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: 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 TABLE

TERMINAL NO.	WIRE COLOR	ITEM	CONDITION	DATA (DC Voltage)
2	R/L	A/F sensor 1 heater (bank 1)	[Engine is running] Warm-up condition Idle speed	Courtesy of NISSAN MOTOR CO., U.S.A.
16	G	A/F sensor 1 (bank 1)	[Engine is running] Warm-up condition Idle speed	Approximately 3.1V
35	B/R			Approximately 2.6V
56	L			Approximately 2.3V
75	R/B			Approximately 2.3V
21 22 23	W G R	Fuel injector No. 5 Fuel injector No. 3 Fuel injector No. 1	[Engine is running] Warm-up condition Idle speed NOTE: The pulse cycle changes depending on rpm at idle	Courtesy of NISSAN MOTOR CO., U.S.A.
21 22 23	W G R	Fuel injector No. 5 Fuel injector No. 3 Fuel injector No. 1	[Engine is running] Warm-up condition Engine speed: 2, 000 rpm	Courtesy of NISSAN MOTOR CO., U.S.A.
: Average voltage for pulse signal (Actual pulse signal can be confirmed by oscilloscope.)