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P1402 2002 Nissan Sentra Code - EGR Function Open

Quick Answer

The P1402 diagnostic trouble code (DTC) for a 2002 Nissan Sentra indicates an issue with the Exhaust Gas Recirculation (EGR) system. Common causes include Faulty EGR valve, EGR solenoid malfunction, Clogged EGR passage. 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 2002 Nissan Sentra indicates EGR Function Open.
Common causes
Common causes include Faulty EGR valve, EGR solenoid malfunction, Clogged EGR passage.
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.
What is this?
Table of contents Created and updated by William Orellana on Sep 17, 2024
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Code P1402 2002 Nissan Sentra Description

The P1402 diagnostic trouble code (DTC) for a 2002 Nissan Sentra indicates an issue with the Exhaust Gas Recirculation (EGR) system. Specifically, it signifies that there is an open circuit in the EGR function. The EGR system is responsible for recirculating a portion of the exhaust gases back into the engine's intake manifold to reduce emissions and control combustion temperatures. When the EGR function is open, it means that the EGR valve is not functioning properly, leading to potential performance issues and increased emissions.

OBDII Code P1402 2002 Nissan Sentra - EGR Function Open
P1402 2002 Nissan Sentra Code - EGR Function Open

Common Causes of P1402 2002 Nissan Sentra

  1. Faulty EGR valve
  2. EGR solenoid malfunction
  3. Clogged EGR passage
  4. Wiring or connectivity issues in the EGR circuit
  5. Carbon buildup in the EGR system

Symptoms of P1402 2002 Nissan Sentra

  1. Check Engine Light illuminated
  2. Rough idle or stalling
  3. Decreased fuel efficiency
  4. Engine hesitation or lack of power
  5. Increased emissions

How to Fix P1402 2002 Nissan Sentra

  1. Begin by diagnosing the specific cause of the open EGR function, using a scan tool to read the DTC and pinpoint the issue.
  2. Inspect the EGR valve, solenoid, and passages for any signs of damage, clogs, or carbon buildup. Clean or replace components as necessary.
  3. Check the wiring and connections in the EGR circuit for any breaks, shorts, or corrosion. Repair or replace damaged wiring.
  4. Clear the DTC from the vehicle's computer using the scan tool and test drive the vehicle to ensure the issue has been resolved.
  5. If the problem persists, further diagnostic testing may be required to identify any underlying issues with the EGR system.

Cost to Fix P1402 2002 Nissan Sentra

The typical repair costs for addressing an open EGR function on a 2002 Nissan Sentra can vary depending on the specific cause of the issue and the labor rates in your area. Generally, you can expect to pay anywhere from $150 to $500 for parts and labor. Keep in mind that rates at auto repair shops can vary, with hourly labor rates typically ranging from $80 to $150. It's recommended to obtain quotes from local shops to get a more accurate estimate for your particular situation.

What does this mean?

Tech Notes for P1402 2002 Nissan Sentra

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

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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 2002 Nissan Sentra Code

1. What are the common symptoms of OBDII code P1402 in a 2002 Nissan Sentra?

The common symptoms of code P1402 in a 2002 Nissan Sentra may include rough idling, decreased engine performance, and an illuminated check engine light.

2. What does the OBDII code P1402 "EGR Function Open" mean in a 2002 Nissan Sentra?

The code P1402 in a 2002 Nissan Sentra indicates that there is an issue with the Exhaust Gas Recirculation (EGR) system, specifically that the EGR function is open when it should be closed.

3. What are the possible causes of OBDII code P1402 in a 2002 Nissan Sentra?

Possible causes of code P1402 in a 2002 Nissan Sentra include a faulty EGR valve, clogged EGR passages, wiring issues, or a malfunctioning EGR temperature sensor.

4. How can I diagnose the OBDII code P1402 in my 2002 Nissan Sentra?

Diagnosing code P1402 in a 2002 Nissan Sentra typically involves checking the EGR valve for proper functioning, inspecting the EGR passages for blockages, and testing the EGR temperature sensor and related wiring.

5. Can I continue driving my 2002 Nissan Sentra with OBDII code P1402?

It is not recommended to continue driving your 2002 Nissan Sentra with code P1402, as it can lead to decreased fuel efficiency, engine performance issues, and potential damage to the catalytic converter.

6. How can I repair OBDII code P1402 in a 2002 Nissan Sentra?

Repairing code P1402 in a 2002 Nissan Sentra may involve replacing the EGR valve, cleaning out any clogged EGR passages, repairing faulty wiring, or replacing the EGR temperature sensor.

7. Will resetting the check engine light fix OBDII code P1402 in my 2002 Nissan Sentra?

Simply resetting the check engine light will not fix code P1402 in a 2002 Nissan Sentra. It is important to diagnose the underlying issue causing the code and address it appropriately.

8. How much does it cost to repair OBDII code P1402 in a 2002 Nissan Sentra?

The cost to repair code P1402 in a 2002 Nissan Sentra can vary depending on the specific cause of the issue, but it may range from $100 to $500 or more, including parts and labor.

9. Can a DIY enthusiast fix OBDII code P1402 in a 2002 Nissan Sentra?

While some DIY enthusiasts may be able to address simpler issues related to code P1402, it is recommended to consult a professional mechanic for a proper diagnosis and repair to ensure the problem is resolved correctly.

10. How often does OBDII code P1402 occur in a 2002 Nissan Sentra?

Code P1402 "EGR Function Open" in a 2002 Nissan Sentra can occur due to various reasons, but it is not considered a common code compared to other more prevalent issues in the vehicle's diagnostic system.

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