Mitsubishi Eclipse. Manual — part 153
MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS
TSB Revision
MULTIPORT FUEL INJECTION (MFI) <2.4L>
13A-105
STEP 2. Check the intake air temperature sensor.
(1) Disconnect the intake air temperature sensor connector
B-14.
(2) Measure the resistance between intake air temperature
sensor side connector terminal No. 5 and No. 6.
(3) Measure resistance while heating the sensor using a hair
drier.
Standard value:
13
− 17 kΩ [at −20°C (−4°F)]
5.3
− 6.7 kΩ [at 0°C (32°F)]
2.3
− 3.0 kΩ [at 20°C (68°F)]
1.0
− 1.5 kΩ [at 40°C (104°F)]
0.56
− 0.76 kΩ [at 60°C (140°F)]
0.30
− 0.42 kΩ [at 80°C (176°F)]
Q: Is the resistance at the standard value?
YES : Go to Step 3.
NO : Replace the volume airflow sensor. Then go to Step 9.
STEP 3. Check connector B-14 at the intake air
temperature sensor for damage.
Q: Is the connector in good condition?
YES : Go to Step 4.
NO : Repair or replace it. Refer to GROUP 00E, Harness
Connector Inspection
. Then go to Step 9.
AK300078
3
4
5
1
2
6
7
CONNECTOR: B-14
AB
B-14 (B)
HARNESS
CONNECTOR:
COMPONENT SIDE
AK000319AB
1 2 3 4 5 6 7
INTAKE AIR TEMPERATURE
SENSOR SIDE CONNECTOR
AKX01621 AB
INTAKE AIR
TEMPERATURE
SENSOR
AK300078
3
4
5
1
2
6
7
CONNECTOR: B-14
AB
B-14 (B)
HARNESS
CONNECTOR:
COMPONENT SIDE
MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS
TSB Revision
MULTIPORT FUEL INJECTION (MFI) <2.4L>
13A-106
STEP 4. Check the continuity at intake air temperature
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 No. 5 and
ground.
• Should be less than 2 ohms.
Q: Is the continuity normal?
YES : Go to Step 7.
NO : Go to Step 5.
AK300078
3
4
5
1
2
6
7
CONNECTOR: B-14
AB
B-14 (B)
HARNESS
CONNECTOR:
COMPONENT SIDE
AKX01409AI
7 6 5 4 3 2 1
B-14 HARNESS
CONNECTOR:
COMPONENT SIDE
MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS
TSB Revision
MULTIPORT FUEL INJECTION (MFI) <2.4L>
13A-107
STEP 5. Check connector C-53 at ECM <M/T> or connector
C-50 at PCM <A/T> 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
. Then go to Step 9.
AK300417
34 33 32
36 35
37
42
45
31
39
38
46
40
41
43
44
CONNECTOR: C-53 <M/T>
C-53 (G)
AB
HARNESS CONNECTOR:
COMPONENT SIDE
AK300414
2
3
4
5
6
7
8
9
11
12
13
14
15
16
17
18
19
20
30
21
22
23
24
25
26
27
28
29
31
32
33
34
35
1
10
C-50 (GR)
CONNECTOR: C-50 <A/T>
AB
HARNESS CONNECTOR:
COMPONENT SIDE
MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS
TSB Revision
MULTIPORT FUEL INJECTION (MFI) <2.4L>
13A-108
STEP 6. Check for open circuit and harness damage
between intake air temperature sensor connector B-14 and
ECM connector C-53 <M/T> or PCM connector C-50 <A/T>.
Q: Is the harness wire in good condition?
YES : Replace the ECM or PCM. Then go to Step 9.
NO : Repair it. Then go to Step 9.
AK300078
3
4
5
1
2
6
7
CONNECTOR: B-14
AB
B-14 (B)
HARNESS
CONNECTOR:
COMPONENT SIDE
AK300417
34 33 32
36 35
37
42
45
31
39
38
46
40
41
43
44
CONNECTOR: C-53 <M/T>
C-53 (G)
AB
HARNESS CONNECTOR:
COMPONENT SIDE
AK300414
2
3
4
5
6
7
8
9
11
12
13
14
15
16
17
18
19
20
30
21
22
23
24
25
26
27
28
29
31
32
33
34
35
1
10
C-50 (GR)
CONNECTOR: C-50 <A/T>
AB
HARNESS CONNECTOR:
COMPONENT SIDE
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