P0442 2006 Nissan Pathfinder 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 2006 Nissan Pathfinder 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 2006 Nissan Pathfinder 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 2006 Nissan Pathfinder?
- 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 2006 Nissan Pathfinder?
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 service bulletin for the 2006 Nissan Pathfinder:
2005-2007 Nissan Pathfinder Service Bulletin OBDII Code P0442
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the P0442 2006 Nissan Pathfinder 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 2006 Nissan Pathfinder Code
1. What does OBDII code P0442 mean on a 2006 Nissan Pathfinder?
The code P0442 indicates that the EVAP control system has detected a small leak.
2. What are some common symptoms of a P0442 code on a 2006 Nissan Pathfinder?
Common symptoms include the check engine light coming on, a noticeable fuel smell, and potentially poor fuel efficiency.
3. What are some possible causes of a P0442 code on a 2006 Nissan Pathfinder?
Potential causes include a loose or damaged gas cap, a cracked or damaged EVAP hose, a faulty EVAP canister, or a malfunctioning purge valve.
4. How serious is a P0442 code on a 2006 Nissan Pathfinder?
While a P0442 code is typically not an emergency, it should be addressed in a timely manner to prevent potential issues with the vehicle's emissions system.
5. Can I drive my 2006 Nissan Pathfinder with a P0442 code?
It is generally safe to drive the vehicle with a P0442 code, but it is recommended to have the issue diagnosed and repaired as soon as possible to ensure proper emissions control.
6. How can I diagnose a P0442 code on my 2006 Nissan Pathfinder?
Diagnosing a P0442 code typically involves checking the gas cap for tightness, inspecting EVAP system components for damage or leaks, and using a scan tool to monitor the system.
7. How can I repair a P0442 code on my 2006 Nissan Pathfinder?
Common repair steps may include tightening or replacing the gas cap, repairing or replacing damaged EVAP hoses, replacing the EVAP canister, or addressing issues with the purge valve.
8. Can a P0442 code on a 2006 Nissan Pathfinder cause other problems if left unresolved?
If left unresolved, a P0442 code may lead to increased emissions, potential problems passing emissions tests, and could eventually trigger additional warning lights or codes.
9. Will resetting the check engine light clear a P0442 code on a 2006 Nissan Pathfinder?
Resetting the check engine light may temporarily clear the code, but if the underlying issue causing the P0442 code is not addressed, the light is likely to come back on.
10. How much does it typically cost to repair a P0442 code on a 2006 Nissan Pathfinder?
The cost of repairing a P0442 code can vary depending on the specific cause of the issue and the labor rates in your area, but it may range from around $100 to $500 or more.
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