Investigating P0442 on Your 2022 Hyundai Tucson
A P0442 code on your 2022 Hyundai Tucson means the engine control module has found a small leak in the evaporative emission control system. This system captures fuel vapors and recycles them through the engine. P0442 indicates a leak approximately 0.020 inches in diameter.
The 2022 Tucson is the first year of its redesigned generation on the N3 platform, available with a 2.5L four-cylinder, 1.6T hybrid, or 1.6T PHEV powertrain. Hyundai's EVAP system uses the PCSV, CCV, and FTPS. As a first-year redesign, some EVAP codes may relate to software calibration.
Probable Causes
- Gas Cap Seal Issue — A loose or worn gas cap is the most common cause. Check and replace if needed ($10–$20).
- PCSV (Purge Control Solenoid Valve) Problem — Engine heat can begin to stress the PCSV even after a couple years. On first-year models, manufacturing variations may also play a role.
- Software Calibration Issue — As the first year of the N3 platform, EVAP monitoring calibrations may need refinement through software updates.
- CCV (Canister Close Valve) Concern — The CCV may be affected by moisture or debris exposure.
- FTPS Reading Issue — The Fuel Tank Pressure Sensor calibration may need adjustment.
Warranty Coverage
- Check the gas cap first — Free and may resolve the code.
- Visit your Hyundai dealer — Your 2022 Tucson is within Hyundai's 5-year/60,000-mile basic warranty. EVAP components are covered for 8 years or 80,000 miles. All repairs should be at no cost.
- Mention hybrid/PHEV status — If applicable, as diagnostic procedures differ.
Costs if Out of Warranty
Gas cap $10–$20, PCSV $130–$270, CCV $100–$240, FTPS $90–$200.