P0442 2011 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 2011 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 2011 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 2011 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 2011 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
User Submitted Video
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the P0442 2011 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 2011 Nissan Altima Sedan Code
1. What are the common symptoms of OBDII code P0442 in a 2011 Nissan Altima Sedan?
The common symptoms of code P0442 in a 2011 Nissan Altima Sedan may include the check engine light coming on, a slight decrease in fuel efficiency, and the smell of gasoline around the vehicle.
2. What are the possible causes of OBDII code P0442 in a 2011 Nissan Altima Sedan?
Possible causes of code P0442 in a 2011 Nissan Altima Sedan include a loose or damaged gas cap, a small leak in the evaporative emissions system, a faulty purge valve, or issues with hoses or connectors.
3. How serious is OBDII code P0442 in a 2011 Nissan Altima Sedan?
While code P0442 is not typically an immediate threat to the vehicle's drivability, it is still important to address it promptly to prevent potential issues with emissions and fuel efficiency.
4. How can I diagnose the cause of OBDII code P0442 in my 2011 Nissan Altima Sedan?
Diagnosing the cause of code P0442 may involve checking the gas cap for tightness, inspecting the EVAP system components for damage or leaks, and using a smoke machine to pinpoint the source of the leak.
5. Can I repair OBDII code P0442 in my 2011 Nissan Altima Sedan myself?
Depending on the cause of the code, some repairs for P0442, such as tightening or replacing the gas cap, can be done by the vehicle owner. However, more complex issues may require professional diagnosis and repair.
6. Will driving with OBDII code P0442 in my 2011 Nissan Altima Sedan cause further damage?
Continuing to drive with code P0442 in your 2011 Nissan Altima Sedan may not cause immediate damage, but it can lead to increased emissions and reduced fuel efficiency over time.
7. How much does it typically cost to repair OBDII code P0442 in a 2011 Nissan Altima Sedan?
The cost to repair code P0442 in a 2011 Nissan Altima Sedan can vary depending on the specific cause of the issue, but it may range from around $100 for a simple fix like a gas cap replacement to several hundred dollars for more involved repairs.
8. Can a loose gas cap trigger OBDII code P0442 in a 2011 Nissan Altima Sedan?
Yes, a loose or improperly sealed gas cap is one of the most common triggers for code P0442 in a 2011 Nissan Altima Sedan, as it can lead to a small leak in the evaporative emissions system.
9. How long does it typically take to repair OBDII code P0442 in a 2011 Nissan Altima Sedan?
The time needed to repair code P0442 in a 2011 Nissan Altima Sedan will depend on the specific cause of the issue and the complexity of the repair. Simple fixes like tightening a gas cap can be done quickly, while more involved repairs may take several hours.
10. Is it safe to continue driving my 2011 Nissan Altima Sedan with OBDII code P0442 unresolved?
While driving with code P0442 may not immediately harm your vehicle, it is best to address the issue promptly to maintain proper emissions control and fuel efficiency in your 2011 Nissan Altima Sedan.
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