Bank 1

Fig 1: EC-FUELB1-01 - 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-III.

CAUTION: Never 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.

TERMINAL AND WIRE COLOR REFERENCE CHART

TERMINAL NO.

WIRE COLOR

ITEM

CONDITION

DATA (DC Voltage)

BR/W

A/F sensor 1 heater (Bank 1)

[Engine is running]

Warm-up condition
Idle speed

(More than 140 seconds after starting engine)

Approximately 2.9 - 8.8 V⁽¹⁾

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

29
32

R
L

Fuel injector No. 4
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 - 14 V)⁽¹⁾

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

[Engine is running]

Warm-up condition
Engine speed: 2, 000 RPM

BATTERY VOLTAGE (11 - 14 V)⁽¹⁾

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

A/F sensor 1 (Bank 1)

[Engine is running]

Warm-up condition
Engine speed: 2, 000 RPM

Approximately 1.8 V Output voltage varies with air fuel ratio.

A/F sensor 1 (Bank 1)

[Ignition switch: ON]

Approximately 2.2 V

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