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P0442 2005 Infiniti G35 Code - EVAP Control System Leak Detected Small Leak

Quick Answer

The P0442 code on a 2005 Infiniti G35 indicates that the EVAP (Evaporative Emission Control) system has detected a small leak. Common causes include Loose or damaged gas cap, Cracked or disconnected EVAP system hoses, Faulty purge valve. 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 2005 Infiniti G35 indicates EVAP Control System Leak Detected Small Leak.
Common causes
Common causes include Loose or damaged gas cap, Cracked or disconnected EVAP system hoses, Faulty purge valve.
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.
What is this?
Table of contents Created and updated by William Orellana on Sep 15, 2024
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Code P0442 2005 Infiniti G35 Description

The P0442 code on a 2005 Infiniti G35 indicates that the EVAP (Evaporative Emission Control) system has detected a small leak. The EVAP system is responsible for capturing and storing fuel vapors to prevent them from escaping into the atmosphere. When a small leak is detected, it means that there is an issue with the system's ability to maintain pressure, which can lead to increased emissions and decreased fuel efficiency.

OBDII Code P0442 2005 Infiniti G35 - EVAP Control System Leak Detected Small Leak
P0442 2005 Infiniti G35 Code - EVAP Control System Leak Detected Small Leak

Common Causes of P0442 2005 Infiniti G35

  1. Loose or damaged gas cap
  2. Cracked or disconnected EVAP system hoses
  3. Faulty purge valve
  4. Cracked charcoal canister
  5. Leaking fuel tank

Symptoms of P0442 2005 Infiniti G35

  1. Check engine light illuminated on the dashboard
  2. Decreased fuel efficiency
  3. Strong fuel odor near the vehicle
  4. Hissing or whistling noise coming from the fuel tank area
  5. Difficulty starting the engine

How to Fix P0442 2005 Infiniti G35

  1. Inspect the gas cap for any signs of damage or wear. Replace if necessary.
  2. Check all EVAP system hoses for cracks, leaks, or disconnections. Repair or replace as needed.
  3. Test the purge valve for proper operation. Replace if faulty.
  4. Inspect the charcoal canister for cracks or damage. Replace if necessary.
  5. Perform a smoke test to pinpoint the exact location of the leak and repair accordingly.

Cost to Fix P0442 2005 Infiniti G35

The typical repair costs for addressing a P0442 code on a 2005 Infiniti G35 can range from $100 to $500, depending on the specific cause of the issue and the cost of parts and labor. It's important to note that diagnosis time and labor rates at auto repair shops can vary, so it's advisable to check local rates for a more accurate estimate. Additionally, factors such as location, vehicle make and model, and engine type can also influence the overall repair costs.

What does this mean?

Tech Notes for P0442 2005 Infiniti G35

The fuel tank filler cap and the Purge Volume Control Valve are the more common problems that will trigger the P0442 code on Infiniti vehicles.



There is an Infiniti Service Bulletin to help diagnose the P0442 code:

Infiniti Factory Service Bulletin OBDII Code P0442

When is the Code Detected?

Malfunction is detected when EVAP control system has a leak, EVAP control system does not operate properly.

Need more information about the P0442 2005 Infiniti G35 code?

Need more information on how to fix the P0442 2005 Infiniti G35 code? Get Access to Factory Service Manuals

Need Help with the Code?

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About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about P0442 2005 Infiniti G35 Code

1. What are the common symptoms of OBDII code P0442 in a 2005 Infiniti G35?

The common symptoms of P0442 in a 2005 Infiniti G35 include the check engine light coming on, a gas cap warning light, and a noticeable fuel odor.

2. What are the possible causes of OBDII code P0442 in a 2005 Infiniti G35?

Possible causes of P0442 in a 2005 Infiniti G35 include a loose or damaged gas cap, a cracked or damaged EVAP hose, a faulty purge control valve, or a small leak in the EVAP system.

3. How serious is OBDII code P0442 in a 2005 Infiniti G35?

While P0442 is not typically a serious issue that affects the drivability of the vehicle, it can lead to increased emissions and decreased fuel efficiency if left unresolved.

4. How can I diagnose the cause of OBDII code P0442 in my 2005 Infiniti G35?

Diagnosing P0442 may involve checking the gas cap for proper sealing, inspecting EVAP system hoses for cracks or damage, testing the purge control valve, and using a smoke machine to pinpoint the source of the leak.

5. Can I continue driving my 2005 Infiniti G35 with OBDII code P0442?

While you can continue driving your vehicle with P0442, it is recommended to address the issue promptly to prevent any potential negative effects on emissions and fuel efficiency.

6. How can I repair OBDII code P0442 in my 2005 Infiniti G35?

Repairing P0442 may involve tightening or replacing the gas cap, repairing or replacing damaged EVAP system hoses, replacing a faulty purge control valve, or sealing the small leak in the EVAP system.

7. Will resetting the check engine light resolve OBDII code P0442 in my 2005 Infiniti G35?

Simply resetting the check engine light may temporarily clear the code, but the underlying issue causing P0442 will need to be diagnosed and repaired to prevent the code from reoccurring.

8. How long does it typically take to repair OBDII code P0442 in a 2005 Infiniti G35?

The time to repair P0442 can vary depending on the exact cause of the code, but it usually takes anywhere from 30 minutes to a few hours to diagnose and fix the issue.

9. Can a DIY enthusiast repair OBDII code P0442 in a 2005 Infiniti G35?

Depending on the cause of P0442, some DIY enthusiasts may be able to repair the issue themselves by following repair guides and using basic tools. However, more complex issues may require professional assistance.

10. How much does it cost to repair OBDII code P0442 in a 2005 Infiniti G35?

The cost of repairing P0442 in a 2005 Infiniti G35 can vary based on the specific cause of the code and whether you perform the repairs yourself or take your vehicle to a professional mechanic. Costs may range from a few dollars for a new gas cap to a few hundred dollars for more extensive repairs.

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