What does code P0441 mean?

Q: What does code P0441 mean?

EVAP System Incorrect Purge Flow. P0441 means the engine computer has commanded the evaporative emissions (EVAP) system purge valve to open and flow fuel vapor into the intake, but the resulting change in fuel tank pressure or intake vacuum did not match what the computer expected. The computer is not saying a specific part has failed; it is reporting that the measured purge flow was incorrect during a self-test of the EVAP system.

DTC codes / P04xx · Auxiliary emission controls / P0441

P0441EVAP System Incorrect Purge Flow

P0441 means the engine computer has commanded the evaporative emissions (EVAP) system purge valve to open and flow fuel vapor into the intake, but the resulting change in fuel tank pressure or intake vacuum did not match what the computer expected. The computer is not saying a specific part has failed; it is reporting that the measured purge flow was incorrect during a self-test of the EVAP system.

SystemPowertrain

Code typeGeneric (all makes)

SeverityLow

Fix difficultyIntermediate

AreaAuxiliary emission controls

Guidance is general and written for all OBD-II vehicles. Exact tests and values vary by model, so confirm the fault before replacing parts.