P0442 2011 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 2011 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.
Code P0442 2011 Nissan Sentra 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 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 2011 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.
Code Tech Notes
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 2011 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 2011 Nissan Sentra code?
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Frequently Asked Questions about P0442 2011 Nissan Sentra Code
1. What does OBDII code P0442 on a 2011 Nissan Sentra mean?
- OBDII code P0442 indicates that the EVAP control system has detected a small leak.
2. What are the common symptoms of a P0442 code in a 2011 Nissan Sentra?
- Common symptoms include the check engine light coming on, a slight fuel odor, and potential issues during emissions testing.
3. What are the possible causes of a P0442 code in a 2011 Nissan Sentra?
- Possible causes include a loose or damaged gas cap, a small leak in the EVAP system hoses, a faulty purge valve, or a cracked charcoal canister.
4. How serious is a P0442 code on a 2011 Nissan Sentra?
- While a small EVAP leak might not affect the immediate drivability of the vehicle, it can lead to increased emissions and potential long-term issues if left unresolved.
5. Can I continue driving my 2011 Nissan Sentra with a P0442 code?
- It is generally safe to drive the vehicle with a P0442 code, but it is recommended to have it diagnosed and repaired to prevent potential emission problems.
6. How can I diagnose a P0442 code on my 2011 Nissan Sentra?
- Diagnosing a P0442 code usually involves checking the gas cap for tightness, inspecting the EVAP system components for leaks, and using a smoke machine to pinpoint the source of the leak.
7. How do I repair a P0442 code on a 2011 Nissan Sentra?
- Repairing a P0442 code may involve tightening or replacing the gas cap, repairing or replacing damaged hoses, replacing the purge valve or charcoal canister, and clearing the code with a diagnostic tool.
8. Can a P0442 code be triggered by other issues besides a small leak?
- Yes, a P0442 code can also be triggered by a loose gas cap, a malfunctioning purge valve, or a faulty charcoal canister in addition to a small leak in the EVAP system.
9. How much does it typically cost to repair a P0442 code on a 2011 Nissan Sentra?
- The cost of repairing a P0442 code can vary depending on the specific cause of the issue, but it may range from $100 to $500, including parts and labor.
10. Will resetting the check engine light make the P0442 code go away permanently?
- Simply resetting the check engine light will not fix the underlying issue causing the P0442 code. It is essential to diagnose and repair the problem to prevent the code from reoccurring.
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