P0442 2008 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 2008 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 2008 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 2008 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 2008 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 2008 Nissan Altima Sedan:
2008 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 2008 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 2008 Nissan Altima Sedan Code
1. What are common symptoms of OBDII code P0442 in a 2008 Nissan Altima Sedan?
- Common symptoms include the check engine light coming on, a slight fuel odor around the vehicle, and potential issues passing emissions tests.
2. What does the code P0442 in a 2008 Nissan Altima Sedan indicate?
- The code P0442 indicates that the EVAP control system has detected a small leak, specifically in the evaporative emission control system.
3. What are some possible causes of OBDII code P0442 in a 2008 Nissan Altima Sedan?
- Possible causes include a loose or damaged gas cap, a cracked or damaged EVAP hose, a faulty EVAP purge valve, or a leak in the fuel tank vapor line.
4. How serious is OBDII code P0442 in a 2008 Nissan Altima Sedan?
- While this code may not cause immediate drivability issues, it is important to address it promptly to prevent potential environmental harm and ensure your vehicle can pass emissions tests.
5. Can I continue driving my 2008 Nissan Altima Sedan with OBDII code P0442?
- It is generally safe to continue driving the vehicle with this code, but it is recommended to have the issue diagnosed and repaired as soon as possible to prevent further complications.
6. How can I diagnose a small EVAP leak triggering code P0442 in a 2008 Nissan Altima Sedan?
- Diagnosing a small EVAP leak usually involves visually inspecting the EVAP system components for signs of damage or leaks, conducting a smoke test, and checking the gas cap for proper sealing.
7. Is it possible to repair OBDII code P0442 in a 2008 Nissan Altima Sedan myself?
- Depending on the cause of the small EVAP leak, some repairs like tightening the gas cap or replacing a damaged hose can be done by DIY enthusiasts. However, more complex repairs may require professional assistance.
8. How much does it typically cost to repair OBDII code P0442 in a 2008 Nissan Altima Sedan?
- The cost of repairing code P0442 can vary depending on the root cause of the issue and whether you choose to do the repairs yourself or take your vehicle to a mechanic. Costs can range from a few dollars for a new gas cap to a few hundred dollars for more extensive repairs.
9. Can resetting the check engine light clear OBDII code P0442 in a 2008 Nissan Altima Sedan?
- Resetting the check engine light may temporarily clear the code, but if the underlying issue causing the small EVAP leak is not addressed, the code is likely to reappear.
10. How long does it take to repair OBDII code P0442 in a 2008 Nissan Altima Sedan?
- The repair time for code P0442 can vary depending on the complexity of the issue and the availability of replacement parts. Simple fixes like tightening the gas cap can be done quickly, while more involved repairs may take longer.
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