Investigating P0446 on Your 2022 Dodge Challenger
A P0446 code on your 2022 Dodge Challenger indicates an EVAP vent control circuit malfunction. The Challenger's LC/LA platform uses Stellantis' NVLD (Natural Vacuum Leak Detection) system across all engine options—from the 3.6L Pentastar V6 through the supercharged 6.2L Hellcat.
Check your warranty status. The basic warranty (3yr/36k) may still be active depending on purchase date and mileage. The powertrain warranty (5yr/60k) extends through 2027.
Clues and Symptoms
- Check engine light with P0446
- Fuel fill difficulty at the pump
- EVAP readiness monitor incomplete
- Possible fuel odor
Top Suspects
- NVLD Switch/Seal Failure (High Likelihood): The NVLD unit's internal components degrade. Replacement costs $150–$280 if not warranty-covered.
- Purge Solenoid Malfunction (High Likelihood): Sticking purge solenoid disrupts EVAP flow monitoring. Replacement runs $120–$230.
- NVLD Wiring or Connector (Medium Likelihood): Underbody exposure causes connector issues. Repair costs $80–$180.
- EVAP Hose Crack or Disconnect (Medium Likelihood): Rubber hoses in the system develop issues over time. Repair runs $60–$150.
- Gas Cap Seal (Low Likelihood): Worn seal on a relatively new vehicle. Replacement is $10–$25.
How to Investigate
Scan for all codes. If still under warranty, go straight to a Dodge dealer for wiTECH diagnostics. For DIY, check the gas cap seal first, then inspect the NVLD connector under the vehicle. Proper NVLD commanded testing requires wiTECH.
Warranty and Cost
Check if the basic warranty (3yr/36k) is still active. The powertrain warranty (5yr/60k) covers through 2027, and the federal emissions warranty (8yr/80k) extends through 2030. Under warranty, repairs are free. Out of pocket: $120–$280.
Safe to Drive?
Yes. P0446 doesn't affect your Challenger's engine performance, power output, transmission, or any driving systems. Full muscle car capability is maintained.