AutoCodes – Nissan – P1402 2005 Nissan Maxima

P1402 2005 Nissan Maxima 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 2005 Nissan Maxima 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 6,209
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Jul 01, 2020
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Code P1402 2005 Nissan Maxima 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 2005 Nissan Maxima - EGR Function Open - AutoCodes.com
P1402 2005 Nissan Maxima Code - EGR Function Open

What are the Possible Causes of the DTC P1402 2005 Nissan Maxima?

  • 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 2005 Nissan Maxima?

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.

Code Tech Notes

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P1402 2005 Nissan Maxima 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 2005 Nissan Maxima 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 2005 Nissan Maxima Code

1. What does OBDII code P1402 mean on a 2005 Nissan Maxima?

- The code P1402 indicates an issue with the EGR (Exhaust Gas Recirculation) function being open on the vehicle.

2. What are the common symptoms of OBDII code P1402 on a 2005 Nissan Maxima?

- Common symptoms include rough idling, engine hesitation, decreased fuel efficiency, and possibly the illumination of the Check Engine Light.

3. What are the possible causes of OBDII code P1402 on a 2005 Nissan Maxima?

- The causes can 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 on my 2005 Nissan Maxima?

- Diagnosing this code may involve checking the EGR valve for proper operation, inspecting the EGR passages for blockages, and testing the EGR temperature sensor.

5. Can I still drive my 2005 Nissan Maxima with the OBDII code P1402 present?

- It is not recommended to drive the vehicle with this code active, as it can lead to poor engine performance and potential damage over time.

6. How can I repair OBDII code P1402 on my 2005 Nissan Maxima?

- Repair options may include cleaning or replacing the EGR valve, clearing any blockages in the EGR passages, and ensuring proper wiring connections.

7. Are there any DIY tips for fixing OBDII code P1402 on a 2005 Nissan Maxima?

- DIY enthusiasts can try cleaning the EGR valve and passages first, as this may resolve the issue without needing to replace any parts.

8. Will resetting the OBDII code P1402 on my 2005 Nissan Maxima make it go away?

- Resetting the code may temporarily turn off the Check Engine Light, but if the underlying issue is not fixed, the code is likely to return.

9. How much does it typically cost to repair OBDII code P1402 on a 2005 Nissan Maxima?

- The cost of repair can vary depending on the specific problem, but it may range from $100 to $500, including parts and labor.

10. Can a mechanic easily fix OBDII code P1402 on a 2005 Nissan Maxima?

- Yes, a qualified mechanic should be able to diagnose and repair the EGR system to resolve the P1402 code on a 2005 Nissan Maxima.

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