P0441 Evaporative Emission System Incorrect Purge Flow
What does P0441 mean?
P0441 — Evaporative Emission System Incorrect Purge Flow. This is an OBD-II diagnostic trouble code a scanner retrieves when your vehicle's computer detects evaporative emission system incorrect purge flow. The level of risk depends on how the vehicle is currently running and how long you've been driving with the light on.
Common causes of P0441
- Faulty purge valve stuck open or closed
- Blocked purge line or canister
- Failed vent valve
- Incorrect vacuum to the purge system
How to fix P0441
- Command the purge valve and watch vapor pressure change
- Check the purge line for kinks or blockage
- Smoke-test the system for leaks
- Test the purge and vent valve operation
- Replace the faulty valve and run an EVAP monitor test