P0442 2010 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 2010 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 2010 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 2010 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 2010 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 2010 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 2010 Nissan Altima Sedan Code
1. What are the common symptoms of OBDII code P0442 on a 2010 Nissan Altima Sedan?
- Common symptoms include the illumination of the check engine light, a slight drop in fuel economy, and a gasoline odor near the vehicle.
2. What are the possible causes of the P0442 code on a 2010 Nissan Altima Sedan?
- The code P0442 typically indicates a small leak in the EVAP (Evaporative Emission Control) system. Causes can include a loose gas cap, a damaged EVAP hose, or a faulty EVAP canister.
3. How serious is the OBDII code P0442 on a 2010 Nissan Altima Sedan?
- While P0442 is not a critical issue, it can lead to increased emissions and potentially impact the vehicle's overall performance. It is important to address this code promptly.
4. Can a loose gas cap trigger the P0442 code on a 2010 Nissan Altima Sedan?
- Yes, a loose, damaged, or missing gas cap is one of the most common causes of the P0442 code. Ensure the gas cap is securely tightened and in good condition before further diagnosis.
5. How can I diagnose and repair a small EVAP system leak causing the P0442 code on a 2010 Nissan Altima Sedan?
- Begin by visually inspecting the EVAP system components for any visible damage or leaks. Check the gas cap, EVAP hoses, and canister for issues. A smoke test can help pinpoint the exact location of the leak.
6. Is it safe to drive my 2010 Nissan Altima Sedan with the P0442 code active?
- It is generally safe to drive the vehicle with the P0442 code, but it is recommended to address the issue as soon as possible to prevent potential long-term consequences on emissions and performance.
7. Can the P0442 code on a 2010 Nissan Altima Sedan be triggered by a faulty EVAP purge valve?
- Yes, a malfunctioning EVAP purge valve can contribute to the P0442 code by causing improper pressure within the EVAP system. The purge valve should be tested and replaced if necessary.
8. Will resetting the check engine light resolve the P0442 code temporarily on a 2010 Nissan Altima Sedan?
- Resetting the check engine light may temporarily clear the code, but if the underlying issue causing the P0442 code is not addressed, the code is likely to reappear after driving cycles.
9. How much does it cost to repair the P0442 code related to a small EVAP leak on a 2010 Nissan Altima Sedan?
- The cost of repairing the P0442 code can vary depending on the specific cause of the issue. It may range from a simple gas cap replacement to more extensive repairs involving EVAP system components.
10. Can I use an OBDII scanner to clear the P0442 code on a 2010 Nissan Altima Sedan after making repairs?
- Yes, once the underlying issue triggering the P0442 code has been fixed, you can use an OBDII scanner to clear the code and reset the check engine light on your 2010 Nissan Altima Sedan.
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