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Engine-Codes – Nissan – P0442 2007 Nissan Sentra

P0442 2007 Nissan Sentra Code - EVAP Control System Leak Detected Small Leak

Quick Answer

The P0442 code on a 2007 Nissan Sentra indicates that the Evaporative Emission Control System has detected a small leak. Common causes include Loose or damaged gas cap, Leak in EVAP system hoses or lines, Faulty EVAP purge valve. Severity is Low - monitor the vehicle and repair when practical. The vehicle can usually be driven if no severe symptoms are present, but symptoms should be checked before extended driving.

What it means
P0442 2007 Nissan Sentra indicates EVAP Control System Leak Detected Small Leak.
Common causes
Common causes include Loose or damaged gas cap, Leak in EVAP system hoses or lines, Faulty EVAP purge valve.
Severity
Low - monitor the vehicle and repair when practical.
Can I drive?
The vehicle can usually be driven if no severe symptoms are present, but symptoms should be checked before extended driving.
What is this?
Table of contents Created and updated by William Orellana on Sep 10, 2024
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Code P0442 2007 Nissan Sentra Description

The P0442 code on a 2007 Nissan Sentra indicates that the Evaporative Emission Control System has detected a small leak. The Evaporative Emission Control System (EVAP) is responsible for capturing and storing fuel vapors before they can escape into the atmosphere. This system helps reduce vehicle emissions and improve overall fuel efficiency. When a small leak is detected, it means that there is an issue with the system's ability to maintain proper pressure, leading to the escape of fuel vapors.

OBDII Code P0442 2007 Nissan Sentra - EVAP Control System Leak Detected Small Leak
P0442 2007 Nissan Sentra Code - EVAP Control System Leak Detected Small Leak

Common Causes of P0442 2007 Nissan Sentra

  1. Loose or damaged gas cap
  2. Leak in EVAP system hoses or lines
  3. Faulty EVAP purge valve
  4. Malfunctioning EVAP canister
  5. Electrical issues with EVAP system components

Symptoms of P0442 2007 Nissan Sentra

  1. Check engine light illuminated
  2. Decreased fuel efficiency
  3. Rough idling or stalling
  4. Strong fuel odor
  5. Failing emissions test

How to Fix P0442 2007 Nissan Sentra

  1. Check the gas cap for proper sealing and tighten or replace if necessary.
  2. Inspect EVAP system hoses and lines for leaks or damage and repair or replace as needed.
  3. Test and replace the EVAP purge valve if it is faulty.
  4. Check the EVAP canister for leaks or damage and replace if necessary.
  5. Clear the code and perform a drive cycle to ensure the repair was successful.

Cost to Fix P0442 2007 Nissan Sentra

The typical repair costs for a P0442 code on a 2007 Nissan Sentra can range from $100 to $400, depending on the specific cause of the issue and the cost of replacement parts. Labor costs can vary based on the shop's hourly rates and the time required to diagnose and repair the problem. It is recommended to consult with a trusted mechanic or repair shop for an accurate estimate based on the specific circumstances.

What does this mean?

Tech Notes for P0442 2007 Nissan Sentra

The fuel tank filler cap and the Purge Volume Control Valve are the more common problems that will trigger the P0442 code on Nissan vehicles.



There is a factory Nissan service bulletin to help diagnose the P0442 code:

Nissan Factory Service Bulletin OBDII Code P0442

When is the Code Detected?

Malfunction is detected when EVAP control system has a leak, EVAP control system does not operate properly.

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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 P0442 2007 Nissan Sentra Code

1. What are common symptoms of OBDII code P0442 on a 2007 Nissan Sentra?

- Common symptoms include the check engine light coming on, a noticeable fuel odor, and potential issues with passing emissions testing.

2. What are the possible causes of OBDII code P0442 on a 2007 Nissan Sentra?

- The most common causes are a loose or damaged gas cap, a small leak in the evaporative emission control system, a faulty purge control valve, or a cracked or damaged vacuum hose.

3. How serious is OBDII code P0442 on a 2007 Nissan Sentra?

- While this code typically does not cause drivability issues, it is important to address it promptly to ensure proper emissions control and prevent potential damage to the vehicle's components.

4. Can a loose gas cap trigger OBDII code P0442 on a 2007 Nissan Sentra?

- Yes, a loose or improperly sealed gas cap is a common trigger for this code as it can lead to a small leak in the evaporative emission control system.

5. How can I diagnose and repair OBDII code P0442 on a 2007 Nissan Sentra?

- Start by checking the gas cap for tightness and integrity. If the cap is fine, inspect the evaporative emission system components for leaks, damage, or malfunctions. Repair or replace any faulty parts as needed.

6. Is it safe to continue driving with OBDII code P0442 on a 2007 Nissan Sentra?

- It is generally safe to drive the vehicle with this code, but it is recommended to address the issue promptly to prevent potential emissions problems and ensure proper vehicle operation.

7. Can a DIY enthusiast fix OBDII code P0442 on a 2007 Nissan Sentra?

- Yes, depending on the cause, DIY enthusiasts can often fix this code by checking and tightening the gas cap, inspecting hoses for damage, and replacing faulty components like the purge control valve if necessary.

8. Will resetting the check engine light resolve OBDII code P0442 on a 2007 Nissan Sentra?

- Simply resetting the check engine light will not fix the underlying issue causing the code. It is important to diagnose the problem, make necessary repairs, and clear the code properly to resolve the issue.

9. How can I prevent OBDII code P0442 from recurring on my 2007 Nissan Sentra?

- To prevent the code from recurring, make sure the gas cap is always tightly sealed after refueling, regularly inspect the evaporative emission system components for damage, and address any issues promptly.

10. Can extreme weather conditions impact the occurrence of OBDII code P0442 on a 2007 Nissan Sentra?

- Yes, extreme temperature changes or severe weather conditions can sometimes lead to the triggering of this code due to the expansion and contraction of components in the evaporative emission control system.

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