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.

2019 Nissan-Datsun Sentra SLFACTORY OEM SERVICE PROCEDURE

DTC Work Support Mode

WARNING: This page is about a different variant/trim than selected.

Test Item

Test mode	Test item	Corresponding DTC No.	Reference
EVAPORATIVE SYSTEM	PURG VOL CN/V P1444	P0443	DTC Logic
EVAPORATIVE SYSTEM	PURG FLOW P0441	P0441	DTC Logic
HO2S2	HO2S2 (B1) P1146	P0138	DTC Logic
	HO2S2 (B1) P1147	P0137	DTC Logic
	HO2S2 (B1) P0139	P0139	DTC Logic
A/F SEN1	A/F SEN1 (B1) P1276	P0130	DTC Logic

Factory Service Tools

Use the Manual With the Right Hardware

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

Disclosure: Verified tool recommendations may earn an affiliate commission at no cost to you.

Shop Manual-Ready Tools Compare Repair Quote 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.