Evaporative Emission Control System leak Detected (small leak)

What is P0442?

P0442 indicates a small leak in your vehicle's evaporative emission control (EVAP) system, which captures fuel vapors to prevent them from escaping into the atmosphere. This is a medium-severity issue that won't typically affect drivability but can cause your check engine light to stay on and may lead to failed emissions tests. Based on real owner data, this code appears frequently in Honda CR-V models and triggers due to minor leaks in hoses, seals, or gas caps.

Common Causes

• ●Loose or faulty gas cap (most common initial check)
• ●Cracked or deteriorated EVAP system hoses
• ●Leaking purge valve or vent solenoid
• ●Faulty fuel tank pressure sensor

Symptoms You May Notice

• ●Check engine light illuminated (primary symptom reported)
• ●No noticeable drivability issues in most cases
• ●Possible faint fuel odor near vehicle

How to Fix It

• ●Replace gas cap ($15-$50, easy DIY for 1% of owners)
• ●Smoke test to locate leak ($100-$200, professional diagnosis)
• ●Replace EVAP purge valve ($150-$400, moderate difficulty)
• ●Repair or replace cracked EVAP hoses ($200-$600, varies by location)
• ●Complete EVAP system diagnosis and repair ($4-$4700, wide range depending on leak source)