P0442 2007 Nissan Altima Sedan 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 2007 Nissan Altima Sedan 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.
Code P0442 2007 Nissan Altima Sedan Description
- 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.
What are the Possible Causes of the DTC P0442 2007 Nissan Altima Sedan?
- 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 2007 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 Nissan service bulletin to help diagnose the P0442 code:
Nissan Factory Service Bulletin OBDII Code P0442
There is a factory Nissan service bulletin for the 2007 Nissan Altima Sedan:
2007 Nissan Altima Sedan Factory Service Bulletin OBDII Code P0442
User Submitted Video
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the P0442 2007 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 P0442 2007 Nissan Altima Sedan Code
1. What are the common symptoms of OBDII code P0442 on a 2007 Nissan Altima Sedan?
The common symptoms of code P0442 include the illumination of the check engine light on the dashboard and possibly a slight decrease in fuel efficiency.
2. What are some potential causes of OBDII code P0442 on a 2007 Nissan Altima Sedan?
Possible causes of P0442 on a 2007 Nissan Altima Sedan include a loose or damaged gas cap, a small leak in the EVAP system, a malfunctioning EVAP purge valve, or a cracked EVAP hose.
3. How serious is OBDII code P0442 on a 2007 Nissan Altima Sedan?
While code P0442 is not an emergency situation, it should not be ignored. Ignoring this code could lead to increased emissions, reduced fuel efficiency, and potential harm to the environment.
4. How can I diagnose the source of a small EVAP system leak triggering code P0442 on a 2007 Nissan Altima Sedan?
To diagnose the source of the small EVAP system leak, you can visually inspect the EVAP system components, check the gas cap for tightness, perform a smoke test to detect leaks, or use a scan tool to monitor EVAP system parameters.
5. Can a loose gas cap trigger OBDII code P0442 on a 2007 Nissan Altima Sedan?
Yes, a loose or improperly sealed gas cap is a common cause of code P0442 on a 2007 Nissan Altima Sedan. Ensure the gas cap is tightened properly and the seal is intact to see if the code clears.
6. What are some repair tips for fixing OBDII code P0442 on a 2007 Nissan Altima Sedan?
Repair tips for P0442 may include tightening or replacing the gas cap, inspecting and repairing any damaged EVAP system components, clearing the code with an OBDII scanner, and retesting to ensure the issue is resolved.
7. Is it safe to continue driving a 2007 Nissan Altima Sedan with OBDII code P0442?
It is generally safe to drive with code P0442, but it is recommended to address the issue promptly to prevent potential negative impacts on fuel economy and emissions. It is always best to have the vehicle inspected and repaired as soon as possible.
8. Can a DIY enthusiast fix OBDII code P0442 on a 2007 Nissan Altima Sedan?
Depending on your level of automotive knowledge and experience, it is possible to address code P0442 as a DIY project. Simple fixes like checking the gas cap or replacing damaged hoses can often be done at home, but more complex issues may require professional assistance.
9. How long does it typically take to repair OBDII code P0442 on a 2007 Nissan Altima Sedan?
The time it takes to repair code P0442 on a 2007 Nissan Altima Sedan can vary depending on the underlying cause. Simple fixes like tightening the gas cap may only take a few minutes, while diagnosing and repairing a small EVAP system leak could take several hours.
10. Can OBDII code P0442 on a 2007 Nissan Altima Sedan clear on its own?
In some cases, code P0442 may clear on its own after several driving cycles if the issue was minor or temporary. However, it is advisable to diagnose and address the root cause of the code to prevent it from recurring in the future.
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