Engine-CodesNissan – P1442 Nissan

P1442 Nissan Code - Evaporative Emission Control System Leak Detected

Quick Answer

The P1442 Nissan code indicates that the Evaporative Emission Control System has detected a leak. Common causes include Loose or damaged gas cap, Cracked or disconnected hoses in the evaporative emission system, Faulty purge valve. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

What it means
P1442 Nissan indicates Evaporative Emission Control System Leak Detected.
Common causes
Common causes include Loose or damaged gas cap, Cracked or disconnected hoses in the evaporative emission system, Faulty purge valve.
Severity
High - diagnose this code as soon as possible.
Can I drive?
Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
Table of contents Created and updated by William Orellana on Aug 19, 2024
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Code P1442 Nissan Description

The P1442 Nissan code indicates that the Evaporative Emission Control System has detected a leak. This system is responsible for capturing and storing fuel vapors from the fuel tank to prevent them from escaping into the atmosphere. When a leak is detected, it can lead to increased emissions, reduced fuel efficiency, and potential environmental harm. The leak can be caused by a variety of factors, such as a loose gas cap, damaged hoses, or a faulty purge valve. If left unresolved, the issue can worsen over time and may eventually lead to more severe engine problems.

OBDII Code P1442 Nissan - Evaporative Emission Control System Leak Detected
P1442 Nissan Code - Evaporative Emission Control System Leak Detected

Common Causes of P1442 Nissan

  1. Loose or damaged gas cap
  2. Cracked or disconnected hoses in the evaporative emission system
  3. Faulty purge valve
  4. Leaking charcoal canister
  5. Defective fuel tank pressure sensor

Symptoms of P1442 Nissan

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

How to Fix P1442 Nissan

  1. Inspect the gas cap and tighten or replace if necessary
  2. Check all hoses in the evaporative emission system for cracks or disconnections and repair or replace as needed
  3. Test and, if necessary, replace the purge valve
  4. Inspect the charcoal canister for leaks and replace if damaged
  5. Verify the fuel tank pressure sensor's functionality and replace if faulty

Cost to Fix P1442 Nissan

The typical repair costs for addressing a P1442 Nissan code can vary depending on the specific cause of the issue. Generally, the cost can range from $100 to $500 for parts and labor. However, it's important to note that diagnostic time and labor rates at auto repair shops can fluctuate based on various factors. It's recommended to contact local shops for a more accurate estimate.

When is the Code Detected?

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

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Information for Specific Nissan Models

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.

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