P0442 Infiniti Code - EVAP Control System Leak Detected Small Leak
Quick Answer
The P0442 Infiniti code indicates that there is a small leak detected in the EVAP (Evaporative Emission Control) system. Common causes include Loose gas cap, Damaged or deteriorated EVAP hoses, Faulty EVAP canister. 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 Infiniti indicates EVAP Control System Leak Detected Small Leak.
- Common causes
- Common causes include Loose gas cap, Damaged or deteriorated EVAP hoses, Faulty EVAP canister.
- 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.
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Code P0442 Infiniti Description
The P0442 Infiniti code indicates that there is a small leak detected in the EVAP (Evaporative Emission Control) system. The EVAP system is responsible for capturing and storing fuel vapors that would otherwise be released into the atmosphere, helping to reduce vehicle emissions. A small leak in this system can lead to increased emissions, decreased fuel efficiency, and potential issues with the vehicle's overall performance.
Common Causes of P0442 Infiniti
- Loose gas cap
- Damaged or deteriorated EVAP hoses
- Faulty EVAP canister
- Cracked or damaged EVAP system seals
- Issues with the EVAP purge valve
Symptoms of P0442 Infiniti
- Check engine light illuminated on the dashboard
- Strong fuel odor near the vehicle
- Decreased fuel efficiency
- Rough idling or stalling
- Failed emissions test
How to Fix P0442 Infiniti
- Inspect the gas cap and ensure it is properly tightened or replace it if damaged.
- Check all EVAP hoses, canister, and seals for any signs of damage or wear, replacing as needed.
- Test the EVAP purge valve and replace if faulty.
- Clear the diagnostic code and perform a drive cycle to ensure the issue has been resolved.
- If the code persists, conduct a smoke test to identify the exact location of the leak and repair accordingly.
Cost to Fix P0442 Infiniti
The typical repair cost for addressing a P0442 Infiniti code can range from $100 to $500, depending on the specific cause of the leak and the extent of the repairs needed. This estimate includes parts and labor costs, but actual prices may vary based on the location of the repair shop, the make and model of the vehicle, and the type of engine. It is recommended to consult with a qualified mechanic for a more accurate estimate based on the specific circumstances.
Tech Notes for P0442 Infiniti
There is an Infiniti Service Bulletin to help diagnose the P0442 code:
Infiniti Factory Service Bulletin OBDII Code P0442
When is the Code Detected?
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Information for Specific Infiniti Models
- P0442 2003 Infiniti G35 — EVAP Control System Leak Detected Small Leak
- P0442 2004 Infiniti G35 — EVAP Control System Leak Detected Small Leak
- P0442 2005 Infiniti G35 — EVAP Control System Leak Detected Small Leak
- P0442 2006 Infiniti G35 — EVAP Control System Leak Detected Small Leak
Frequently Asked Questions about P0442 Infiniti Code
1. What are common symptoms of an OBDII code P0442 in an Infiniti?
The most common symptoms of a P0442 code in an Infiniti include the check engine light coming on, a noticeable fuel smell near the vehicle, and potential issues with the car's evaporative emissions system.
2. What are the possible causes of an EVAP control system small leak in an Infiniti?
Potential causes of a P0442 code in an Infiniti include a loose gas cap, a cracked or damaged charcoal canister, a faulty purge valve, or leaks in the EVAP system hoses.
3. How serious is a P0442 OBDII code in an Infiniti?
While a P0442 code is not an emergency, it should not be ignored. Ignoring this code could lead to increased emissions, decreased fuel efficiency, and potential damage to other components of the vehicle's emissions system.
4. Can I continue driving my Infiniti with a P0442 code?
It is generally safe to drive your Infiniti with a P0442 code, but it is recommended to have the issue diagnosed and repaired as soon as possible to prevent any potential long-term damage to the vehicle's emissions system.
5. How can I diagnose a small EVAP system leak in my Infiniti?
Diagnosing a small EVAP leak in an Infiniti typically involves inspecting the gas cap for tightness, visually checking the EVAP system components for damage, and using a smoke machine to detect leaks in the system.
6. Will a P0442 code reset itself in an Infiniti?
A P0442 code may reset itself if the underlying issue is resolved, such as tightening the gas cap. However, it is recommended to have the code properly diagnosed and repaired to prevent it from recurring.
7. How much does it cost to repair a P0442 code in an Infiniti?
The cost of repairing a P0442 code in an Infiniti can vary depending on the specific cause of the issue. Repairs may range from simply tightening the gas cap to replacing components like the charcoal canister or purge valve.
8. Can I clear a P0442 code in my Infiniti with an OBDII scanner?
Yes, you can clear a P0442 code in your Infiniti using an OBDII scanner. However, it is important to address the underlying issue causing the code to prevent it from reoccurring.
9. Are there any DIY repair tips for fixing a P0442 code in an Infiniti?
Some DIY repair tips for a P0442 code in an Infiniti include checking and tightening the gas cap, visually inspecting the EVAP system components for damage, and ensuring all hoses are properly connected.
10. How long does it take to repair a P0442 code in an Infiniti?
The time it takes to repair a P0442 code in an Infiniti can vary based on the specific cause of the issue and the extent of the repairs needed. Simple fixes like tightening the gas cap may only take a few minutes, while more complex repairs could take longer.
Discuss the causes and fixes for P0442 Infiniti OBDII Code
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Replaced crankshaft position sensor on 2004 Infiniti G35 car still long starting won't turn over
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Also code is PO335 and shows when I read on O2 sensor...EVAP...Misfire etc.,...
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P0442 code related components should not cause a lon starting problem. Have you check the fuel pressure? Unfortunately there are many things that could cause that problem, low fuel pressure, low battery voltage, bad starter, bad camshaft position sensor. I suggest starting with the fuel pressure.
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