P0442 2007 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 2007 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 2007 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 2007 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 2007 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 2007 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 2007 Nissan Sentra code?
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Frequently Asked Questions about P0442 2007 Nissan Sentra Code
1. What are common symptoms of OBDII code P0442 on a 2007 Nissan Sentra?
- Common symptoms include the check engine light coming on, a noticeable fuel odor, and potential issues with passing emissions testing.
2. What are the possible causes of OBDII code P0442 on a 2007 Nissan Sentra?
- The most common causes are a loose or damaged gas cap, a small leak in the evaporative emission control system, a faulty purge control valve, or a cracked or damaged vacuum hose.
3. How serious is OBDII code P0442 on a 2007 Nissan Sentra?
- While this code typically does not cause drivability issues, it is important to address it promptly to ensure proper emissions control and prevent potential damage to the vehicle's components.
4. Can a loose gas cap trigger OBDII code P0442 on a 2007 Nissan Sentra?
- Yes, a loose or improperly sealed gas cap is a common trigger for this code as it can lead to a small leak in the evaporative emission control system.
5. How can I diagnose and repair OBDII code P0442 on a 2007 Nissan Sentra?
- Start by checking the gas cap for tightness and integrity. If the cap is fine, inspect the evaporative emission system components for leaks, damage, or malfunctions. Repair or replace any faulty parts as needed.
6. Is it safe to continue driving with OBDII code P0442 on a 2007 Nissan Sentra?
- It is generally safe to drive the vehicle with this code, but it is recommended to address the issue promptly to prevent potential emissions problems and ensure proper vehicle operation.
7. Can a DIY enthusiast fix OBDII code P0442 on a 2007 Nissan Sentra?
- Yes, depending on the cause, DIY enthusiasts can often fix this code by checking and tightening the gas cap, inspecting hoses for damage, and replacing faulty components like the purge control valve if necessary.
8. Will resetting the check engine light resolve OBDII code P0442 on a 2007 Nissan Sentra?
- Simply resetting the check engine light will not fix the underlying issue causing the code. It is important to diagnose the problem, make necessary repairs, and clear the code properly to resolve the issue.
9. How can I prevent OBDII code P0442 from recurring on my 2007 Nissan Sentra?
- To prevent the code from recurring, make sure the gas cap is always tightly sealed after refueling, regularly inspect the evaporative emission system components for damage, and address any issues promptly.
10. Can extreme weather conditions impact the occurrence of OBDII code P0442 on a 2007 Nissan Sentra?
- Yes, extreme temperature changes or severe weather conditions can sometimes lead to the triggering of this code due to the expansion and contraction of components in the evaporative emission control system.
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