AutoCodes – Nissan – P0442 2005 Nissan Sentra

P0442 2005 Nissan Sentra Code - EVAP Control System Leak Detected Small Leak

Quick Answer

The Engine Control Module (ECM) tests the Evaporative Emission (EVAP) system for the following conditions: - Large and small leaks - Excess vacuum - Purge flow during non-commanded conditions - Fuel Level and Fuel Pressure sensor faults - EVAP Purge and Vent Valve faults The ECM monitors the Fuel Tank Pressure sensor in order to determine the level of vacuum/pressure in the EVAP system. Common causes include Missing or loose fuel cap, Incorrect fuel filler cap used, Fuel filler cap remains open or fails to close. 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 2005 Nissan Sentra indicates EVAP Control System Leak Detected Small Leak.
Common causes: Common causes include Missing or loose fuel cap, Incorrect fuel filler cap used, Fuel filler cap remains open or fails to close.
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.

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Code Popularity 6,103

How popular is this code, among other codes? Low

Repair Importance Level

Low (Monitor) (1 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Jun 19, 2020

Description
Step-by-Step Diagnostic Guide
Possible Causes
How To Fix
Tech Notes
Cost to Diagnose
FAQs
Comments
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Code P0442 2005 Nissan Sentra Description

The Engine Control Module (ECM) tests the Evaporative Emission (EVAP) system for the following conditions:
- Large and small leaks
- Excess vacuum
- Purge flow during non-commanded conditions
- Fuel Level and Fuel Pressure sensor faults
- EVAP Purge and Vent Valve faults
The ECM monitors the Fuel Tank Pressure sensor in order to determine the level of vacuum/pressure in the EVAP system. The ECM commands both the EVAP Purge Solenoid and the EVAP Vent Valve ON when the conditions are met in order to apply an engine vacuum to the EVAP system. The ECM commands the EVAP Purge Solenoid OFF once the system has reached a predetermined level of vacuum. This test verifies if a vacuum can be achieved in the EVAP system. Failure to develop a vacuum may be caused by a large leak or a restriction.

OBDII Code P0442 2005 Nissan Sentra - EVAP Control System Leak Detected Small Leak - AutoCodes.com — P0442 2005 Nissan Sentra Code - EVAP Control System Leak Detected Small Leak

What does this mean?

What are the Possible Causes of the DTC P0442 2005 Nissan Sentra?

Missing or loose fuel cap
Incorrect fuel filler cap used
Fuel filler cap remains open or fails to close
Foreign matter caught in fuel filler cap
EVAP canister or fuel tank leaks
EVAP system hose leaking
Fuel tank leaking

How to Fix the DTC P0442 2005 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.

What does this mean?

Code Tech Notes

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

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P0442 2005 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.

Need more information about the P0442 2005 Nissan Sentra code?

Need more information on how to fix the P0442 2005 Nissan Sentra code? Get Access to Factory Service Manuals

Need Help with the 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 P0442 2005 Nissan Sentra Code

1. What is the meaning of OBDII code P0442 for a 2005 Nissan Sentra?

The OBDII code P0442 for a 2005 Nissan Sentra indicates a "Evaporative Emission Control System Leak Detected (small leak)."

2. What are the common symptoms of OBDII code P0442 on a 2005 Nissan Sentra?

Common symptoms of OBDII code P0442 on a 2005 Nissan Sentra may include the check engine light coming on, fuel odor near the vehicle, and potential issues with passing emissions testing.

3. What are the possible causes of OBDII code P0442 on a 2005 Nissan Sentra?

Possible causes of OBDII code P0442 on a 2005 Nissan Sentra include a loose or damaged gas cap, a leak in the evaporative emissions system, faulty purge valve, or a cracked or disconnected vacuum hose.

4. How can I diagnose the source of the small leak causing OBDII code P0442 on my 2005 Nissan Sentra?

To diagnose the source of the small leak causing OBDII code P0442 on a 2005 Nissan Sentra, you can visually inspect the gas cap and surrounding components, check for visible cracks or damage in hoses, and perform a smoke test to identify leaks in the evaporative emissions system.

5. Can I continue driving my 2005 Nissan Sentra with OBDII code P0442?

While driving with OBDII code P0442 on a 2005 Nissan Sentra may not immediately impact vehicle performance, it is recommended to address the issue promptly to prevent potential damage to the emissions system and ensure compliance with emissions regulations.

6. How can I repair OBDII code P0442 on my 2005 Nissan Sentra?

To repair OBDII code P0442 on a 2005 Nissan Sentra, you may need to tighten or replace the gas cap, inspect and repair any leaks in the evaporative emissions system, replace a faulty purge valve, or repair/replace damaged vacuum hoses.

7. Will resetting the check engine light clear OBDII code P0442 on my 2005 Nissan Sentra?

Resetting the check engine light may temporarily clear OBDII code P0442 on a 2005 Nissan Sentra, but if the underlying issue causing the code is not addressed, the code is likely to reappear after driving cycles.

8. How long does it take to repair OBDII code P0442 on a 2005 Nissan Sentra?

The time it takes to repair OBDII code P0442 on a 2005 Nissan Sentra can vary depending on the exact cause of the issue. Simple fixes like tightening the gas cap may take a few minutes, while diagnosing and repairing a leak in the emissions system may require more time.

9. Can I use an OBDII scanner to clear OBDII code P0442 on my 2005 Nissan Sentra?

Using an OBDII scanner to clear OBDII code P0442 on a 2005 Nissan Sentra may temporarily turn off the check engine light, but it is crucial to address the root cause of the code to prevent future occurrences and ensure proper vehicle operation.

10. Is OBDII code P0442 a serious issue for a 2005 Nissan Sentra?

While OBDII code P0442 on a 2005 Nissan Sentra may not directly affect the drivability of the vehicle, it is essential to address this code promptly to maintain proper emissions control, prevent potential damage to the vehicle's systems, and ensure compliance with environmental regulations.