Infiniti Q45. Manual — part 517
FUEL INJECTOR
EC-707
C
D
E
F
G
H
I
J
K
L
M
A
EC
Wiring Diagram
NBS00276
TBWM1255E
EC-708
FUEL INJECTOR
Specification data are reference values and are measured between each terminal and ground.
Pulse signal is measured by CONSULT-II.
CAUTION:
Do not use ECM ground terminals when measuring input/output voltage. Doing so may result in dam-
age to the ECM's transistor. Use a ground other than ECM terminals, such as the ground.
: Average voltage for pulse signal (Actual pulse signal can be confirmed by oscilloscope.)
TER-
MINAL
NO.
WIRE
COLOR
ITEM
CONDITION
DATA (DC Voltage)
21
22
23
44
W/B
Y
R/L
BR
Fuel injector No. 5
Fuel injector No. 3
Fuel injector No. 1
Fuel injector No. 7
[Engine is running]
●
Warm-up condition
●
Idle speed
NOTE:
The pulse cycle changes depending on rpm
at idle
BATTERY VOLTAGE
(11 - 14V)
[Engine is running]
●
Warm-up condition
●
Engine speed: 2,000 rpm
BATTERY VOLTAGE
(11 - 14V)
PBIB0042E
PBIB0043E
FUEL INJECTOR
EC-709
C
D
E
F
G
H
I
J
K
L
M
A
EC
TBWM1256E
EC-710
FUEL INJECTOR
Specification data are reference values and are measured between each terminal and ground.
Pulse signal is measured by CONSULT-II.
CAUTION:
Do not use ECM ground terminals when measuring input/output voltage. Doing so may result in dam-
age to the ECM's transistor. Use a ground other than ECM terminals, such as the ground.
: Average voltage for pulse signal (Actual pulse signal can be confirmed by oscilloscope.)
Diagnostic Procedure
NBS00277
1.
INSPECTION START
Turn ignition switch to START.
Is any cylinder ignited?
Yes or No
Yes (With CONSULT-II)>>GO TO 2.
Yes (Without CONSULT-II)>>GO TO 3.
No
>> GO TO 3.
2.
CHECK OVERALL FUNCTION
With CONSULT-II
1.
Start engine.
2.
Perform “POWER BALANCE” in “ACTIVE TEST” mode with
CONSULT-II.
3.
Make sure that each circuit produces a momentary engine
speed drop.
OK or NG
OK
>> INSPECTION END
NG
>> GO TO 3.
TER-
MINAL
NO.
WIRE
COLOR
ITEM
CONDITION
DATA (DC Voltage)
40
41
42
63
BR
G
B/R
L
Fuel injector No. 6
Fuel injector No. 4
Fuel injector No. 2
Fuel injector No. 8
[Engine is running]
●
Warm-up condition
●
Idle speed
NOTE:
The pulse cycle changes depending on rpm
at idle
BATTERY VOLTAGE
(11 - 14V)
[Engine is running]
●
Warm-up condition
●
Engine speed: 2,000 rpm
BATTERY VOLTAGE
(11 - 14V)
PBIB0042E
PBIB0043E
PBIB0133E
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