Investigating P0446 on Your 2022 Dodge Charger
A P0446 code on your 2022 Dodge Charger signals an EVAP vent control circuit malfunction. The Charger's LX platform uses Stellantis' Natural Vacuum Leak Detection (NVLD) system to monitor EVAP integrity, regardless of whether you have the 3.6L Pentastar V6, 5.7L HEMI, or 6.4L HEMI engine.
Check your warranty status—the basic warranty (3yr/36k) may still be active depending on purchase date and mileage. The powertrain warranty (5yr/60k) and federal emissions warranty (8yr/80k) provide additional coverage.
Clues and Symptoms
- Check engine light with P0446 stored
- Fuel fill issues or slow pump shutoff
- EVAP readiness monitor incomplete
- Possible fuel odor
Top Suspects
- NVLD Switch/Seal Failure (High Likelihood): The NVLD unit's internal switch or seal can fail, causing circuit faults. Replacement costs $150–$280 if not under warranty.
- Purge Solenoid Malfunction (High Likelihood): A sticking purge solenoid disrupts system flow and triggers vent monitoring errors. Replacement runs $120–$230.
- NVLD Wiring or Connector (Medium Likelihood): Underbody exposure causes connector corrosion. Repair costs $80–$180.
- EVAP Hose Deterioration (Medium Likelihood): Rubber hoses in the EVAP circuit develop cracks or loose connections. 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 stored and pending codes. The NVLD system is Stellantis-specific—wiTECH diagnostics at a dealer provide the most accurate NVLD switch and solenoid testing. Check the gas cap seal first, then inspect the NVLD connector under the vehicle for corrosion or damage.
Warranty and Cost
Check if your 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. If covered, the repair is free. Out of pocket, expect $120–$280 for the most common fixes.
Safe to Drive?
Yes. P0446 doesn't affect your Charger's engine performance, HEMI power, transmission, or driving dynamics. Full performance is maintained.