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P0442 Nissan Code - EVAP Control System Leak Detected Small Leak

Quick Answer

The P0442 OBD-II diagnostic trouble code indicates that there is a small leak in the EVAP (Evaporative Emission Control) system. Common causes include Loose or damaged gas cap, Cracked or deteriorated EVAP hoses, Faulty EVAP canister. 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 Nissan indicates EVAP Control System Leak Detected Small Leak.
Common causes
Common causes include Loose or damaged gas cap, Cracked or deteriorated EVAP hoses, Faulty EVAP canister.
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 12, 2024
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Code P0442 Nissan Description

The P0442 OBD-II diagnostic trouble code indicates that there is a small leak in the EVAP (Evaporative Emission Control) system. The EVAP system is responsible for capturing and storing fuel vapors to prevent them from escaping into the atmosphere. When a small leak is detected, it means that there is a breach in the system that is allowing fuel vapors to escape.

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

Common Causes of P0442 Nissan

  1. Loose or damaged gas cap.
  2. Cracked or deteriorated EVAP hoses.
  3. Faulty EVAP canister.
  4. Malfunctioning EVAP purge valve.
  5. Wiring or electrical issues in the EVAP system.

Symptoms of P0442 Nissan

  1. Check Engine Light is illuminated on the dashboard.
  2. Strong fuel odor around the vehicle.
  3. Decreased fuel efficiency.
  4. Vehicle fails emissions test.
  5. Hissing or whistling noise coming from the EVAP system.

How to Fix P0442 Nissan

  1. Inspect and tighten or replace the gas cap.
  2. Check and replace any damaged or deteriorated EVAP hoses.
  3. Test and replace the EVAP canister if necessary.
  4. Check and replace the EVAP purge valve if it is malfunctioning.
  5. Clear the trouble code and reset the Check Engine Light.

Cost to Fix P0442 Nissan

The typical repair costs for resolving a P0442 code can range from $100 to $500, depending on the specific cause of the small leak and the parts needed for the repair. This estimate includes the cost of parts and labor. It's important to note that diagnostic time and labor rates at auto repair shops can vary, so it's advisable to check local rates for a more accurate estimate.

What does this mean?

Tech Notes for P0442 Nissan

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



There are factory service bulletins for the P0442 code:



2005-2007 Nissan Pathfinder

2005-2007 Nissan Pathfinder Service Bulletin OBDII Code P0442



2007-2009 Nissan Altima Sedan

2008-2009 Nissan Altima Coupe

2007-2009 Nissan Altima Hybrid

2009 Nissan Maxima

Nissan Factory Service Bulletin OBDII Code P0442











User Submitted Video

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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Information for Specific Nissan Models

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 Nissan Code

No Frequently Asked Questions about P0442 Nissan Code found.

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  • Where is the error code P0442 EVAP control system located on a 2010 Nissan Versa 1.8 motor the EVAP the Vent Control Valve and the Canaster Purge Valve? Is this an easy fix? Thank you!

    Reply to Comment

  • The P0442 means that there is a small leak, it doesn't necessary means that a component has failed. The first thing you should do is check the gas cap. Make sure the gas cap is not damage and is firmly secure, then clear the code. If the code comes back, then you have to have a shop inspect the vehicle for you.

    Reply to Comment