Mitsubishi Eclipse. Manual — part 173
MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS
TSB Revision
MULTIPORT FUEL INJECTION (MFI) <2.4L>
13A-185
STEP 6. Check the throttle position sensor.
(1) Disconnect the connector B-07.
(2) Measure the resistance between throttle position sensor
side connector terminal No. 1 and No. 4.
Standard value: 3.5
− 6.5 kΩ
(3) Measure resistance between the throttle position sensor
side connector terminal No. 1 and No. 3.
(4) Move the throttle valve from the idle position to the full-open
position.
• Resistance should change smoothly in proportion to the
opening angle of the throttle valve.
Q: Is the resistance normal?
YES : Go to Step 7.
NO : Replace the throttle position sensor. Refer to
, Throttle Body. Then go to Step 11.
AK300402
2 1
3
4
CONNECTOR: B-07
AB
B-07 (B)
HARNESS CONNECTOR:
COMPONENT SIDE
AK000320
1 2 3 4
THROTTLE POSITION
SENSOR SIDE
CONNECTOR
AB
MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS
TSB Revision
MULTIPORT FUEL INJECTION (MFI) <2.4L>
13A-186
STEP 7. Check connector C-60 at ECM <M/T> or connector
C-54, C-57 at PCM <A/T> for damage.
Q: Is the connector in good condition?
YES : Go to Step 8.
NO : Repair or replace it. Refer to GROUP 00E, Harness
Connector Inspection
. Then go to Step 11.
AK300415
82
78
8180
89
90
91
92
79
87
71
74 73 72
76 75
77
85
88
83
84
86
CONNECTOR: C-60 <M/T>
AB
C-60 (G)
HARNESS CONNECTOR:
COMPONENT SIDE
AK300418
42
43
48
49
50
51
52
53
54
55
56
57
46 45 44
58
59
60
61
62
63
64
65
66
47
41
98
78
71
88
89
76
77
72
79
91
73
80
74
75
81
92
82
83
93
84
85
94
86
87
95
96
90
97
CONNECTORS: C-54, C-57 <A/T>
C-57 (GR)
C-54 (GR)
AB
C-57 HARNESS CONNECTOR:
COMPONENT SIDE
C-54 HARNESS CONNECTOR:
COMPONENT SIDE
MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS
TSB Revision
MULTIPORT FUEL INJECTION (MFI) <2.4L>
13A-187
STEP 8. Check for open circuit and short circuit to ground
between throttle position sensor connector B-07 (terminal
No. 1) and ECM connector C-60 (terminal No. 84) <M/T> or
PCM connector C-57 (terminal No. 78) <A/T>.
Q: Is the harness wire in good condition?
YES : Go to Step 9.
NO : Repair it. Then go to Step 11.
AK300402
2 1
3
4
CONNECTOR: B-07
AB
B-07 (B)
HARNESS CONNECTOR:
COMPONENT SIDE
AK300415
82
78
8180
89
90
91
92
79
87
71
74 73 72
76 75
77
85
88
83
84
86
CONNECTOR: C-60 <M/T>
AB
C-60 (G)
HARNESS CONNECTOR:
COMPONENT SIDE
AK300735
98
78
71
88
89
76
77
72
79
91
73
80
74
75
81
92
82
83
93
84
85
94
86
87
95
96
90
97
CONNECTOR: C-57 <A/T>
C-57 (GR)
AB
HARNESS CONNECTOR:
COMPONENT SIDE
MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS
TSB Revision
MULTIPORT FUEL INJECTION (MFI) <2.4L>
13A-188
STEP 9. Check for short circuit to ground between throttle
position sensor connector and auto-cruise control-ECU.
Refer to GROUP 17, Auto Cruise Control System
− Diagnostic
Trouble Code Chart
Q: Is the harness wire in good condition?
YES : Go to Step 10.
NO : Repair it. Then go to Step 11.
STEP 10. Using scan tool MB991958, check data list item
14: Throttle Position Sensor.
CAUTION
To prevent damage to scan tool MB991958, always turn the
ignition switch to the "LOCK" (OFF) position before con-
necting or disconnecting scan tool MB991958.
(1) Connect scan tool MB991958 to the data link connector.
(2) Turn the ignition switch to the "ON" position.
(3) Set scan tool MB991958 to the data reading mode for item
14, Throttle Position Sensor.
• With the throttle valve in the idle position, voltage should
be between 0.535 and 0.735 volt.
• With the throttle valve in the full-open position, voltage
should be between 4.5 and 5.5 volts.
(4) Turn the ignition switch to the "LOCK" (OFF) position.
Q: Is the sensor operating properly?
YES : It can be assumed that this malfunction is intermittent.
Refer to GROUP 00, How to Use
Troubleshooting/Inspection Service Points
NO : Replace the ECM or PCM. Then go to Step 11.
STEP 11. Test the OBD-II drive cycle.
(1) Carry out a test drive with the drive cycle pattern. Refer to
Diagnostic Function
− OBD-II Drive Cycle − Procedure 6 −
Other Monitor
(2) Check the diagnostic trouble code (DTC).
Q: Is DTC P0122 set?
YES : Retry the troubleshooting.
NO : The inspection is complete.
AK300810
AB
MB991911
16-PIN
MB991827
MB991824
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