltage normal?
YES : Go to Step 11.
NO : Go to Step 10.
STEP 10. Check for open or short circuit to ground
between manifold absolute pressure sensor connector
B-02 (terminal No. 1) and PCM connector B-22 (terminal
No. 102).
Q: Is the harness wire in good condition?
YES : Replace the manifold absolute pressure sensor. Then
go to Step 12.
NO : Repair it. Then go to Step 12.
104
96
94
95
93 92 91
99 98 97
103 102 101 100
108 107 106 105
113 112 111 110 109
AK203035AB
POWER PLANT ECU
CHECK HARNESS
CONNECTOR
AK303023
1
2
3
CONNECTOR: B-02
AB
MANIFOLD
ABSOLUTE
PRESSURE
SENSOR
INTAKE
MANIFOLD
B-02 (B)
HARNESS
CONNECTOR:
COMPONENT SIDE
AK303016
104
96
94
95
93 92 91
99 98 97
103 102 101 100
108 107 106 105
113 112 111 110 109
CONNECTOR: B-22
B-22 (B)
PCM
AB
HARNESS CONNECTOR:
COMPONENT SIDE
AIR CLEANER
Нет комментариевНе стесняйтесь поделиться с нами вашим ценным мнением.
Текст