P1402 2005 Nissan Altima Sedan 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 Altima Sedan 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.
Code P1402 2005 Nissan Altima Sedan Description
- Engine stopped
- Engine starting
- Engine idling
- Low engine coolant temperature
- Excessively high engine coolant temperature
- High engine speed
- Wide open throttle
- Low battery voltage
What are the Possible Causes of the DTC P1402 2005 Nissan Altima Sedan?
- 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 Altima Sedan?
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
There is a factory service bulletin for the 2005 Nissan Altima:
2005 Nissan Altima Factory Service Bulletin OBDII Code P1402
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the P1402 2005 Nissan Altima Sedan 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.
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Frequently Asked Questions about P1402 2005 Nissan Altima Sedan Code
1. What are the common symptoms of OBDII code P1402 on a 2005 Nissan Altima Sedan?
- Common symptoms include rough idling, engine misfires, decreased fuel efficiency, and the illumination of the Check Engine Light.
2. What does the OBDII code P1402 on a 2005 Nissan Altima Sedan indicate?
- The code P1402 indicates an issue with the Exhaust Gas Recirculation (EGR) function being open when it should be closed.
3. What are the potential causes of OBDII code P1402 on a 2005 Nissan Altima Sedan?
- The causes can include a faulty EGR valve, clogged EGR passages, wiring issues, or a malfunctioning EGR position sensor.
4. How can I diagnose the cause of OBDII code P1402 on my 2005 Nissan Altima Sedan?
- A diagnostic scan tool can help pinpoint the exact cause of the code by checking the EGR valve operation, sensor readings, and overall EGR system functionality.
5. Can I continue to drive my 2005 Nissan Altima Sedan with OBDII code P1402?
- It is not recommended to drive with this code present as it can lead to poor engine performance and potential damage if left unresolved for an extended period.
6. How can I repair OBDII code P1402 on my 2005 Nissan Altima Sedan?
- Repair options may include cleaning or replacing the EGR valve, clearing any blockages in the EGR passages, repairing wiring issues, or replacing the EGR position sensor.
7. Is it possible to reset OBDII code P1402 on a 2005 Nissan Altima Sedan without fixing the underlying issue?
- While you can clear the code with a diagnostic scan tool, it is crucial to address the root cause to prevent the code from reoccurring and ensure proper vehicle operation.
8. How much does it typically cost to repair OBDII code P1402 on a 2005 Nissan Altima Sedan?
- The repair cost can vary depending on the specific issue, but it may range from $100 to $500, including parts and labor.
9. Can a DIY enthusiast fix OBDII code P1402 on a 2005 Nissan Altima Sedan?
- Depending on the skill level and tools available, some DIY enthusiasts may be able to address the issue themselves by following repair guides or tutorials specific to the EGR system.
10. Are there any preventative maintenance tips to avoid OBDII code P1402 on a 2005 Nissan Altima Sedan?
- Regularly inspecting and cleaning the EGR system components, using quality fuel, and following the manufacturer's recommended maintenance schedule can help prevent issues leading to code P1402.
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