Fuel Injector: Wiring Diagram

For wiring diagram abbreviations, see WIRING DIAGRAM ABBREVIATIONS IDENTIFICATION TABLE .

For PG-POWER, refer to SYSTEM WIRING DIAGRAMS .

Fig 1: EC-INJECT-01 - Wiring Diagram

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 INSPECTION CHART

TERMINAL NO.

WIRE COLOR

ITEM

CONDITION

DATA (DC Voltage)

22
23
41
42

R/Y
R/B
R/L
R/W

Fuel injector No. 3
Fuel injector No. 1
Fuel injector No. 4
Fuel injector No. 2

[Engine is running]

Warm-up condition
Idle speed
NOTE: The pulse cycle changes depending on rpm at idle.

BATTERY VOLTAGE (11 - 14V)*

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

[Engine is running]

Warm-up condition
Engine speed is 2, 000 rpm

BATTERY VOLTAGE (11 - 14V)⁽¹⁾

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

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

Warm-up condition
Engine speed is 2, 000 rpm