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P0441 fault code: what it means

P0441: Incorrect purge flow in the EVAP system; vapour is not being drawn into the engine properly.

Engine and gearbox (powertrain) · Minor

Usual causes, most likely first

  1. purge valve stuck closed or open
  2. cracked or disconnected purge line
  3. blocked charcoal canister
  4. vent valve fault

P0441 by make

Audi

EVAP system not purging fuel vapour as expected. Emissions fault, not engine damage; the N80 purge valve is the usual cause.

Usual causes: stuck or clogged purge valve (N80); charcoal canister breaking down; cracked or loose EVAP hoses; purge lines connected wrong

Hyundai

EVAP incorrect purge flow. Hard starting after refuelling is a typical sign.

Usual causes: faulty canister purge control solenoid valve; split or disconnected EVAP hose; blocked charcoal canister

Kia

EVAP incorrect purge flow. Hard starting after refuelling is a typical sign.

Usual causes: purge control solenoid valve sticking open; EVAP hose leak; blocked charcoal canister

Lexus

EVAP purge flow incorrect: the ECM opened the purge VSV but did not see the expected vapour flow.

Usual causes: purge VSV stuck closed or open; cracked or disconnected purge hose; saturated charcoal canister

Mercedes-Benz

EVAP purge flow fault.

Usual causes: faulty purge valve; damaged charcoal canister; loose fuel cap

Mitsubishi

Evap system purge flow not as expected.

Usual causes: faulty purge control solenoid; blocked or split purge hose; faulty charcoal canister

Skoda

EVAP system not purging fuel vapour as expected. Emissions fault, not engine damage; the N80 purge valve is the usual cause.

Usual causes: stuck or clogged purge valve (N80); charcoal canister breaking down; cracked or loose EVAP hoses; purge lines connected wrong

Subaru

Evap system purge flow not as expected (functional fault, not electrical).

Usual causes: faulty purge control solenoid valve; blocked or split purge hose; faulty charcoal canister

Toyota

EVAP purge flow incorrect: the ECM opened the purge VSV but did not see the expected vapour flow.

Usual causes: purge VSV stuck closed or open (common on 2AZ Corolla/Camry); cracked, kinked or disconnected purge hose; saturated or cracked charcoal canister

Volkswagen

EVAP system not purging fuel vapour as expected. Emissions fault, not engine damage; the N80 purge valve is the usual cause.

Usual causes: stuck or clogged purge valve (N80); charcoal canister breaking down; cracked or loose EVAP hoses; purge lines connected wrong

Not sure what P0441 means on your car? Ask Credov.

Before you clear it

Write the code down or photograph the scanner first. A code that comes straight back after clearing points to a fault that is still there. A car whose codes were cleared just before you arrived may be hiding one: the scanner's readiness monitors show "not ready" for a while after codes are cleared.

Researched by Credov from manufacturer and workshop sources. A fault code points to where a fault may be; a workshop confirms it with a diagnosis. Browse all fault codes.