P1402 2003 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 2003 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.
Code P1402 2003 Nissan Sentra 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 2003 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 2003 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.
Code Tech Notes
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the P1402 2003 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.
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Frequently Asked Questions about P1402 2003 Nissan Sentra Code
1. What are the common symptoms of OBDII code P1402 on a 2003 Nissan Sentra?
- Common symptoms include rough idling, engine stalling, decreased fuel efficiency, and the illumination of the Check Engine Light.
2. What does the OBDII code P1402 "EGR Function Open" mean for a 2003 Nissan Sentra?
- The code indicates that there is an issue with the Exhaust Gas Recirculation (EGR) system, specifically that the EGR valve is not functioning properly or is stuck open.
3. What are the possible causes of the P1402 code on a 2003 Nissan Sentra?
- The code may be triggered by a faulty EGR valve, a malfunctioning EGR vacuum solenoid, a clogged EGR passage, or a wiring issue in the EGR system.
4. How can I diagnose the cause of the P1402 code on my 2003 Nissan Sentra?
- You can use an OBDII scanner to retrieve the code and then visually inspect the EGR valve and related components for any signs of damage or blockages. Testing the EGR valve and solenoid with a multimeter can also help pinpoint the issue.
5. What are some repair tips for addressing the P1402 code on a 2003 Nissan Sentra?
- Start by cleaning the EGR valve and passages to see if that resolves the issue. If cleaning does not work, consider replacing the EGR valve or the EGR vacuum solenoid. Ensure all connections are secure and that there are no wiring issues causing the fault code.
6. Can I continue driving my 2003 Nissan Sentra with the P1402 code present?
- It is not recommended to drive the vehicle with the P1402 code active, as it can lead to poor engine performance, reduced fuel efficiency, and potential damage to other engine components over time.
7. How much does it typically cost to repair the P1402 code on a 2003 Nissan Sentra?
- The cost of repairing the P1402 code can vary depending on the exact cause of the issue. Simple fixes like cleaning the EGR valve may be relatively inexpensive, while replacing the EGR valve or solenoid can cost more.
8. Will resetting the Check Engine Light make the P1402 code go away permanently?
- Resetting the Check Engine Light may temporarily turn off the warning indicator, but if the underlying issue causing the P1402 code is not addressed, the code is likely to reappear once the system detects the fault again.
9. Can a DIY enthusiast repair the P1402 code on a 2003 Nissan Sentra?
- Depending on your mechanical skills and tools available, some DIY enthusiasts may be able to address the P1402 code by cleaning or replacing the EGR components themselves. However, if unsure, it's best to consult a professional mechanic for proper diagnosis and repair.
10. How often does the P1402 code occur in 2003 Nissan Sentras?
- The P1402 code related to EGR function open can occur occasionally in 2003 Nissan Sentras, especially as the vehicle ages and the EGR system components wear out or become clogged with carbon deposits. Regular maintenance can help prevent this issue.
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