What P0442 Means for Your 2022 Kia Carnival
The P0442 code on your 2022 Kia Carnival indicates the engine control module has detected a small leak in the evaporative emission control system. P0442 flags a leak roughly 0.020 inches in diameter.
The 2022 Carnival (Kia's MPV replacement for the Sedona) is powered by a 3.5L V6 engine with an 8-speed automatic. As a family multi-purpose vehicle with a large fuel tank, the Carnival has extensive EVAP vapor line routing. Kia's system uses the PCSV, CCV, and FTPS.
Probable Causes
- Gas Cap Issue — Loose or worn gas cap. Family vehicles see frequent fuel stops. Check first ($10–$20).
- PCSV Problem — The 3.5L V6's heat can begin to stress the Purge Control Solenoid Valve after a couple years.
- CCV Concern — Moisture and debris can affect the Canister Close Valve.
- Vapor Line Looseness — The Carnival's larger size means longer runs with more fittings.
- FTPS Drift — Minor sensor calibration issue.
Warranty Coverage
- Check the gas cap — Free first step.
- Visit your Kia dealer — Your 2022 Carnival is within Kia's 5-year/60,000-mile basic warranty. EVAP components are covered for 8 years or 80,000 miles. All repairs at no cost.
Costs if Out of Warranty
Gas cap $10–$20, PCSV $140–$280, CCV $110–$250.