What does code P0442 mean?
A small leak is detected in the EVAP system, allowing fuel vapors to escape.
OBD-II Code
P0442 — Evaporative Emission Control System Leak Detected (Small Leak)
A small leak is detected in the EVAP system, allowing fuel vapors to escape.
Common symptoms
- Mild fuel odor
- steady check engine light
Possible causes
- Loose fuel cap
- cracked hose
- minor EVAP leak
Initial recommendation
Check fuel cap seal and inspect EVAP lines for small leaks.
Safety notice
This information is for guidance only and does not replace a physical vehicle inspection or diagnosis by a qualified mechanic. If the vehicle has severe power loss, smoke, a fuel odor, overheating, brake or steering problems, or any unsafe behavior, avoid driving it and seek professional inspection.
Analyze this code with MecaOBD
Use the app to combine code P0442 with your vehicle's actual symptoms for more complete diagnostic guidance.
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