P0442 on Your 2022 Dodge Challenger
A P0442 code on your 2022 Dodge Challenger indicates the PCM detected a small leak in the evaporative emission system. After two to three years of service, the cause is usually minor and should be covered under your Stellantis warranty.
EVAP System Overview
The 2022 Challenger uses Stellantis's NVLD (Natural Vacuum Leak Detection) system regardless of engine choice — 3.6L Pentastar V6, 5.7L HEMI, or 6.4L HEMI. The NVLD monitors system integrity via vacuum changes. The purge solenoid controls vapor flow to the intake, and the charcoal canister stores fuel vapors.
Most Likely Causes
- Gas cap seal issue (40%) — After two to three years, minor gasket wear or debris contamination can prevent a full seal.
- EVAP hose connection looseness (25%) — Road vibration and thermal cycling can loosen vapor line fittings.
- NVLD device issue (15%) — Early failure of the leak detection device, though uncommon at this age.
- Charcoal canister damage (10%) — Underbody impacts from road debris.
- Purge solenoid seal (10%) — Early internal seal degradation.
Diagnostic Steps
Check and replace the gas cap if worn. If the code persists, schedule a warranty appointment. The dealer's wiTECH diagnostic system provides NVLD-specific testing that generic scanners cannot perform.
Repair Costs
- Gas cap replacement: $15–$40
- EVAP hose repair: $100–$260
- NVLD replacement: $130–$310
- Charcoal canister: $220–$450
- Purge solenoid: $110–$260
Warranty Coverage
Your 2022 Challenger should be within the 3-year/36,000-mile basic warranty. The 5-year/60,000-mile powertrain warranty and federal 8-year/80,000-mile emissions warranty provide additional coverage. Contact your Dodge dealer for a no-cost warranty repair.