General Information

P0441 Evaporative Emission System Incorrect Purge Flow

General Information

Component Location





General Description

The evaporative emission control system prevents hydrocarbon (HC) vapors from the fuel tank from escaping into the atmosphere where they could form photochemical smog. Gasoline vapors are collected in the charcoal canister. The PCM controls the Purge Control Solenoid Valve (PCSV) to purge any collected vapors from the canister back to the engine for combustion. This valve is actuated by the purge control signal from the PCM and controls fuel vapor from the canister to the intake manifold.

DTC Description

During "test of vapour generation" a new value from the tank pressure sensor is measured and compared with the start pressure at beginning of "test of vapour generation".
The PCM sets DTC P0441 if the pressure signal decrease occurs and the difference is below the predetermined threshold.
If same error code is set in the next driving cycle, the PCM illuminates the MIL.

DTC Detecting Condition





Diagnostic Circuit Diagram