Fuel Injector: Wiring Diagram

For PG-POWER references, see SYSTEM WIRING DIAGRAMS (M35) or SYSTEM WIRING DIAGRAMS (M45).

Fig 1: Wiring Diagram - EC-INJECT-01

Courtesy of NISSAN MOTOR CO., U.S.A.

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 damage to the ECM's transistor. Use a ground other than ECM terminals, such as the ground.

ECM TERMINAL INSPECTION CHART

TERMINAL NO.

WIRE COLOR

ITEM

CONDITION

DATA (DC Voltage)

21
22
23
40
41
42
44
63

W
R/Y
R/B
V/R
P/L
R/W
O
G/Y

Fuel injector No. 5
Fuel injector No. 3
Fuel injector No. 1
Fuel injector No. 6
Fuel injector No. 4
Fuel injector No. 2
Fuel injector No. 7
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)⁽¹⁾

[Engine is running]

Warm-up condition
Engine speed: 2,000 rpm

BATTERY VOLTAGE (11 - 14V)⁽¹⁾

⁽¹⁾	Average voltage for pulse signal (Actual pulse signal can be confirmed by oscilloscope.)