P0442 2007 Nissan Maxima 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 2007 Nissan Maxima 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 2007 Nissan Maxima 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 2007 Nissan Maxima?
- 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 2007 Nissan Maxima?
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 2007 Nissan Maxima 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 2007 Nissan Maxima code?
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Frequently Asked Questions about P0442 2007 Nissan Maxima Code
1. What does OBDII code P0442 on a 2007 Nissan Maxima mean?
- It indicates that the EVAP control system has detected a small leak.
2. What are the common symptoms of a P0442 code in a 2007 Nissan Maxima?
- The most common symptom is the illumination of the check engine light on the dashboard.
3. What are some possible causes of a P0442 code on a 2007 Nissan Maxima?
- The code can be triggered by a loose or damaged gas cap, a cracked or damaged EVAP hose, or a malfunctioning EVAP purge valve.
4. How serious is a P0442 code on a 2007 Nissan Maxima?
- While the code itself may not cause immediate drivability issues, it can lead to increased emissions and decreased fuel efficiency if left unresolved.
5. How can I diagnose a P0442 trouble code on my 2007 Nissan Maxima?
- Diagnosing the code typically involves checking the gas cap for proper sealing, inspecting the EVAP system hoses for damage, and testing the EVAP purge valve for proper functioning.
6. Can I continue driving my 2007 Nissan Maxima with a P0442 code?
- It is generally safe to drive the vehicle with a P0442 code, but it is recommended to address the issue promptly to prevent any potential negative impacts on emissions and fuel economy.
7. What are some DIY repair tips for fixing a P0442 code on a 2007 Nissan Maxima?
- Start by checking and tightening the gas cap. If the issue persists, inspect the EVAP system hoses for leaks or damage. Replace any faulty components as needed.
8. How much does it typically cost to repair a P0442 code on a 2007 Nissan Maxima?
- The cost of repair can vary depending on the root cause of the issue. Simple fixes like tightening the gas cap may be inexpensive, while replacing components like the EVAP purge valve can be more costly.
9. Can a P0442 code on a 2007 Nissan Maxima cause the vehicle to fail an emissions test?
- Yes, if the issue is not addressed and the check engine light remains illuminated, it may cause the vehicle to fail an emissions test due to increased emissions.
10. How long does it take to repair a P0442 code on a 2007 Nissan Maxima?
- The repair time can vary depending on the specific cause of the code and the complexity of the repair needed. Simple fixes like tightening the gas cap can be done quickly, while more involved repairs may take longer.
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