What P0442 Means for Your 2021 Kia Soul
The P0442 code on your 2021 Kia Soul 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 2021 Soul is the third generation, powered by a 2.0L four-cylinder engine. Kia's EVAP system uses the PCSV, CCV, and FTPS. After a few years, minor component wear is possible. The Soul's compact platform means simpler EVAP routing.
Probable Causes
- Gas Cap Wear — After a few years, the O-ring can show wear. Check and replace ($10–$20).
- PCSV Issue — The Purge Control Solenoid Valve can begin to wear from engine heat cycling.
- CCV Problem — The Canister Close Valve can be affected by moisture.
- Vapor Line Looseness — Fittings can loosen from vibration.
- FTPS Drift — Minor sensor calibration issue.
Warranty Coverage
- Check the gas cap — Free first step.
- Visit your Kia dealer — Your 2021 Soul 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 $110–$240, CCV $90–$210.