AutoCodes – Nissan – P1402 2006 Nissan Sentra

P1402 2006 Nissan Sentra Code - EGR Function Open

Quick Answer

This system controls flow rate of Exhaust Gas Recirculation (EGR) led from exhaust manifold to intake manifold. Common causes include Faulty EGR temperature sensor, EGR volume control valve harness is open or shorted, EGR volume control valve circuit poor electrical connection. Severity is Moderate - service should be scheduled soon. The vehicle may still be drivable for short trips if it runs normally, but avoid hard driving and repair it soon.

What it means: P1402 2006 Nissan Sentra indicates EGR Function Open.
Common causes: Common causes include Faulty EGR temperature sensor, EGR volume control valve harness is open or shorted, EGR volume control valve circuit poor electrical connection.
Severity: Moderate - service should be scheduled soon.
Can I drive?: The vehicle may still be drivable for short trips if it runs normally, but avoid hard driving and repair it soon.

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Code Popularity 3,196

How popular is this code, among other codes? Low

Repair Importance Level

Moderate (Service soon) (2 / 3)

Repair Difficulty Level

Intermediate (2 / 3)

What is this?

Table of contents Created and updated by William Orellana on Jul 01, 2020

Description
Possible Causes
How To Fix
Tech Notes
Cost to Diagnose
FAQs
Comments
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Code P1402 2006 Nissan Sentra Description

This system controls flow rate of Exhaust Gas Recirculation (EGR) led from exhaust manifold to intake manifold. The opening of the EGR by-pass passage in the EGR volume control valve changes to control the flow rate. A built-in step motor moves the valve in steps corresponding to the Engine Control Module (ECM) output pulses. The opening of the valve varies for optimum engine control. The optimum value stored in the ECM is determined by considering various engine conditions. The EGR volume control valve remains closed under the following conditions.
- Engine stopped
- Engine starting
- Engine idling
- Low engine coolant temperature
- Excessively high engine coolant temperature
- High engine speed
- Wide open throttle
- Low battery voltage

OBDII Code P1402 2006 Nissan Sentra - EGR Function Open - AutoCodes.com — P1402 2006 Nissan Sentra Code - EGR Function Open

What does this mean?

What are the Possible Causes of the DTC P1402 2006 Nissan Sentra?

Faulty EGR temperature sensor
EGR volume control valve harness is open or shorted
EGR volume control valve circuit poor electrical connection
EGR volume control valve leaking or stuck open

How to Fix the DTC P1402 2006 Nissan Sentra?

Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.

What does this mean?

Code Tech Notes

Start by cleaning the EGR valve, if the code persists it may be necessary to replace the EGR Valve.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P1402 2006 Nissan Sentra code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.

Need more information about the P1402 2006 Nissan Sentra code?

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About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about P1402 2006 Nissan Sentra Code

1. What is OBDII code P1402 on a 2006 Nissan Sentra?

- OBDII code P1402 on a 2006 Nissan Sentra relates to the Exhaust Gas Recirculation (EGR) function open.

2. What are the common symptoms of OBDII code P1402 on a 2006 Nissan Sentra?

- Common symptoms of code P1402 include rough idling, engine stalling, decreased fuel efficiency, and potentially a Check Engine Light.

3. What could cause OBDII code P1402 on a 2006 Nissan Sentra?

- The code P1402 on a 2006 Nissan Sentra is often triggered by a faulty EGR valve, a clogged EGR passage, or wiring issues in the EGR system.

4. How can I diagnose OBDII code P1402 on a 2006 Nissan Sentra?

- Diagnosing code P1402 involves checking the EGR valve for proper operation, inspecting the EGR passages for blockages, and testing the EGR system components for electrical continuity.

5. Can I continue driving my 2006 Nissan Sentra with OBDII code P1402?

- It is not recommended to continue driving your vehicle with code P1402 as it can lead to further engine damage and decreased performance.

6. How can I repair OBDII code P1402 on a 2006 Nissan Sentra?

- Repairing code P1402 may involve cleaning or replacing the EGR valve, clearing any blockages in the EGR passages, and ensuring proper electrical connections in the EGR system.

7. Is it possible to reset OBDII code P1402 on a 2006 Nissan Sentra without fixing the underlying issue?

- While you can clear the code temporarily, it is crucial to address the root cause of P1402 to prevent the issue from recurring and potentially causing more significant problems.

8. Are there any maintenance tips to prevent OBDII code P1402 on a 2006 Nissan Sentra?

- Regularly servicing the EGR system, using high-quality fuel, and maintaining proper engine performance can help prevent issues leading to code P1402.

9. Can a DIY enthusiast fix OBDII code P1402 on a 2006 Nissan Sentra?

- Depending on your mechanical skills and tools available, a DIY enthusiast may be able to address code P1402 by following repair guides and diagnostic procedures carefully.

10. How long does it typically take to repair OBDII code P1402 on a 2006 Nissan Sentra?

- The repair time for code P1402 can vary based on the exact cause and extent of the issue. It may take anywhere from a few hours to a day, depending on the complexity of the repair needed.