P0442 2009 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 2009 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 2009 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 2009 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 2009 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 2009 Nissan Altima Sedan:
2009 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 2009 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 2009 Nissan Altima Sedan Code
1. What are the common symptoms of OBDII code P0442 on a 2009 Nissan Altima Sedan?
- Common symptoms include the check engine light illuminating, a slight decrease in fuel efficiency, and potential gasoline odors near the vehicle.
2. What are the possible causes of OBDII code P0442 on a 2009 Nissan Altima Sedan?
- Possible causes include a loose or damaged gas cap, a cracked or damaged EVAP system hose, a faulty purge control valve, or a malfunctioning EVAP canister.
3. How serious is OBDII code P0442 on a 2009 Nissan Altima Sedan?
- While this code may not cause immediate drivability issues, it can lead to increased emissions and may result in a failed emissions test.
4. How can I diagnose OBDII code P0442 on a 2009 Nissan Altima Sedan?
- Diagnosing this code typically involves inspecting the gas cap for proper sealing, checking the EVAP system hoses for leaks, and testing the purge control valve and EVAP canister for functionality.
5. Can I continue to drive my 2009 Nissan Altima Sedan with OBDII code P0442?
- It is generally safe to continue driving the vehicle with this code, but it is recommended to address the issue promptly to prevent potential emission problems.
6. What are some DIY repair tips for OBDII code P0442 on a 2009 Nissan Altima Sedan?
- DIY repair tips include ensuring the gas cap is tightened properly, visually inspecting EVAP system hoses for damage, and checking for loose connections in the EVAP system.
7. How much does it typically cost to repair OBDII code P0442 on a 2009 Nissan Altima Sedan?
- The cost of repair can vary depending on the specific cause of the code, but it may range from $100 to $500, including parts and labor.
8. Can I reset the check engine light after fixing OBDII code P0442 on a 2009 Nissan Altima Sedan?
- Yes, you can reset the check engine light using an OBDII scanner after the repair is completed to clear the stored fault code.
9. What is the EVAP system in a 2009 Nissan Altima Sedan, and how does it work?
- The EVAP (Evaporative Emission Control) system captures and stores fuel vapors from the vehicle's fuel tank to prevent them from escaping into the atmosphere, helping reduce emissions.
10. How frequently does OBDII code P0442 occur in 2009 Nissan Altima Sedans?
- OBDII code P0442 related to the EVAP Control System Leak Detected Small Leak is a relatively common issue in many vehicles, including the 2009 Nissan Altima Sedan.
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