Nissan Note [1015/1872] Dtc p0171 fuel injection system function

Nissan Note [1015/1872] Dtc p0171 fuel injection system function
DTC P0171 FUEL INJECTION SYSTEM FUNCTION
EC-1015
[HR (WITH EURO-OBD)]
C
D
E
F
G
H
I
J
K
L
M
A
EC
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.)
TERMI-
NAL
NO.
WIRE
COLOR
ITEM CONDITION DATA (DC Voltage)
3Y
Heated oxygen sensor 1
heater
[Engine is running]
Warm-up condition
Engine speed: Below 3,600 rpm
Approximately 10V
[Ignition switch: ON]
Engine stopped
[Engine is running]
Engine speed: Above 3,600 rpm
BATTERY VOLTAGE
(11 - 14V)
25
29
30
31
R
O
GR
L
Fuel injector No. 4
Fuel injector No. 3
Fuel injector No. 2
Fuel injector No. 1
[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)
49 BR Heated oxygen sensor 1
[Engine is running]
Warm-up condition
Engine speed: 2,000 rpm
0 - Approximately 1.0V
(Periodically change)
56 R
Sensor ground
(Heated oxygen sensor 1)
[Engine is running]
Idle speed
Approximately 0V
PBIA8148J
PBIB0529E
PBIA4943J

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