Safety Warning

DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.

SYS.OK|MANUAL.DB● LIVE

HOMESERVICE MANUALSNISSAN-DATSUN2012SENTRA SE-RREPAIR AND DIAGNOSIS (SINGLE PAGE)ENGINE PERFORMANCESYSTEMENGINE CONTROL SYSTEM - COMPONENT TESTING (QR25DE)FUEL INJECTORWIRING DIAGRAM

2012 Nissan-Datsun Sentra SE-R

Fuel Injector: Wiring Diagram

2012 Nissan-Datsun Sentra SE-RSECTION Wiring Diagram

Fig 1: Identifying Wiring Diagram With Connector End View (EC-INJECT-01)

Courtesy 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⁾

Courtesy of NISSAN NORTH AMERICA, INC.

[Engine is running]

Warm-up condition
Engine speed: 2, 000 rpm

BATTERY VOLTAGE (11 - 14 V)⁽¹⁾

Courtesy of NISSAN NORTH AMERICA, INC.

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

RENDER: 1.0x

NO RELATED

Recommended Tools & Savings

Use the Manual With the Right Hardware

Pair factory procedures with proven DIY tools so the instructions are easier to execute.

Affiliate disclosure: We may earn a commission at no extra cost to you.

Shop Manual-Ready Tools Free Quote Check Quote Shield Pro

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.