Fuel Injector: Wiring Diagram

2012 Nissan-Datsun Sentra SE-RSECTION Wiring Diagram
Fig 1: Identifying Wiring Diagram With Connector End View (EC-INJECT-01)
G04926248Courtesy of NISSAN NORTH AMERICA, INC.

Specification data are reference values and are measured between each terminal and ground. Pulse signal is measured by CONSULT.

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 NO. WIRE COLOR ITEM CONDITION DATA (DC Voltage)
29
30
31
32
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 - 14 V)(1)
G04894542Courtesy of NISSAN NORTH AMERICA, INC.
[Engine is running] 
  • Warm-up condition 
  • Engine speed: 2, 000 rpm
BATTERY VOLTAGE (11 - 14 V)(1)
G05921439Courtesy of NISSAN NORTH AMERICA, INC.
(1) Average voltage for pulse signal (Actual pulse signal can be confirmed by oscilloscope.)
RENDER: 1.0x

NO RELATED

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • You smell fuel, burning insulation, or see smoke.
  • Brakes feel soft, pull hard to one side, or make grinding noises.
  • The engine overheats, stalls repeatedly, or misfires under load.
  • You are missing required tools, torque specs, or safe lifting equipment.
  • You are not confident in the next step or safety outcome.