DTC P0441: EVAP System - Incorrect Purge Flow: Condition
WARNING: This page is about a different car, the 2002 Suzuki Esteem. However, it is still accessible from the selected car via links, so may be relevant.
DTC is set when fuel tank internal pressure does not drop below a specified value when closing Canister Vent Valve (CCV) and opening Canister Purge Valve (CPV). Fuel tank must be at least 1/4 full, engine must be running at normal operating temperature and EVAP canister purging. ECM monitors this circuit once per drive cycle. Possible causes are:
- EVAP canister plugged.
- Loose or plugged vacuum hose.
- Open or short in EVAP system circuits.
- CPV malfunction.
- Canister air valve malfunction.
- FTP sensor malfunction.