Emissions · Severity: Low
P0442 — Evaporative Emission System Leak Detected (Small Leak)
The EVAP system has a small leak (around 1 mm).
Common symptoms
- Engine light
- Occasional fuel smell
Likely causes
- Loose or worn fuel cap
- Cracked EVAP hoses
- Faulty purge or vent valve
- Leaking charcoal canister
First test to run
Inspect the fuel cap seal, then smoke-test the EVAP system through the service port.
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