
MPI –
Troubleshooting
13-67
RESISTANCE AND CONTINUITY BETWEEN HARNESS SIDE CONNECTORS AND TERMINALS
Engine-ECU Harness Side Connector Terminal Arrangement
Terminal No.
Inspection item
Normal condition (Check condition)
1 – 12
No.1 injector
2 – 3
Ω
(At 20
_
C)
14 – 12
No.2 injector
2 – 12
No.3 injector
15 – 12
No.4 injector
3 – 12
Fuel pressure control valve
28 – 36
Ω
(At 20
_
C)
4 – 12
Stepper motor coil (A1)
28 – 33
Ω
(At 20
_
C)
17 – 12
Stepper motor coil (A2)
5 – 12
Stepper motor coil (B1)
18 – 12
Stepper motor coil (B2)
6 – 12
Secondary air control solenoid valve
28 – 36
Ω
(At 20
_
C)
11 – 12
Wastegate solenoid valve
62 – 74
Ω
(At 20
_
C)
60 – 12
Oxygen sensor heater
<EVOLUTION-V, VI>
11 – 18
Ω
(at 20
_
C)
13 – Body earth
Engine-ECU earth
Continuity established (0
Ω
)
26 – Body earth
72 – 92
Intake air temperature sensor
5.3 – 6.7 k
Ω
(When intake air temperature is 0
_
C)
2.3 – 3.0 k
Ω
(When intake air temperature is 20
_
C)
1.0 – 1.5 k
Ω
(When intake air temperature is 40
_
C)
0.30 – 0.42 k
Ω
(When intake air temperature is 80
_
C)
74 – 77
High temperature sensor
3
Ω
or less
83 – 92
Engine coolant temperature sensor
5.1 – 6.5 k
Ω
(When coolant temperature is 0
_
C)
2.1 – 2.7 k
Ω
(When coolant temperature is 20
_
C)
0.9 – 1.3 k
Ω
(When coolant temperature is 40
_
C)
0.26 – 0.36 k
Ω
(When coolant temperature is 80
_
C)
87 – 92
Idle position switch
Continuity established (when throttle valve is at idle
position)
No continuity (when throttle valve is slightly open)
91 – Body earth
–
Continuity established