P0441
Evaporative Emission System Incorrect Purge Flow
The actual purge flow does not match the commanded value. Usually a purge valve stuck closed (no flow) or stuck open (too much flow at idle). Distinct from a leak code.
- Check engine light: Yes
- Emissions related: Yes
- Repair difficulty: easy
Symptoms
- Check engine light on
- Possible smell of fuel near tank or engine bay
- Failed emissions inspection
- Loose-cap warning may appear
Common causes
Ordered by how often each turns out to be the cause.
- Purge valve stuck open or closedCommon
- Purge hose kinked or restrictedPossible
Parts involved
- EVAP Purge Valve
- EVAP Canister
- EVAP Hose
P0441 is a generic OBD-II code defined by SAE J2012. Exact wording and diagnostic procedure vary by manufacturer and model. Code definitions are drawn from the public-domain OBDex dataset; the workshop notes are our own.